DIY Lithium-ion Battery capacity testing

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Thanks for tuning in as always!
Pete
#diypowerwalls #hbpowerwall #18650ed #diypowerwall

[@yankey4]

NICE brother. Hell I am still running 98% of my 120 volt loads 24/7 on just 15 KWH. Thanks for sharing brother. God Bless.

[@HBPowerwall]

Good stuff Thanks for tuning in bud

[@TradieTrev]

Must admit you're an honest bloke!

[@HBPowerwall]

I give it a good hard crack..

[@NazStudios]

A lovely ride Pete. I watched 2 years go by in 3 hours of all 6 parts

[@HBPowerwall]

finally making the final video in the series, actually getting it INSTALLED RIGHT NOW~ lol

[@NazStudios]

@@HBPowerwall Wow, I hope the batteries don't degrade off the charge they've held that long. This video taught me a lot, because you see, I'm Nigeria. Here at home we don't have a steady power supply, nor is it cheap. Also, 2 months ago, after our new president was sworn in, gasoline prices rose by 300% totaling a 1,000% increase since the last 10 years. This makes it more difficult to run portable gasoline generators as has been the norm..... Thankfully, I have recently just became a man (lol) and moved into my own space which I also double as a studio for photography and music recording. (😉that life, I'm the family handy man) I was researching on 18650s for a power solution when I recalled bumping into your videos years back. You know I definitely had to come back to finish what we started. A 2KW inverter should serve my current need. I majorly need it to be able to record music in silence. About 6 hours of runtime will be sufficient since we get at least 8-10 hours of grid power during the day, (I know right? Our leadership system here isn't one that I am proud of). I wouldn't need solar panels for now for budget reasons. I can simply charge when the grid is on. Now you may think that's counter intuitive with regards to electrical billing, but since there's no metering, it will attract no extra cost. I know how dumb it sounds but the grid just serves us plugged‐in figures of guesstimation. If anything I'd be making the most of the huge charges I've had to pay all the while by now having the battery storage. Thankfully, I have the skill and electrical know-how to make such a system (esp. with all the resources out here). Even if it'll be my first DC generator, mine will be relatively small footprint. I did study Electrical Engineering for 3 years before dropping out for financial reasons plus I have a handful of engineering buds. But... I digress. Now all I need is a fortune and the sale of my left kidney to buy the batteries 🤣. For real though, wish I had access to batteries. But even as young and dedicated, small business builders, we have access to zero loans in my country. Its pitiful but true. It pains me that even for someone versatile enough to eliminate cost of labour as myself, I still can't afford the damn project to save my business. Damn, this was meant to be a courtesy reply but I went off the rails. I'm sorry. I was just thinking out loud, I'm just too fascinated by these things. So much so that I just watch other people's build just to live the moment with them. I loved seing your wife and son in the video. It was a treat. Regards, Naz

[@benjaminquinones1890]

Great video buddy! I’m in the process of building my own off grid mining set up. I’ve got 15kwh lifepo4 diy, 1500w solar and some old CPUs mining pennies :) Next step is to build the dc - dc power supply. I was ready to go it alone, but if you wouldn’t mind doing a detailed video on that, I’d really appreciate it!

[@HBPowerwall]

already did a bunch a few years back, i think i linked in description the play list building my battery hasher rig

[@DenfordBerriman]

Thanks Pete, another great video. Any chance of quick summary of what the rules are that keep you from putting that build into service at your place?

[@HBPowerwall]

Absolutely, this article is vague and subjective but you'll get the idea renew.org.au/renew-magazine/solar-batteries/new-battery-installation-rules/

[@richardriehle4159]

i'm glad you asked the question since i was wondering the same . and then for pete's answer.

[@MiniLuv-1984]

Yes, that would be good to know.

[@DenfordBerriman]

@@HBPowerwall cheers mate!

[@HBPowerwall]

any time @denford

[@markbryant7411]

Bloody awesome Pete!

[@HBPowerwall]

Thanks Mark

[@algharibe]

amazing

[@HBPowerwall]

Thank you

I from to Vietnam ,I like video you.

[@HBPowerwall]

Thank You

[@scottcook414]

Thanks!

[@HBPowerwall]

DUDE - how did you donate the fiver? Thanks buddy!!

[@scottcook414]

@@HBPowerwall There was a donate button and I like buttons, so I clicked it. Cheers 🍻

[@hmarc417]

Just a quicky: What is the max number of longmons that can be on a system, before a second system is called for. ??

[@HBPowerwall]

I think the number is near 250

[@paulbolwell3123]

Nice video Pete, what breaker do you use for your shunt trip in this battery?

[@HBPowerwall]

Its stupid expensive i think 500 aud including the trip (if you can even find them) Its a NHP DIN-T 10H

[@paulbolwell3123]

@@HBPowerwall thanks mate yeah trying to find a good one.

[@HBPowerwall]

I know i have videos other others that work well, just can't find them at the moment. I have one on my big house battery.

[@mreese8764]

Could you install a CO2 extinguisher for each bank, and encase them each? So that a fire does not spread to all cells and the rest of the system. It would be a pity.

[@HBPowerwall]

Might as well just piss on it.. CO2 will do nothing for a chemical fire.

[@eenvriendelijkgebaar]

@@HBPowerwall lol

[@GarageNight]

Thanks for your videos. I have read about the standards that put paid to your project, but what exactly was the deal breaker there? is it explained in one of your videos? The standards seem to be to do with where you locate the system, voltage limits etc. You seem like a persistent and highly competent sort of guy who could have dealt with those issues.

[@HBPowerwall]

Good question! Issues are I don't understand the 'standards' as they are not a 'LAW' so in theory I 'CAN' do it, I believe the issue will arise when someone dies as a result of my work or my house insurance needs to be claimed. Honestly I'm starting to thing I can do stuff just not well enough for me to sleep at night, you'll notice after these videos I started to really slow do big projects for fear of causing issues. Also personal issues but that's for another website :P

[@GarageNight]

@@HBPowerwall Thanks for the reply, great that you're still around and willing to answer questions

[@HBPowerwall]

I try but KZbin likes to make replying to replies much harder than it needs to be :(

[@pjonespresents9843]

Hiya, Love your videos, do you have a video explaining any of the basics, like how many volts you build for ? your 7 packs are 24 volts ? cheers :)

[@HBPowerwall]

Yes I do.............................. somewhere :P

[@1981dasimpson]

you should try nicehash os might be a little more stable

[@HBPowerwall]

It kinda is but it really isn’t because of windows OS. Card was faulty so still would crash on NiceHash

[@1981dasimpson]

@@HBPowerwall yeah i commented befor the point out about the card been dead

[@HBPowerwall]

All good buddy

[@1981dasimpson]

@@HBPowerwall i keep wondering what it would take for an efficient off=grid crypto farm my idea always works it way back to hydro

[@HBPowerwall]

Best way is heaps of solar and just leave it at that. Cost of infrastructure and maintenance with anything else isn’t cost effective

[@xuanthanhtv1744]

tuyệt vời đó đồng nghiệp của tôi

[@MStrickkk]

Apply new thermal pads to that card, and consider switching to another OS. I love simplemining for my 6 card rig.

[@HBPowerwall]

nar it's input issue with 12v on top of card, 10min to find and fix faulty components

[@jameswilliamson1312]

Love your work Pete. What a great way to use energy. Do you charge it again with solar?

[@HBPowerwall]

Thanks James, 99.9% of all charging of batteries is solar. The exception is if there is a severe weather event and batteries are flat, in that case it's all hands on deck and drop plus 10,000 watts into the batteries lol

[@mrgreenswelding2853]

Where Did you get your dc to dc converter?

[@HBPowerwall]

I should add this to description :) ebay.us/mGYYRk

[@UKMrMedical]

Hi I’m wondering if you can help me build my electric motorbike battery ? It’s awd could be a good video ?

[@HBPowerwall]

I COULD.... but..... lol Where you located?

[@AerialWaviator]

That was interesting. Suspense increased, as video progressed. :) You didn't tell us the total amount of cash mined? Was curious how many ¢/kWh were earned. Will you measure how much energy is needed to re-charge the pack back up to 100%?

[@HBPowerwall]

Because of the coin change I’ll round up to $4 usd give or take two bucks 😝

[@AerialWaviator]

@@HBPowerwall Fair. So ~16-20¢/kWh

[@HBPowerwall]

Please don’t force me to math its late ⏰ 🥹

[@wool1701]

I reckon that's a suspicious place to put the breaker but otherwise great video mate

[@HBPowerwall]

it was electrically convenient - and looked neat, there is already a upgrade in place where physical access is only needed to reset it. It can be remotely triggered MANY ways, heat, cell voltage high/low, battery voltage high/low, manual external 'holyshit' button, or fire alarm with relay.

[@coxyofnewp]

So whats the Aussie rules as they stand ATM concerning DIY bats then? Edit - BTW a really nice build.. Congratz

[@closertothetruth9209]

pretty strict here on just about anything pretty much zero diy unless your qualified id guess. i envy my relatives in the USA.

[@HBPowerwall]

Check out this article - it's not 100% accurate and quite misleading in the way its worded but the bones are there renew.org.au/renew-magazine/solar-batteries/new-battery-installation-rules/

[@closertothetruth9209]

@@HBPowerwall what a fluke i pretty much did all of that including the fuses between batteries i only have sla batteries though nothing too technical for my puny brain.

[@HBPowerwall]

Nothing wrong with SLA, A cheap and accessible technology

[@closertothetruth9209]

@@HBPowerwall id love lifepo4 or better, amazing new batteries are coming out, india is doing good things

[@smartazz]

Awesome 😎

[@HBPowerwall]

Thanks bud!

[@darrenwalker9554]

Hi Pete, great video, just a quick question, how many cycles do you get out of a 18650 cell?

[@HBPowerwall]

Well I have got 5-6 years out of my house battery build (with maintance) MIGHT get 10 years out of this one!

[@freeenergy]

Hello there, I’m Elias from Lebanon, you need to test the revo vm ii 5.5kw hybrid inverter from sorotec.... I think it's the best Chinese solar inverter, (software and components).....

[@HBPowerwall]

Nar, can't do it sorry - old aussie government won't like it much..

[@neoben00]

Do you still capacity test each cell? I've been muling over how/if I should capacity test before building my latest 7s30p pack. It's the first time I've built with used high discharge (max cont 10amp) cells.

[@HBPowerwall]

EVERY SINGLE ONE!

[@neoben00]

@@HBPowerwall you don't have a video on a cheap way to mass capacity test do you? I work 5 days a week and a 5 month old so I don't get much time to do it

[@ediongseyeneukpanah6708]

I have a bunch of batteries with different amps how should I combine them for best performance

[@cronos1675]

It's batter not to mix up minimal apms difference won't effect much

[@roxychic367]

Really enjoyed you video has made me think of some good ideas. Is crypto mining any good though, sorry for the noob question..

[@HBPowerwall]

Not at all lol

[@roxychic367]

@@HBPowerwall haha 😂

[@CrankyCoder]

What enclosure is that? i like it!!!

[@HBPowerwall]

Recycled fireproof maps cabnet www.neqtiq-au.com/products/vistaplan-grey-a0-standard-metal-plan-file-cabinet-e09451.html?gclid=CjwKCAjwj42UBhAAEiwACIhADozaBTYRxIJmurhQpYQRNWZsLor1iLJq2RH7wntXx6JE6t1U46RhTRoC8YkQAvD_BwE

[@HBPowerwall]

I lie it's this one draftex.com.au/product/planex-m-series

[@nofiuodunaye1225]

👌

[@HBPowerwall]

👌 x 2

[@OffGridAussiePrepper]

its ok pete, Wranglerstar is the big clickbait king and he needs a shirt fronting like big ears x prime minister said about puttin...lol

[@HBPowerwall]

hahahaha He is for sure!!!

[@OffGridAussiePrepper]

@@HBPowerwall now i finally had a chance to watch ur vid after some much needed sleep, was the monitor powered off the battery bank or did cheat?? and plug it into an ac socket? was the monitor left on all the time? I think u need to do the test again just to earn another 3 bucks..... hahahahahaha

[@HBPowerwall]

I can upload full time lapse of Batrium to show I didn’t cheat lol and 3 bucks is optimistic at best 😂

[@OffGridAussiePrepper]

@@HBPowerwall oi ya bugga.... what about the monitor power???

[@HBPowerwall]

that was plugged into workshop powerwall *(insert winkky face here...

[@terryterry1655]

screen only shows 28 Hash (not Mega hashes)??

[@HBPowerwall]

well spotted...

[@vintilis1]

still you have it 18650 bank cell ?

[@HBPowerwall]

Yep

[@Betofraga]

Me chamo Carlos e moro no Brasil ! Seria possível você me Doar 350 células desta 18650 ? Desde já agradeço !

[@Werdna12345]

Link to project cost in description is broken. Does anybody recall what the cost was?

[@HBPowerwall]

What link was it Andrew, i'll fix it up..

[@Werdna12345]

@@HBPowerwall third link in the description “👍 Total Project Cost - goo.gl/cfLqZf”

[@HBPowerwall]

ooh wow that's in every video lol I'll have to work out a redirect fix after I move the forum. How ever the costing is WAY different now and should also update it.

[@izybit]

What are those regulations exactly?

[@HBPowerwall]

link in the description

[@johannesdesloper8434]

Damn what's the distorsion about? WIFI?

[@johannesdesloper8434]

Oow now guy makes the sun a digital miner. I've been thinking about a self sufficient system of recycled cells mainly to power refrigerator.. Nasty thing..all kinda voltages. Once seen an uninterupted 3 phase power supply. 220V DC motor on batteries drove it. Could be charged continuously. I called it the submarine room. you loose at least 10% mechanic loss and 10% copper loss, the battery. Do not seem to have a good idea yet. If I hwere you I'd really put the batteries in a separate compartment. I still don't trust those cells fire wise.

[@benson8310]

Hello Pete Can any used up laptop batteries do?

[@HBPowerwall]

I only use genuine cells and test every one for capacity left compaired to new, heat, selfdischarge, physical appearance

[@minravex2326]

My name I Ephry....I have been building Small lithium packs for small uses...I was wondering if I can invest in building 100AH and 200AH lithium solar battery for sale...as a brand....pls what tools and skill set so you think in you wealth of experience that I need?

[@HBPowerwall]

I would say if you don't know anything about Lithium batteries, there is no way you should ever be selling it

[@blackops84321]

He has "bat trees" I thought bats live in caves or just any tree.

[@HBPowerwall]

lol

[@ReizungV]

can it handle loads in excess of 10KW ?

[@HBPowerwall]

Good handle sustained 10 kW loads without too much issue.

[@ReizungV]

@@HBPowerwall i assumed so. lithiums are good for high power. But those cables look quite thin for a 48v system. even my 70mm2 cable gets warm to the touch at 12kw.. :)

[@HBPowerwall]

I use fine strand welding cable, 32mm square I believe - holds up well as I don't put those loads on it anyway..

[@xsauce3858]

OffGridGarage build a 40kwh battery bank. how is his legal and yours not ?

[@HBPowerwall]

It probably isn't lol I just care more ?

[@brendanmichaelwelsh6260]

That breaker is in a terrible location....

[@HBPowerwall]

Look I can't disagree, BUT i have a fix for it :P Made a remote one that triggers for a big assed STOP button!

[@garystewart6093]

HBOpowerwall running with the 18650 baton long after jehu dropped it.

[@HBPowerwall]

and I threw it into the crowd because this sort of effort is MADNESS lol

[@garystewart6093]

@@HBPowerwall yes and I caught it too. Yes the effort is huge, much easier to buy one, like pasta bread or growing veggies, but you have learnt and you have inspired me to learn too. I salute your efforts and I too do learn. What you have achieved is amazing and inspirational. Be proud of you long hours capacity testing etc.

[@HBPowerwall]

Thanks bud, comments like this make it easier to keep going - trust me sometimes is a struggle just to open the editing software (the actual projects are fun & educational) I'm in the process of doing another load test but a different way to see if i can get more out of the battery

[@garystewart6093]

@@HBPowerwall you have achieved energy independence you are an early adopter of this a pioneer. More will follow where you are gone. Be proud of your achievements, your toil has its rewards, many people watch and learn from your videos without the comment or like button being pressed. I’m still building my 18650 in a glass fronted shop fridge. Still shopping around for a good bms.

[@HBPowerwall]

Thanks for the feed back, and get the best BMS you can afford at the time.. that M in BMS is important with lithium cells such as these.

[@drc6940]

Who pushes their cells to 2.5 volts?

[@HBPowerwall]

The manufacturer?

[@coolvideos8864]

Mining really aint worth doing anymore is it? not unless you can rip off someone elses power lol

[@HBPowerwall]

You don't mine for today, you mine for tomorrow...

[@user-yh7zc9ke4s]

So they don't have individual battery control? Isn't this 1) ineffective becasue you can not charge each cell for 100% and discharge untill 0 2) dangerous because you can overcharge some for more than 100%, so they ignite 3) going to break soon, because some will discharge below 0% which degrades them very quickly ??? I remember doing DIY powerbank and I've got such smart controller for 6 18650 batteries.

[@HBPowerwall]

1. Who in their right mind would charge too 100% and discharge to Zero? MADNESS! 2. The BMS controls the batteries in many ways monitoring cell voltage, heat etc - with out external forces are applied - these cells are safe enough to use. End user is more dangerous than they are. 3. Hasn't broken yet - sounds like you have no idea what you're on about..

[@johnmirbach2338]

🤓👍✌️👌🖖😎

[@HBPowerwall]

🤓👍✌️👌🖖😎 x onebillion and you had better had your pinky between your teeth biting down softly but with sexy over tones..

[@johnmirbach2338]

@@HBPowerwall 🤣🤣🤣😵‍💫🥸

[@ciaransherry6021]

When this video came up, I wondered about human behaviour. 'Mining' electronic money using electricity is like making water with a dehumidifier. Are people really that stupid?

[@HBPowerwall]

Well I could have just run an oil heater as a load but, I feel that was more stupid? And given i'm using mostly recycled material, its like making water with an old plastic bag and a rock..