New LiFePO4 Cells - 32700 3.2V 6Ah 19.2Wh

[@airwavested]

Is there any reason you can't do away with the battery holders and design and use PCB's for both pack ends? This would eliminate the need for slotted or oversize holes in the PCB's and also give the packs structure.

[@StephenBelcher-k6p]

Julian”And” Oh! But I Do Worry , Sometimes, At The Thought Of Young Julian With All The Electricity And All That Wood!”😂❤Hi AgainJulian

[@BeezyKing99]

Just realized that your shed pack was from your bike pack you modified to take the cells… from 6years ago!… holy crap, those batteries are still holding up

[@JulianIlett]

Yeah, they're 6 years old, but have had very little use. Working well :)

[@BeezyKing99]

@@JulianIlett very well if you ask me

[@phester28]

put us out of our misery and capacity test so we can know if these are a good buy or not :)

[@JulianIlett]

These are seller tested. One box says 6225 to 6250 mAh, the other 6050 to 6075 mAh. Maybe that explains the price difference :)

[@phester28]

@@JulianIlett I am not one to go off blind trust :) But it still depends on the C rating that he used. Would they supply 2Ah for the 3 hours or did he test at some 500ma load :p NOw being LIFePO4 they should be able to manage a good load anyway

[@OlanFantaziya]

Can also recommend the 32650 cells from Basen. Bought 5.5Ah cells @ 1.7$ each. Tested with 5.6Ah@1C.

[@ekaa.3189]

You inspired me to make my portable soldering iron power supply. I ordered 18 32700 LIFePO4 cells last night. Went with flat capped tabless cells from Battery Hookup. I'll spot weld tabs on them that run to the PCB where all the circuits will be. All the chips will fit between the cells. Height limit changes. Had to switch capacitors so they fit. I'll be using 9 in series for the battery pack. I designed the balance system already. Working on the monitor circuits. Need to also come up with a buck/boost converter to output anywhere from 12 to 24 VDC for the TS100 soldering irons to use. Version one may just use a simple LDO linear regulator. As for the case, it'll all go into a Pelican 1060 case, including 4 TS100s, spare tips, tools, etc. Solder, flux, tip cleaner, alcohol, etc will go into a second 1060 case. I may have to loose one cell for connectors. Yes, waterproof when closed up is a requirement. Maybe should switch to 1/8" 3 conductor phono jacks as they would fit better than the 5.5mm barrel jacks plus 4mm tip earth ground banana jack.

[@frankowalker4662]

There is a woman who hangs around the play-ground offering cheap batteries. She sells 'C' cells by the seesaw. I am so sorry.

[@antibrevity]

You aren't sorry. No one forced you to do it ;) .

[@frankowalker4662]

@@antibrevity Ha ha.

[@BenCos2018]

😆😂😅

[@joatmofa0405]

A solid 9/10 !!!! I'd like to add .... "Yes sir, so she does!"

[@Dave5843-d9m]

I wonder how well these would work on a e-bicycle?

[@jekylltraveler]

If you used a PCB for the electrical connection, could you also use the PCB as a replacement for the battery holders?

[@SuperBrainAK]

cool I like those batteries, you dont have to worry about soldering or spot welding onto the battery it already has a reusable lug on it! just dont put too much stress on them as they might snap off, though you will probably just rip a hole in the end of the cell before that!

[@netook8]

wow these are convenient. No welder or solder gun required. just putting holes in your copper strips.

[@LightVortexMatrixStudy]

Dang you Julian. Always cool stuff. Where's the shopping link.... Just take my money please...

[@afdzalabdmalik4612]

At full charge what is the voltage?3.65V?

[@MoseyingFan]

I guess they measure including the studs. Got a bunch of 18650 cells scavenged from robomowers and I considered getting a small spot welder but I already got a stud welding machine. (Used to run my own sheet metal company here in Gothenburg)

[@Dirt-Diggler]

The ones with the nut and bolt are used in emergency lighting as the backup power 👍 4 in a row in thick shrink tube, they replaced ni-cad packs with soldered tabs a few years ago 👍

[@JulianIlett]

That makes sense :)

[@joatmofa0405]

Is there any website where I can read up on "The nut and bolt ones are used in emergency lighting as the backup power" ?

[@Dirt-Diggler]

@@joatmofa0405 I'm sure there's other uses 👍 that's just where i find them when i scrap out old tech, search for the size of cell IE 26650, 18650 ect otherwise try a search fir cylindrical cells LiFePo4

[@joatmofa0405]

​@@Dirt-Diggler lol - I think one must be specific when ordering (to ensure avoid getting the wrong cells)!

[@varshaunnik8803]

Hi... May I know that which is best for the EV, whether LiFePO4 Or Li-ion... What is your opinion...

[@JulianIlett]

LiFePO4 is certainly safer.

[@hi-tech-guy-1823]

Use Slip slits instead of holes (===) Allows for deformations in case or Center post ailments

[@NoisyPlaces]

That was what I was thinking, and he could rotate the cell in the holder to bring the pin to center (side to side) even if wasn't centered the other way.

[@NiHaoMike64]

@@NoisyPlaces On the bigger cells, it would make sense to have the negative stud intentionally offset to the side to reduce the length of connecting strips needed.

[@chrishartley1210]

Standard is 4.3mm holes to allow for tolerance variations.

[@rahulanshan1371]

What type of nut you are using? Are they m3 nuts?

[@Rustynutsindustries]

Had to order , be here Monday.. do you have a link to the bms .. great work 😍

[@CollinBaillie]

What do you think of the LTO batteries? (Lithium Titanate)

[@JulianIlett]

I've never tried them, but don't they have a lower energy density than LFP? They have quite a low voltage too.

[@n.shiina8798]

@@JulianIlett they have lower energy density but have greater cycle, greater charge C rate, and much safer. i guess they fits on places that deep cycle a lot or on high risk environment like automotive. they dont combust if punctured

[@CollinBaillie]

Yeah 2.3v nominal. Interesting that they state upwards of 25,000 cycles life time. And I _think_ that's the 80% capacity figure.

[@JulianIlett]

Interesting. Cycle life is a consideration as my cells will likely be cycled once or twice per day.

[@CollinBaillie]

@@JulianIlett so the common cell size on your friendly chinese selling place is a 66160 or 66180 cylinder. Capacity is up to 45aH. Seems commonly 40aH. I don't know how that relates to energy density. I guess at 2.3v nominal, it could mean less energy density?

[@Distinctly.Average]

@Julian - Bit worried about your foam insulator between your battery packs. Is it fire retardant foam? If not worried you have created a bit of a tinder box there.

[@Alexzone45]

I've purchased a set of these cells for myself. Gonna probably make another small portable power station out of them. As the screws will help me a lot to connect them up with a good enough connection to handle some decent current. Much better then soldering. like i've done in the past. (i'm sure i'm gonna make somone cringe at the thought that I soldered batteries to make some of my battery packs) XD

[@Dave5843-d9m]

I tinned and soldered 2032 button cells for tyre pressure sensors. Despite having minimal heat sinking (good risk of damage) they were absolutely fine.

[@alankingvideo]

How many years of minimg to pay for those batteries?

[@AK11020]

Seriously tempted to get a pack to replace lead acid batteries in my allotment. My power useage comes to around 6 Watts an hour, so wondering if a pack of these would be enough to cover a 24hr period. Thanks for the video, will watch keenly how you build your battery out.

[@JulianIlett]

These cells are marked 19.2Wh (let's call it 18Wh). At six watts continuous, they'll do 3 hours. 8 cells in parallel could do 24 hours. Stack them in series to get the voltage you need - I'm guessing 12V. A 4S8P battery should work :)

[@joatmofa0405]

@@JulianIlett Also keep in mind D.o.D. (depth of discharge) and small Voltdrops over cable lengths.

[@davidsharp9166]

What's your earnings, been like on the Hashing machines?

[@JulianIlett]

Paltry! A couple of cents per mining session (although it looks like I may do 3c today). But it's all a matter of scale.

[@davidsharp9166]

@@JulianIlett still something tho

[@donepearce]

Should pay for the batteries in a couple of years. After that - watch the money roll in! ASIC-based miners would do better, but they can't adapt. Every time there is a new algorithm they have to be replaced.

[@NiHaoMike64]

@@donepearce Some of the latest ASIC resistant coins like the current hard fork of Swagbucks use a variety of algorithms with a logical rule to select what algorithm will be used for the next block based on what algorithm was used for several previous blocks. That would make it especially hard to effectively utilize an ASIC to mine such a coin. Prior to the hard fork, Swagbucks used Scrypt with a high N factor (high memory use to hash), which worked to make it ASIC resistant until ASICs with external memory like the Rockchip RK3288CX ("Jameson Hasher") came along.

[@patriqcnewman275]

How much

[@stevenc22]

Why not just buy the LifePO4 square blocks? They stack without holders.

[@JulianIlett]

I have some prismatics on order :)

[@UpLateGeek]

Good to see some progress on your solar crytypo mining operation. I think this is really the best way to do it, and hopefully you'll be able to pay off your investment in parts pretty quickly once it's in full swing.

[@JulianIlett]

Thanks. Once I've got these Solar Crypto Accumulation Machines (nobody has commented on the acronym yet) working autonomously, I want to put a bigger system somewhere sunny - maybe southern France. All part of my grand retirement plan :)

[@UpLateGeek]

@@JulianIlett Ah yes, and of course you wouldn't want to leave it unattended, so you'll just have to move there too! Or at least visit frequently. A good plan indeed!

[@JimDijkstra86NL]

Hi Julian, Long time no see for me. I am looking for a device with the combinatie of later version long range bleutooth + heart rate monitor + location(gps) pedometer (optional mic and / or (micro)used-car slot)

[@MagicSmoke11]

Hi Julian..tell us more about your "Solar Accumulator Crypto machines" please ! :)

[@antibrevity]

Unless you're joking, he's got lots of prior videos about them. They aren't for making money, but for making heat in his shed. It's highly improbable that they'd ever pay for any of this stuff ;) .

[@2pi628]

Looks great!

[@piconano]

I'm shocked that you don't have a digital caliper! I have 3 and use them all the time. One lives permanently beside my 3D printer room. One on my computer desk, and one on my electronic workbench. They're so cheap and well made, why carry them around? If you model plastic replacement parts in Fusion360 for 3D printing, you need one.

[@Droidy77]

Digital calipers are wonderful but I like the idea of a plastic ruler for poking around high current battery terminals.

[@piconano]

@@Droidy77 He was measuring the plastic holders to find the center to center of the holes, wasn't he?

[@casemodder89]

with cheap digital calipers you should order a shit ton of buttoncell batteries as they drain in no time just from hanging around.

[@andymouse]

This is all very cool indeed....cheers.

[@yodab.at1746]

A 'SCAM' machine. Brilliant, I'd nickname it 'Boris'....

[@hi-tech-guy-1823]

7:04 I thought about a Soil (foul) water pipes 3 meter 110m with 2x 110mm screw cap ends (Srewfix) - Plastic Deck Garden Storage boxes - 19" Rack Cabinets and server & Network cases (on wheels) + 19 Rack Flight case Racks & Deck boxes (on wheels) and Adding usb Heater matts + Fire resistance foam ( No Nonsense Fire Rated Expanding Foam Gun Grade 750ml (90589) (Srewfix)+ Autiomatic Tube Seeking fire Extinguisher (FireFlex - FireTrace (uk) brands ) Fitted and embedded Interlinks Connectors - neutrik 8 + 2 Pole XLR Chassis Connectors - Powersafe Powerlock 400A & 800A - Veam MOVE-MOD. Power, Signal and Data - ShowSafe 19-pin-connector

[@tretty]

how many years will mine until you break even for the cost of batteries?

[@StephenBelcher-k6p]

Hello Clive😂❤

[@philipdesborough9783]

love your crypto ideas I to self installed solar on my work shop with a grid tie inverter so dont get payed for return to grid so used you idea to wake a computer up and start mining if solar gets above 400w also shuts it down below 400w all done from home assistant. I will keep watching to get idea on how to store the below 400w of power. Thanks for years of great content.

[@Daniel_QC_USB]

Cool

[@thinge27]

Nice vid Julian. Pitty the seller raised the price after publishing this video to 151,25 Pounds

[@Porama6400]

seems like a few people have tested and confirmed that dislike video is working on this video.

[@JulianIlett]

Some people dislike it when I get freebies and other people dislike it when I pay for stuff. But any engagement is a win :)

[@RAL2010]

I dislike my reply

[@SteveHodge]

If you make up a 8s4p with 32 cells you'll have 8 left which will make up a 4s2p. Not a 4s4p.

[@thewhitefalcon8539]

Why couldn't you screw the batteries end-to-end? You said flex. So what? If it becomes a problem, just add some mechanical reinforcements in the middle as needed, like foam spacers, or plastic "beer can cages" like you already have at the ends

[@davidrobertson1980]

Speaking of magnetism, you're not very magnetised to your messenger are you? lol

[@nigelgilbert8820]

I see the seller has put the price up to £125. Coincidence? I think not.

[@PetRatty]

please just get yourselve a charge controller, I have a spare Epever 2210A if you want it

[@JulianIlett]

I have a charge controller on order :)

[@mr.makeit4037]

These sound so interesting. Wow and no welding of nickel strips. Are they high discharge or capacity cells? Wonder how they stack up against 18650s? Also I noticed that many of your projects are related to crypto currency mining. That is so abstract to me. Don't understand how that works for the life of me. Great work. Keep it up sir.

[@JulianIlett]

The seller reckons 18A continuous - that's 3C. Kind of midway between discharge and capacity. It took about a year of fairly intensive study to get my head around cryptocurrency :)

[@mr.makeit4037]

@@JulianIlett thanks for the reply Julian. I was just talking with my elderly father about crypto currency yesterday and his interest in it at 83 hehe. I'm building batteries now and will look into these 32700 and 32650 cells. Many like the 18650 require weldable tabs, but those with bolts really are appealing. Thanks again my friend. Most interesting videos.

[@keithking1985]

good price. i asked how muck they were on your newest video. if you see this you can ignore that comment?? thanx

[@MarzMeza]

these cells don't ship around the world :(

[@LightVortexMatrixStudy]

Yike 40 wow let's see what a step up with 100 will do... 😈 I have a 100kv 200ma HV work bench. I'm wondering what kind of (Safe) trouble I can get into....

[@JulianIlett]

High voltages scare me. Sorry I deleted your previous comment thread - I thought it looked like over-unity stuff.

[@LightVortexMatrixStudy]

@@JulianIlett Don't even know what that is. Did you see the n52 Magnet experiment with the polarization anomaly. Sorry man I'm just some guy like you who did alright and is blowing money trying to learn the truth. Which obviously their lying to us about. To give us something so beautiful as Physics and hide some of it. It's just... like an impossible situation for me. I have to know. You understand, I just have to. Anyway no worries. I did find a cut open wass scepter. What was inside left more questions than answers basically. I'm starting to understand why they hide this stuff. But still I won't stop learning how our realm works. Good luck man. Just don't stop what you're doing please. It inspires children to look with their own eyes. It's what the world needs. Thanks.

[@davey2k12]

I want some for me bike ffs

[@andredejager3637]

this animation explains shows how the nut version works kzbin.info/www/bejne/q5yZlJykaK6Eh5o and also has a pcb

[@matsv201]

So that would be 4s10p for £200... so.. 12V 60Ah..or about 800wh.. so about .$250/wh.. that is.. well. Not expensive, but also not super cheap.

[@JulianIlett]

Welcome to the UK ;)

[@matsv201]

@@JulianIlett but didnt you import them?

[@JulianIlett]

I bought them from a UK seller. I presume he imported them.

[@matsv201]

@@JulianIlett yea.. the price gradient for bulk products is usally very low.

[@jasonlee3247]

Total outlay on solar panels, cells, control electronics and miners = £3000. Total earnings from mining = £8.32 😜

[@andyfumo8931]

The price of these has come down considerably

[@michaelkaliski7651]

Realistically and assuming a ten year life span for the equipment, there is no way that such a system would even begin to pay for itself at a few cents per day. Investing the same amount of capital over ten years would under most circumstances be expected to at least double your investment. Investing directly in crypto currencies, while very high risk, could see your investment portfolio grow exponentially over a decade. Horses for courses.

[@afdzalabdmalik4612]

At full charge what is the voltage?3.65V?