1275 How To Convert Old Phone Batteries For 101 Uses

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[@ecospider5]

Good call. Rarely is an edit needed on a video once it is published. But this edit was definitely needed. It shows that you truly have a goal of teaching people correct information. Great job. This definitely makes my opinion of you go up to respecting you in a way I reserve for very few people.

[@ThinkingandTinkering]

thank you mate and yes the edit was needed for sure

[@TrentTationnaiseXization]

The best teacher!

[@AndyFletcherX31]

@@ThinkingandTinkering Agreed, good call. :)

[@Kiyarose3999]

Teaching how to learn, and learning together!. Something the Education system should do, instead of teaching us what to learn!

[@williammartinez3392]

Robert I just want to stay thank you for spreading your knowledge with such enthusiasm. I think I’ve learned more from you then anyone else in my life. you’re a natural teacher, I enjoy your videos even win the topic or subject is not necessarily something I’m interested in. Thank you!

[@thyhaggis7139]

He just taught paraleel and series without being a smart arse about it I love Roberts passion for tech tinkering and experimentation. if he was my Science teacher I would of learned what I should of learned 30 years back. Would love to visit the workshop for an few hours I think I would leave with a PHD 😂

[@TheClembo]

Love the channel BUT do wish you would give web-links to the gear you use in the video. I spend twice as long looking for products as I do watching you! -thank you.

[@chuxxsss]

Where have you been Rob, running later. I had to rock back and fourth, due to not watch you at breakfast here. Lol

[@stevetobias4890]

Also don't forget to cover the terminals with kapton tape to keep it from shorting out against anything conductive it may touch.

[@ThinkingandTinkering]

good point mate - thanks for the tip

[@ThisRandomUsername]

Good demo Rob. What's nice about those circuit boards is that they usually also switch the output off if the voltage drops below a certain point. That point is usually a bit low, but is good enough to stop the cells from being damaged.

[@Kiyarose3999]

Love this, what an excellent way of not only reusing discarded ph batteries, but also to do away with the ‘need’ for single use batteries!. Aren’t charge boards used in electric shavers, ph chargers etc?.

[@joelaichner3025]

Merry Christmas Robert , & Family

[@themadscotsman2159]

I discovered these lithium battery charging boards about a year ago and one project was to add it to a solar powered PIR security light to charge the battery fully when it receives insufficient sunlight in winter for a full charge, it works a treat. I've recently been scavenging batteries when I get the opportunity in order to repurpose them. A trip to my local phone repair shop is on my to do list and beg for some before they hit the bin. Thanks for a great video, I have some new ideas for projects now.

[@TrentTationnaiseXization]

I have a strip of them charging boards I was gunna use for a mass 18650 charger but I think I prefer this idea, I also got a bucket of lithium batteries from laptops to go with. A voltage regulator at the output could widen the voltage range to play with.

[@ThinkingandTinkering]

awesome mate

[@TrentTationnaiseXization]

@@ThinkingandTinkering Robert words cant describe how awesome you are.

[@j.f.christ8421]

If you have a look at the datasheet for those little boards, you can change a single resistor to set the charging current to anywhere up to an amp, IIRC they come set at 500mA. From memory it's up to a 20k resistor, I have one with a pot on it so I can easily change the charge rate. The chip also supports a thermal cut-out which I've never tried.

[@nicgreen4234]

Great video on so many levels Rob, thanks. When paired with the cheap charging circuits you show it gives years of life to old phone cells, and say goodbye to disposable batteries. One problem I've come across is small led torches (flashlights) relying on the small current available from disposable AAA cells don't like the high current from the li-ion cells. As in killed instantly! Led's are largely voltage tolerant but current specific. The opposite of filament globes!

[@azlandpilotcar4450]

Looking forward to the used cell phone battery charged paper and bamboo tricycle! Great video.

[@joelaichner3025]

Advanced MacGyver training ! So Cool

[@micksayers4528]

Hi Robert, you just managed to demonstrate the work i have been investigating on how to power an LED for your competition. I ordered 18650 Li-ion batteries which haven't arrived yet but should before the competition closing date. there are obviously some slight changes with electronic features and current supply to the board. would have loved to use LiFePO4 cells but they were twice the price, would make the electronic design, because of the similar nominal voltage to that of an LED, a lot more simple and safe with more than 10 times charge discharge cycles than Li-ion, a lot safer and cleaner technology. Also the LiFePO4 batteries would have arrived after the close of the competition. Never mind. Will still make a video of my set up. Mick

[@DoubleBob]

18650! That's quite a lot and sound quite interesting. Have you uploaded the video somewhere? I can't see it on your channel.

[@uksuperrascal]

Robert - For a more versatile PCB try the Micro USB 3.7V Lithium Li-ion 18650 Battery Charger Module Boost Step Up Variable 5V to 12V This will charge from any phone charger and can be set to run 9V PP3 Equipment.

[@AaronWood5887]

Great video and very helpful too I really like being a member too. I use batteries like that in all sorts of applications from lights, fans, wireless keyboards I even have a DC server controller that I use to test things with.I look forward to future videos from you it is always a pleasure to watch and learn from them. From Aaron in Oklahoma

[@Blinkerd00d]

Your laugh is contagious... lol I'm an electrical engineer but watched to the end for the amusement. Thank you, sir!

[@vontrippenhoff5937]

Absolutley find all your videos fascinating and inspiring...have you ever considered making a gasifier in a simple fashion but robust in delivering wood gass for cooking and powering generators for electricity..keep up the good work mate.

[@zylascope]

That's awesome, I'll be trying that. Thanks.

[@tahirqureshitgq7892]

Excellent, thanks.

[@Kiyarose3999]

Had to share this on Facebook.

[@RandomTorok]

In the video you mention testing the battery voltage. There was a range where the battery is fine, a range where the battery can be reconditioned and a range where the battery is garbage. Is there a formula for calculating these voltages?

[@Earzone63]

Awesome conversion! One thing I have to ask about is those ~£15 transformers/inverters inside the units that recharge nickel cadmium cells, I wondered how someone could make plug-in stuff more portable, without needing a ridiculously oversized inverter that costing >£100, (i.e reversing the flow of current from the batteries into a female to female three pin plug… Maybe the available current draw would be far too low however.)

[@benniedonald]

I learn something new every time. I had no idea you could get those boards so cheaply. Now I will never throw away a phone because the charge port has gone bad. Now if I can just find out where that string of lights are online.

[@Zodliness]

At 04:53 One must observe the difference between series and parallel lithium battery connections, Because you seem to have edited (chopped) that little nugget out of the original upload. Balancing chargers are always a crucial addition, if you're wiring two or more lithium cells in series.

[@mikaelfransson3658]

Emppowerment!!! Awesom!!!

[@lightcapmath2777]

Did enjoy the education. batter managers seam to be useful. Let me experiment. Best DVD:)

[@roman_abelardo]

Excelente aporte para reciclar baterias en desuso. Y...🤔 En el caso de aquellas que resultan imposible de revivir, será posible reciclar la pasta con Litio que contienen para nuevos proyectos? 🙄

[@angelusmendez5084]

Awesome! 👏

[@daveherd6864]

I was going to stack the charging boards to make a balanced charger but you can't because of the common ground and there is no way round it that I can think of

[@triciaholland7749]

just discovered he's live streaming on twitch - cool to see the behind the scenes

[@silverclouds3725]

Thanks, Rob!! Good ideas, all!! =0)

[@markauenhofer29]

Hey Mate, nice one. I got a bunch of old ipad batteries, which are bot in a Cover like most phone batteries are. To use them, should I build a Box that compresses them? I read that lipos swell when they are Not compressed. Thanks :)

[@josecardona8645]

I have a dozen ecigs batteries , all near discharged , I'm thinking of putting them in cheap fans as they take AA and add a USB cable to charge and keep the fan running , no circuits , maybe sealed in fire retardant , idk , but for a test

[@islandsedition]

Would it be a big job to rig up some induction coils to save plugging in devices like the remote or radio?

[@sarchlalaith8836]

If you used, say 10 phone batteries, is it as simple as adding the a value together to know what bms circuit you need?

[@ErickBuildsStuff]

Does these salvaged batteries have a BMS board individually? Or can we just skip the step and directly connect it to the charging board?

[@VA3HDL]

He mentioned on the video that he removed the original controller and connected the raw battery to the new charging board.

[@muhammedabdulhayyu5403]

can I change the battery of my phone to another brand of battery,??

[@bens4446]

Followed your instructions, used my cell phone charger, and the battery went from 0.4v to 3.5v in ~5 minutes. The charge board got hot and the light stayed red. I had a USB tester connected and it showed the battery was drawing just under 1A. What's going on?

[@edwinhageman3753]

Could one? Double up the boards? Like doubling up the batteries?

[@GoVertical17]

Hi, this off topic but do you have any projects for bio gas electric generator system? Keep up the great work.

[@captainprototype187]

I found a 30v 2 amps nimh pack in a vacuum. Can I charge it with only an adapter without the original charging circuit?

[@RandomTorok]

What was the name of the little circuit board? I've been thinking about this for several weeks now. I have so many old phones that I could salvage the battery from. Can you get that circuit board in a USB C model?

[@ErickBuildsStuff]

Yes. Check AliExpress or eBay. "tp4056 type c" should fetch you good results.

[@ThomasAndersonbsf]

a lot of those lights on a string that are LED these days have a box that takes like 3 AAA batteries ie perfect for liPo cells actually since they work down I think to like 3 or 2.5 volt)

[@ThomasAndersonbsf]

oh also as most things that use standard batteries, also are designed to allow using rechargable like cadmium sulfide, metal hydroxide ect, which means the voltage is 3 x 1.2v not 3 x 1.5 only, so 3.6 is perfect for those, it seems.

[@arowiki]

Think this will impress you Robert. Wind generator.

[@lowrads3653]

I wonder if I can convince the lab QA manager that we don't need to spend $600 on a new portable colorimeter from Hach, and that the battery powering the device is not relevant to method.

[@colouroboros9993]

awesome!

[@ThinkingandTinkering]

Thank you! Cheers!

[@WalterBurton]

👍👍👍

[@john_blues]

What happens if the batteries don't have the same capacitance?

[@j.f.christ8421]

You'll get current flowing from the "bigger" one to the smaller one. This isn't a good thing as you're wasting power and may cause overheating, so you try to use matching ones. Also even if you do have 2 matching ones, make sure the have the same amount of charge when you solder them together. It's a bit safer if you discharge them first.

[@john_blues]

@@j.f.christ8421 Thank you!

[@j.f.christ8421]

@@john_blues I should add my answer was for parallel. Basically if they're at different voltages then the 'bigger' one will charge the 'smaller' one until the voltages equal each other. When discharging & charging they'll do that as well, which may overstress the smaller one. In serial is a bit different, but the voltage on the 'smaller' will drop faster (probably dropping below the safe voltage) while the bigger one is still forcing current thru it. This is why dead battery packs (even back to the old NiCAD & NiMh ones) will have one dead cell, that's the weakest one failing first and killing the pack. This is why LiPo packs have the balancing & protection circuits. Finding matching cells is why those battery capacity testers are quite popular these days.

[@gazzaka]

I think you are skating on hot water, with no warning of the dangers of li-ion batteries !

[@RICHARDLUKENBACH]

what am i doing here? CAFÉ & CHARGE, THEATERS ALSO FOOD STORES ETC. Ford needs to buy cars from tesla all should buy tesla. what a way to go around dealers and having showrooms everyone will win but the big three now Elon should ramp up and get this order produced and delivered now! hertz. buy or rent from hertz!.