Charging a Lithium 18650 Cell using the TP4056

[@NomadHills]

I have been watching many of your videos and that one was exactly what I was looking for. Thanks a lot Julian !

[@stephendearne3935]

Thanks for screening this, I was most interested in your comments about the battery type. The curve shown on the data sheet was for a 1000mAH type, whereas the the type used for your demo was billed as a 3000mAH type by the manufacturer, so it would take a much longer time to charge, as you would expect from a higher charge capacity device. It would be nice to see a comparison of different battery types.

[@AintBigAintClever]

A LiPo named UltraFire. The irony :)

[@JulianIlett]

Too right! But TrustFire is even worse - they can be relied upon to set fire to your gadgets

[@MrOpenGL]

I found a battery named "UltroFite" - a ripoff of the ripoff!

[@mashedpotatoes5323]

*li-ion

[@jamespowell3056]

@@JulianIlett good fire starter in the bush or fire place

[@birrbert2356]

Great review! I'm using the same charging board for my solar cell phone charger project: small 6V solar panel charges the Li-Ion battery with the help of this board and then the battery will charge the cell phone with the help of a step-up converter.

[@JerryEricsson]

I have acquired a quite a collection of pretty good Lithium 18650 batteries by tearing apart old laptop batteries. I find that there is usually one, or perhaps 2 cells at the end of the pack that have gone bad and caused the monitor hardware to shut down the battery and refuse to charge. I throw away the cell or two that refuse charge, and the rest have been very good at powering various projects. I have a couple of power supply type builds where I have 3 or 4 cells in holders with step up and step down boards to adjust to what ever power I desire. I added common plugs for standard devices so I can plug in or hook to an adapter. Works great when I buy an old laptop with no power brick, I can simply power her up from my home made power supply and see if the unit is worth the investment of a power brick to get her going full time, or resell.

[@1959Berre]

Internal resistance rises up to double (and more) along with SOC (state of charge). So, current draw will decrease considerably as the battery creeps to its fully charged state. Temperature also plays a role, but it is less important under normal ambient circumstances.

[@Rcbeacon]

Great video, thanks. I've just received a couple of these chargers from a local auction seller. I expect they will be useful for charging small batteries used by the RC model people here. BTW: I had a couple of UltraFire batteries which did have the internal protection circuit. The end cap was a small PC board. They both failed after 4 or 5 cycles to zero volts. The autopsy showed it was the cell itself that had failed. The protection circuit did limit charge current and stop discharge; at least a few times.

[@NicholasAarons]

Fantastic Video Julian. Very interesting and informative. Keep up the great work. Nick.

[@samgab]

Excellent video. I've been looking at these little li-ion chargers on ebay too, so it was great to see a little preliminary analysis on them. Cheers!

[@turkeylips3680]

These type of circuit boards come as a strip when you buy two or more. Cutting the strip into individual PCBs is easy. The Japanese "Nokogiri" saw cuts on a pull stroke. The blade is super thin (like a "Zona" saw. The pull stroke of about 3 inches done twice will score the board enough that it can be flexed at the score line (like breaking glass with a score line) and it snaps like glass. A clean break. No dust or wasted PCB material. GREAT VIDEOs. These thumb nail size 18650 Li-ion chargers are just what the doctor ordered.

[@Mandrag0ras]

11:21 "...after about an hour and a half..." 12:18 "..it took a long time to charge..." In the other video where you review the Soshine charger you said that it took, give or take, 4 hours to charge those 3 batteries, so why is 1.5 hour a long time to charge this one?

[@hamedtaha1]

great video with a lot of science in there :D , can I integrate this board in an Arduino project (battery powered ) to power the project and easy charge the battery ?

[@voneschenbachmusic]

Appreciate the in-depth video on this module.

[@MikePoirier]

I'm always learning something here. These tiny smart chargers are awesome!

[@Protoproff]

Well presented bud very concise and clear. Enjoyed every minute and learned. Thanks

[@ectoplasma0001]

Hey! Great video. One question: how do you change the resistor (rprog) to change the charge current? Do you srew or roll it or something? Or do you litterly need to solder in a different resistor?

[@vigilante_stark]

Well you could add another one in parallel or replace the existing one.

[@raedy07]

why, to get more mAmps? would d other components be able to handle it?

[@oudotcom]

Well done. Which 16850 batteries are decent and you can recommend to buy ? Many thanks.

[@gruberhoffman]

Excellent video. I am looking for ideas on rebuilding ni-cad power tool battery packs with li-po batteries. The tricky part seems to be the balance charging required.

[@henriknorback7595]

How many amps do you need to supply from the 5 volt source? will 2.4A be enough to charge 5 batteries simuntanesly or do you need 1 amp per battery? :)

[@davidrobertson1980]

Julian, what MIC do you use man, it's SOOOOO clear!

[@Qubeorama]

Interesting little circuit. From my own testing all of the 18650's I've used have had rather high internal resistances as well(400mohm and above). To make the charger more time efficient you could charge multiple cells in parallel as you have more than one holder. Would be safe to do as long as the cells to be charged are all roughly the same voltage when you plug them all in. I've done this for years with larger LiPo cells for my quadcopters with no problems.

[@JulianIlett]

Just invested in a couple of 47mΩ Efest 18650 cells which can supply a sustained 10Amps. Only 2250mAh, but I'm more interested in the low resistance than high capacity. I'll try the parallel charging idea too.

[@Qubeorama]

Julian Ilett I'd guess the lower ir will be far more useful than higher capacity anyway. As there will be less voltage sag under load you'll probably end up having more usable capacity as well.

[@JulianIlett]

***** That's true - I'm pretty certain these are the genuine article. This is what I went for: r.ebay.com/5t5cFy

[@Bullfrogerwytsch]

with the newer charger modules(micro USB) (also has output protection), I think when you have a dead cell, it lights both LEDS simultaneously. does this older type do that too?

[@perryscopevids]

Another great video Julian!. I would be interested to know if its possible to charge these cells with this type of charger whilst in circuit?. It would be nice to use Lithium Iron cells in small projects charged by small 6V solar panels but also use them in circuit to power the project. Is this a good idea or not with this type of charger? I'm guessing this may be why your looking into they as well?

[@AgentPothead]

Sorry if this is a stupid question. If I am using this charging circuit the TP4056, do I need "protected" 18650 cells? Is the overcharge protection offered by those the same as in this circuit? If I am positive I will only be charging the 18650s with the TP4056, can I buy un-protected cells for cheaper? Or is that a bad idea and I should always buy protected?

[@chems]

is there anyway to make the controller charge at a higher current because I have 6 18650 cells in parallel and it's taking a week to charge them

[@lm0315]

Curious about that myself

[@amogh1773]

Use one IC per cell

[@lm0315]

Probably better if I just give my current setup. I have 3 banks of 4 cells ( each bank connected in series) and the three banks connected in parallel, the cells are 3.7v 2600mAh each. If I understand this correctly that's 4x3.7v ~ 15v for each bank in series at 2600mAh. And for the three banks in parallel that is 3x2600mAh = 8400mAh. what would you recommend as the good charging voltage and amperage for such a setup?

[@RamosLuis2550]

you could use an all metal thumb tack to use the flat + type battery

[@ptmoy1]

Chargers such as the Tenergy TB6B and Imax B6 charge LiPo batteries to 4.2V and LiIo batteries to 4.1V. I thought all 18650 cells are LiIo as indicated in the Ultrafires in your video. But most people on the internet use the 4.2V LiPo setting when charging 18650 cells. And the TP4056 also charges at 4.2V. Why the inconsistency? What do you think is the correct voltage should be?

[@constantinsirbu3482]

Thanks for the video, I was recently looking at this type of chargers too. The reason I was looking is because I wanna try building a battery pack of 100 cells (4S25P 14.8V). How would I be able to charge it? Get 100 of these chargers, 100 micro USB cables and 100 wall adapters? Are there any other more powerful chargers?

[@ericjackson7810]

hi julian, another question. if these boards are only designed to charge a single cell, is there a version of this board than is capable of charging multiples of these baatteries?

[@breathlessrider]

what kind of oscilloscope mode is this for logging real time... ?

[@buzzbombkirk]

Is there a way to use this for depletion protection? As I'm sure you know, if a LiPo drains below 2.8v, damage can (and usually will) occur. How could we protect against that? Are there TP4056 modules that have discharge protection?

[@dancoulson6579]

*Can* these cells be charged at a lower current than 1/2C? I understand that obviously it would take longer, but would they still eventually reach a full charge? And does doing this potentially increase the life of the cell? I am designing an emergency light, that will nearly always have connection to a supply for charge, so speed of charge is unimportant (heck 72 hours would be acceptable) but longevity of the cell is of primary importance.

[@Solar-Architect]

Hi Julian, I have several 6 volt (nominal) 2 watt solar panels. Do you think the TP4056 can handle the over and under voltage of the panels to safely charge an 18650 Lithium cell?

[@kartunenetwork9232]

Hi Julian! I have a question, if I have a battery pack of 2x18650s in series (=total of 8.4v if fully charged), would the TP4056 charge them both? Or would I need a charger that outputs 8.4v? Thank you so much!!!

[@MaxGoddur]

Do you have those boards and if you do is there a schematic for it(meaning the TP4056)?

[@ihtsarl9115]

Thank you for posting this very good video. I have bought 10 of these chargers, but the charging current terminates when the Li battery voltage reaches 3.97 dropping down to 1.5ma only, and never reaches 4.2 as claimed and also charging current never reaches 1000mA . Can yo explain why. I will be grateful if you share your feedback.

[@dreadood]

I bought these charger boards from different sellers, but charge current wont go more then 420mA, resistor is 1.2K. I even tried different power supplies, 5V 2A, 5V 1A, still remains the same. Then I tried reducing the 1.2K resistor, also this doesn't change anything, even if i connect directly without current resistor. Only if I use a bigger resistor the charge current changes to a lower current, but I can't get higher. Chip isn't hot at all, batteries were empty when tested (I checked at several intervals, still the same, and even lowering charge current). Julian, do you have an idea what could be causing this problem?

[@scolic03]

Can this be used to charge lithium cell phone batteries, for example a Nokia BP-4L 1500 mAh? Also where do you source the USB power, a PC or somewhere else? Isn't 1 Amp a bit taxing for an standard USB cable?

[@captainprototype187]

With s ome batteries that are shady , the module, right away displays a very small blue (or red, cant remember which) led when you plug it in to charge. The last lion cell that I tried had a stable voltage of 0.86 volts. Is the small blue led a signal that the voltage is too low too charge or that there is a short in the cell? I use the cells inside the electronics cigarettes.

[@cashe18]

Great Video... Did you test the results of that charger when you have an actual load connected to the battery? Say a light for example

[@JulianIlett]

I might do a video on that

[@DharmendraKumar-rm3hs]

Carlos Pineiro

[@ashuntu2010]

what would happen if the input voltage to TP4056 is lower than 4V and the lithium battery is connected to the TP4056.

[@Screamingtut]

Juliant, I got a bunch of those batteries at 4000 mah what is the real current capacity of them and we're can I get better batteries at a decent price. Thanks in advance. BTW I brought 2 of the skyrc chargers on eBay both were fakes they gave me my money back I finally got the b6 mini which was the real deal. But they let me keep the other two. I enjoy your video brings me back to my youth when I was 15 playing with tubes and transistors LOL! Krisy

[@TribunusLaticlavus]

The highest 18650 capacity you're likely to see currently is in the 3400 mAh range, I think Panasonic might be in the process of making slightly higher capacity cells but haven't seen them on the market yet. And for what purpose do you intend to use them? Most of mine go into projects and torches with the latter I always go with a protected battery, it'll disconnect the battery when overcharging or over discharge is about to happen. I mostly have KeepPower ones based on the Panasonic NCR18650B cells (3400 mAh, the high capacity variant) up to 3A these will do fine but if you need higher sustainable currents I'd suggest to go with high drain optimised ones. I also have a bunch of older lower capacity ones and unprotected naked cells, if I can implement the cutoff below a voltage myself this is cheaper and the extra protection chip obviously adds a little bit of resistance (insignificant unless you're using really high currents). I get most of my batteries from www.nkon.nl, a Dutch webshop due to both price and speedy delivery. Not sure what they charge for international shipping but within the country I get the orders the next workday unless the post company slacks and it spends an extra day in transit. The site has a good reputation on candlepowerdforums and is used a fair bit within Europe for both decent pricing, fast delivery and getting authentic products. I'm always a bit sceptical on eBay there are too many fakes floating around, rewrapped old laptop cells basically if the price is too good to be true or rated capacity is wrong don't buy it. NKON is probably not going to be worth it outside Europe due to shipping cost and time. Torch and other hobbyist places such as candlepowerdforums will likely have people knowing good reliable sources. Perhaps as simple as pointing you to the right vendors on eBay. lygte-info.dk This site may be valuable to check some reviews of various batteries, he does pretty detailed testing at a good range of currents and also checks what currents trigger the PTC, may be important to know both to make sure it has one and if it'll allow the needed current in a really high drain scenario. Again be mindful of fakes, personally I'd avoid ****Fire. Not all are fake but even the ones that aren't tend to be mediocre at best. Do yourself a favour and get a quality battery especially considering how long they last and they are much more likely to fail safely when accidentally short circuited triggering the PTC and probably frying it saving you from a thermal runaway and gas venting or possibly even fire.

[@davidbolha]

Hello, Great tutorial & explanation. Thanks ! 😊 I used the exact same design of the PCB for my sister's custom modified 3.5 MV stun gun. For charging the LiPo Battery that I installed in there. Handy. 😁😃

[@Kennynva]

These work very well..I have never understood why they dont use a red led for charging and a green when done..it has to be cost..

[@felixtay6191]

Good idea! Are the ultrafire batteries n e good?

[@JS7457]

Hi, on this video and on the "New TP4056 Lithium Cell Charger" video on you oscilloscope we can see the batteries doesn't charge up to 4.20V but 4.12V. I have the same problem, when i charge a cell it stops at 4.12V or 4.16V, i tried with different cells (good ones) and different modules but no difference. Maybe it's the 18650 holder are not good, the wires too. Do you know why ?

[@thedanishvapingviking8473]

So what was the result when using a good battery?. how much did it charg at 1A?

[@Adrian-cg6eb]

I does not. At least not for me.

[@BersekViking]

The thin wires connecting the battery must have a resistance that causes the voltage at the chip to be higher then over the battery. Thereby causing it to lowering the charging current too soon.

[@urugulu1656]

i use a solder blob to make the positive terminal flattop compatible

[@AV1461]

Can you charge the battery while you're using it with this arrangement? Where can I find information on this matter?

[@ljśwav]

Hi Julian I have 3 NiMh 800 maH in series I seek to charge at .1C only ie, 80 ma. Question is can i use this TP 4056. I do not need trickle or fast charge. A brilliant series of videos a credit to you.

[@deangreenhough3479]

Nice use of your sillyscope, thank you for a great video and the wealth of information. I have just purchased 10 of these. 🤓

[@BigPinkJohn]

A great video thanks Julian, trying to find a source of good, GENUINE, 18650 button top batteries in the UK on the internet is proving difficult since I discovered the amount of fakes out there. I genuinely didn't know until I started using 18650's for things other that cheap torches and bike lights.

[@miladinpetrovic2534]

Dear Julian, I have two li 18650 3,7V, 4400mAh batteries ( I suppose so, I took them from laptop battery pack which contained of 10 pcs., with total declared capacity of 4400mAh) welded in parallel, which I want to integrate with LED torch (currently supplied with 3AA batteries connected in serial). The problem is that I need miniature 220V/USB chrager (less then 3,5x4,5cm ) which I want to integrate with mantioned LED torch as well. I prefer 220V (if it exists that small) to USB option. Can you recommend any instant solution, those TP4056's are really small, but USB operated. Thanks in advance.

[@kryptocat4240]

Can i charge 2 parallel lithium ion cells of 2500mAh each through a single TP4056 module

[@codebeat4192]

Nice video! Is the 3A overcharge protection or output protection? See allot of these modules but has some doubts on the output specs. I want to use it to charge 4 18650 2000mah batts but output must be at least 5A to power an Amp. Suitable for this?

[@Phoen1x883]

According to the datasheet, the TP4056 is only designed to handle a single cell at a time. If you want to charge 4 cells, you'll need 4 chips. These boards are available for $.31 each online, so it won't cost too much, but if you need something really compact, you might want to look for something else.

[@Phoen1x883]

Actually, that's not really accurate; you *can* charge multiple cells with a single chip, but they won't be balanced. If you have very similar cells it probably won't be much of an issue though. Depends on what you've got.

[@codebeat4192]

Thanks for the answer! Hmm strange, there are 4 cells chargers around with a single chip, but okay just found the datasheet. This is some sort of test 'prototype' so I want to figure out it will work anyway. And yes, bought this one for 31 cents ;-). I know there is only 1A available so I know it takes longer to charge, not a problem for this version. I have also the one without protection but can't change setup because of decisions already done (glued etc, stupid I know). Batteries are from the same type and batch so I think this will be not a problem for this test 'prototype'. One concern is the output, is it limited by the protection circuit? That would be real problem. Is the 3A overload protection or overcharge protection? When it's output is limited to 3A I cannot get the full potential out of the batteries required for application, need at least 5A peak. Not clear to me when I look at the datasheet and product discriptions of sellers. The datasheet mention there is no blocking diode required but I want to know when I put four outputs (the output pins, not the battery pins) of these in parallel, will it work anyway, is it safe or do I need to purchase another module. Another question, you show some recovery at your video when you reconnect the charger in charge modus. Mine starts to charge but do a full charge (but batts are already fully charged), is this because of I connected 4 batteries instead of one? Thanks for the answers if you want to answer ;-)

[@codebeat4192]

At the 8205A datasheet: Discharge overcurrent detection in 2-step - Discharge overcurrent detection voltage 0.050 V to 0.300 V *4 (50 mV step) Accuracy ± 15 mV - Short circuit detection voltage 0.500 V to 1.000 V * 4 (100 mV step) Accuracy ±100 mV So it detects voltage drops because of overcurrent? It doesn't measure Amperage but voltage drop?

[@Phoen1x883]

Taking a look at listing 32230225249 on AliExpress, the seller description clearly says 3A for battery over-current protection. That would imply that you could probably put more power through the rest of the board, but with the Chinglish descriptions, it's hard to be sure. Keep in mind that the board in this video uses the TP4056 in addition to other components. Those other components provide other functionality that won't be mentioned in the datasheet. For the outputs, you should be able to connect multiple loads in parallel. What will happen if you exceed the 3A battery current limit, I'm not sure. It depends on the board. If you're lucky, you might be able to get up to 4A with the charging circuit active, but it might not like seeing wild fluctuations in current and shut down. "you show some recovery at your video" Wait whoa hold up a sec. This isn't my video, I'm just some guy with a bunch of old laptop batteries and a penchant for starting electrical fires in my house. If you need more solid answers, ask Julian.

[@CANTON76A]

Bought few of these, for playing around, and some of them, after a while, stopped working properly, the LEDs are on even without a power source, just with the battery, (red LED if the battery is not fully charged and blue if battery is charged), plus the charging does not stop at 4.2V goes up to around 4.5, any idea why?

[@CANTON76A]

***** have the new ones as well, same problem.

[@salsun7437]

4.5v?! Well I guess I won't be using these ever...

[@FTBLN]

I just read the specifications for an ICR 186050-26FU Li Ion from Samsung. They were tested with 12V overcharging for 2.5 hours. Samsung says "no fire, no explosion". I'm not sure about other Li Ion batteries, but at least with a few you should be fine with overcharging. Definitely check the specs for your Li Ions though.

[@inventhead]

marine grade amps are best. also to remember when batterys run down on volts the amp draw is higher from the load .unless you have an out side power feed to recover the volts. that part is in its chemistry and how large or small the holes are in substrate that electrons flow past like sand through diffent size screens.

[@barrygreengrass3379]

Hi Julian Do you know where I can get a Charging / discharging Battery Charging Board, Charger Module for the LiFePO4 Battery 14500 3.2 Volt? Regards Barry

[@mnovo]

Considering how accurate a Lipo battery charger has to be as per battery specs, it would be interesting to see data on the voltage drop from the charger to the cell because of the battery holder. It looks suspect to me.

[@AudioTestsNReviews]

Hi, would I be current to assume that if I connect 4 capacity-matched Protected Panasonic NCR18650B batteries to this in parallel, that would charge them with 250ma of current going to each of the four cells if I use the default current setting?

[@easyamp123]

+ATNR. If all cells are at an equal state of charge and roughly the same age and treatment at the time of recharge then they'll pretty much all charge at the same rate. They will all end up 4.2v's eventually. With protected cells you almost don't need a charge controller as they more or less already have one built in. Most protect against over current in and out and over/under volt, which is what cc/cv charging is, some also monitor temps. But you can't always rely on these built in's unless you know exactly which controller is installed for protection, like an lm3641 or similar.

[@danhle1032]

i like those current/voltage graphs...but is there one that shows capacity fullness too? I'm wondering what is the capacity when it's at the beginning of the constant voltage phase or end of constant current phase?

[@micheals1992]

+danh le that varys from cell to cell and you'd need proper testing equipment to measure how much is put into the battery over that time. The constant voltage phase is actually just the charger holding the same voltage and as the voltage differential between the charger voltage and the cell voltage goes down the current flow also drops... like if you disconnected the charger at the start of the constant voltage phase it might read 3.8v halfway through it might read 4.1v when disconnected and at the end 4.2v disconnected (at all 3 states of charge the charger would be holding something like 4.25v) You need a voltage differential between the charger and the cell otherwise their would be absolutely no current flow (a multimeter would read 0v) but if you put over 4.3v into a lithium cell it can cause damage which is why constant voltage trickle charging is used for the last portion of the battery

[@danhle1032]

+micheals1992 thanks that was helpful!

[@micheals1992]

danh le no problem! glad it was useful to you :)

[@An_Urban_monk]

Can you make a video about using this unit, or the BMS board that allows multiple cells, and the power source being a solar panel?

[@kinghayve6479]

If you've wired up your own battery pack with these 18650 cells how would you go about charging the whole pack as one? Will these cheap chargers work for that?

[@DantalionNl]

Hi julian, have you tried removing the protective circuit inside the Ultra Fire battery. I had to do this with my Ultra Fire batteries for them to properly charge. They now work fine except of course the mah is a big lie.

[@JulianIlett]

None of the (fake) Ultrafires I bought had a protection circuit.

[@manickn6819]

Great video. Thanks. Going to add this to my list of cheapo boards to experiment with.

[@kyoudaiken]

Hi Julian, did you purcase some of the original Panasonic ones I recommended to you? I have 10 of the same chargers here. They are onderful. Not everything from China is rubbish!

[@JulianIlett]

Yes, sort of - I got these: r.ebay.com/5t5cFy Panasonic CGR18650CH cells, 10A current, 47mΩ internal resistance, 2250mAh. UK seller, so they'll come quickly.

[@kyoudaiken]

Wow very good price, I payed 50 EUR for 4 of the green ones!! I think this are 46 BP.

[@amicklich6729]

Great way to repurpose an old cell phone charger I have laying around. Now I have a useful battery charger for the cost of that board :)

[@steve8939123]

Hello, very good tutorial. I have a question. How does the tp4056 know when the battery is fully charged? The battery is 3.7 volts and the charger is 5 volts. Thanks

[@yeeboi5545]

When the battery is fully charged it'll be at 4.2V-ish and draw very little current. It just checks those two conditions.

[@phoenixrising2645]

How long should it take to charge a fully discharged 18650 cell using the TP4046? I have had my setup charging for over 36 hours and the red light is still on. Is something wrong?

[@KenedyNguyen]

Will the battery charger terminate when battery is full? Sorry for asking because my listening skill is not very well

[@JulianIlett]

Kenedy Nguyen Yes, the TP4056 datasheet explains how that works

[@KenedyNguyen]

tks a lot for helping me. good luck, sir!

[@kartunenetwork9232]

+Kenedy Nguyen thank you i dont have to ask and wait for the answer :D

[@MsDonkeyPower]

Could this be safely used to charge a 3.7v 1500mah square Li-ion / lipo ? Also i see you plugged your micro usb lead into a wall charger will it work for this as well as through an actual usb port on a laptop/computer?

[@inteligentdesign8597]

this usb module - how many of the 18650 batteries can you hook up to that tp4056 I would like to build my own power bank for usb things and im still new to electronics . ps been watching all your vids - good learning vids thx

[@fklotaloi]

Julian, in yr vid u did not come to any conclusion abt how ths little board on average or how mch tme it tkes to charge th battery. wld u pls let us knw tht? Thanks.

[@ramongarciano569]

where did you download the TP 4056 data sheet sir ?

[@RandomLOLGamer]

Could i make a cell balance charger with these? For example, if i had a 3S 12V LiPo battery, i would use 3 of these bad boys and charge all the cells separately. Would it work, or am i missing something? Im planning to make my own small LIPO cell balancer for my elecrtic skateboard. Will this work, or am i missing something?

[@RandomLOLGamer]

RandomLOLGamer Update, i tried, it failed, it seems problems occur when connected in series. Im going to order some isolated DC-DC converters, put them behind the power supply and report back if it works!

[@RandomLOLGamer]

RandomLOLGamer If you have isolated ground supply wires, it will work, otherwise not, you are better off buying a normal balancer charger.

[@Reach3DPrinters]

Are you youtuber Twisted?

[@australianstig]

Just found a listing for 10 of these for just over $7AU, great little idea that 10 of them will fit the bill just nicely.

[@dannygrogan353]

can these only be used to charge this specific battery type(18650) or could it be used for other lithium 3.7v batteries?

[@kinggeorge5729]

Hi Julian, i have a question for you if you could answer. I want to make a AA/AAA charger that charges 1 battery. I have a solar panel of 5volts, and max output 2 amp, or another at 5volt 600mah. Would this module blow my battery up? Thanks if you can help

[@JulianIlett]

This module is for lithium cells, not NiMH.

[@pulesjet]

Limiting the Top Off charge to 4.0V significantly extends the battery Cycle Life. I don't suppose you can alter those to limit the Charge can we ? The Reference is inside the IC ?

[@texjarhead]

Julian, is there a name for that small USB connection so I can order some?

[@vanyousif]

Hi i ask about the input current can input more than 1A ??like 4Amps or more that’s make a problem??or it’s ok

[@kostasjo3]

amazing video!!! just a question...if I connect 2 tp4056 modules to a 5V 2A phone charger will i manage to charge 2 18650s with 1A current each one?

[@billysgeo]

+Oti Na Nai Θεωρητικά ναι. Δεν υπάρχει λογος να μην το κάνει. Αρκει ο φορτιστης να μπορει να δωσει 2Α πραγματικα (δλδ να ειναι καλης ποιοτητας)

[@kostasjo3]

Ενας Samsung είναι απο κινητό...το εκανα και σύμφωνα με το χρονο φόρτισης φαίνεται οτι όντως φτανει κοντά στο 1Α σε κάθε μπαταρία...αλλά ή πλακέτα ανεβάζει τρελές θερμοκρασίες και ο φορτιστής ζεσταίνεται αρκετά...είναι φυσιολογικό;

[@billysgeo]

Οταν λες τρελες θερμοκρασιες τι εννοεις? Μετρησες ποσο? Προσφατα "ανακάλυψα" οταν δοκιμαζα κατι stepper οτι οταν κατι πιασει 45-50 βαθμους δεν μπορεις να το αγγιξεις για πανω απο 1-2 δευτερα. Αλλα 50 και 60 βαθμοι δεν ειναι πολλοι για πολλα ηλεκτρονικα. Για καλο και για κακο ομως εγω θα τους εβαζα απο ενα μικρο ψυκτρακι (τα πουλανε φθηνα, για μνημες)

[@kostasjo3]

+BIll Georgoulakis δεν έχω τροπο να μετρησω ακριβώς αλλά είναι αυτό που λες, δλδ τα αγγιζεις max 2sec...είδα όμως κάτι γραφικές παραστάσεις για τη συγκεκριμένη πλακέτα που δείχνει οτι πιάνει 60+ βαθμούς χωρίς να μειώνεται η απόδοση της...έχω ψυκτρες και περιμένω τη θερμοαγωγιμη τωρα...θα το δοκιμασω...ευχαριστώ πολύ φίλε μου για τις απαντησεις

[@billysgeo]

Ετσι ειναι. Δεν υπαρχει προβλημα στους 50-60 βαθμους. Επισης οι απλες παστες δεν κολλανε. Θα σου φυγει η ψυκτρα. Δες στο eBay για "thermal adhesive", υπαρχει και σε παστα και σε διπλης οψης ταινια. Πολυ βολικο.

[@ElectronicCreations]

Can you make review on new tp4056 with micro conector?

[@robviolin1]

Good vid and good info. Can one discharge an AGM battery all the way down and recharge it without causing damage to the AGM battery? Thanks

[@revmpandora]

+robviolin1 The tp4056 is not for charging AGM or any type of lead acid battery; or any non~lithium battery

[@robviolin1]

+revmpandora thanks but I was asking a general question. My question was : can a agm or lead acid battery be complete discharged and then recharged?

[@revmpandora]

I see. When you completely discharge, do you mean down to 0.0 volts? I ask because I have brought lead acid batteries back from near terminal voltage, like under 1 volt, but never from totally dead, 0 volts. Either way, it's not good at all for the battery. You should look into something, I think is called desulfating a lead acid battery. Not my area of expertise, but I've read on it some. It helps undo some of the damage that occurs when a LA battery is flattened. Good luck!

[@robviolin1]

+revmpandora very helpful, thanks.

[@revmpandora]

robviolin1 No prob

[@StephenBates7]

Does this have an output for a load? I'd like to charge a flat Lithium Ion battery with USB, but also be able to power a wearable electronic prototype.

[@JerryEricsson]

I use these boards, and their successors all the time when building projects with lithium batteries. Of late, I have been building ghost detectors (OK static electric detectors) using old phone batteries, or batteries taken from old tablets depending on the case I build them into. I simply carve out a slot in the bottom of the box, well the edge near the bottom, then glue one of these little gems in after having hooked her up to the battery and device, and away we go, looking for Casper and his buddies in the creepy old houses in the area, where known murders and suicides have taken place. Now don't get me wrong, I don't particularly believe in that crap, but I have a niece who believes with all of her heart. She doesn't have enough money to buy a ghost detector kit, so I have been building her one. My next build will be a tri-corder for her exploration of spooky places, including a motion detector, temp sensor, humidity sensor, distance to object read out and a few other goodies that I have sensors for. Perhaps even a gas detector.

[@micheals1992]

Most of the lithium batteries with "Fire" in the name are utter shite

[@diycrazyhands1569]

A good device, but it has one drawback - charging at a amperage of 1 amp heats TP4056 chip. I recommend to reduce the charging amperage up to 0.7 A replacing the resistor (search in google)

[@cebruthius]

Is it ok to leave the board connected with the battery while the battery is in use?

[@Duffloop]

Excellent vid, building a box mod using one of these, answers all the questions - cheers for the info :-)

[@edmsupplies]

I was testing my 4056 charge current with my multimeter in DC amp mode directly at the battery and I don't get anywhere near 1 amp of current during the constant voltage stage. The max current I measured was around .4 amps. I was using a 3000mah flat Lipo battery with and without a charge monitor on the battery. Have you every checked actual current at the battery?

[@MrOpenGL]

James Vesely Your power supply has got a problem, most likely, because on my TP4056 it gets to 1A both measuring at the battery and the resistor.

[@yugaindiranmarimuthu7310]

do you know where the "heatsink" part under the ic is conected to ? is it connected to ground or is it just not connected to anything and just act as an heatsink

[@youpattube1]

You said that you were not actually seeing current on the oscope screen, but voltage, but it was at a "one to one with current, so it is the same thing". Would you explain that ? You also said the current shown was so many MILLIAMPS per division. Again, would you explain this ?

[@steve64464]

How low does one of these cells have to be for the charger to start chargeing them ?, When i put cells in the led instantly turns blue suggesting they are already charged. I have 12 unprotected cells from laptop battery pack and 2 protected crappy ultrafire which are so weak but when you insert them into charge pcb it lights blue unless the internal resistance is high or something.

[@EliteSniperTV]

Is there a circuit that lets you charge two of these at the same time?

[@ClemOnShow]

+EliteSniperTV search for 6.4V LiFe Battery PCM Protection Circuit Module For 2S1P 18650 LiFePO4 C:5A 053 on ebay you'll find plenty

[@RobynTapps]

2* 3000mah @ 4.2v is equal to 1* 6000mah @4.2v you could use one board but it would take way longer... you could also dasiy chain multiple boards together to one power supply.. to keep charge time down..

[@micheals1992]

+RobTapps88 the cells are fake... he'd be lucky if they've got 1000mah each... some of the ultrafire 3000mah batteries test as low as 600mah

[@jeremyhenderson163]

Hey Clement,would that module work for a 2S3P cell pack also or should I go another direction? Safety and charging speed are my aim.

[@jeremyhenderson163]

I'm using a 9v (3w) solar panel (with an adjustable step down module at 8v) as the primary charging method,but I want to add a 2ndary for when solar isn't available.

[@ash1219]

helpfull video..took me one step closer to completing my project!!!!im so sry i cant help but notice this.from 8.05 to 8.36 r u holding ur middile finger!!!!?

[@TheWildBrass]

Hello Sir, nice video, I'm about to do a project where I'll use Ni-ion batteries and I'll have one of those tp4056 that you are showing on this video (exactly the same) for each cell, but I was thinking of a little problem which is, how much current does this chip requires? I know the voltaje has to be between 4 and 8 volts according to the datasheet, but I haven't found any data that tells about the current this chip requires to work, could you please tell me if you found out? as extra data, my project will use 8 cells, so I'll have 8 tp4056 to charge each cell individually and in relatively quick time, so what I really need to know is how much current this will take so I can find a good power suply to power these tp4056 chips. thank you for your time and keep on doing these nice videos. Greetings from Chile!

[@danhle1032]

you mention the rprog resistor as limiting current. How do you change it? Literally do you need to unsolder it and put in a new resistor?

[@0lleman]

+danh le Yes

[@Jahmas88]

Hi, I was just wondering If I could power a project straight off of this, so I can make the project usb rechargeable, also where would I put the connections for this, straight from the battery or from the board? thanks (I'm new to this sorry if any of that made no sense)