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Your name suits you! I heard this post as soon as you posted it! ?

Their response is too quick. They didn’t take the time to thoroughly investigate. Perhaps it’s multiple problems, not just one. Given their track record..I do not trust a 2hr response unless this was already a known issue. Has anyone seen a recall or announcement for the safety of their...

You're not acknowledging the difference in chemistry. LifePo4 is not NMC. I believe NMC is what teslas use. Lifepo4 is considered the safest of the Lithium chemistries. It does not cascade. Search the forum. There are several examples of lifepo4 fires in comparison to other chemistries on video...

here is all the equipment used in this process, no equipment was harmed in the making of this series. ? second pic is of my power supply naked. update on the charging cell: settled to 3.48v and held. Now saturating to 3.63v (slightest adjustment changes too much even with fine knob). When...

They have arrived. And the unboxing begins.

Hello all, I am new to this forum; however, after scouring several of @Will Prowse videos and reviewing the information held on this site, I just purchased 16 pieces, Lishen 3.2v 272AH battery packs from dongguan lightning new energy technology on alibaba. My total price was just under $1700...

One more note: If I were going to use LifePo4 in your application, I would not replace the starter battery with it. I would add it to the vehicle with a DC-DC charger, and then wire my amp(s) directly to it. That said, seeking car audio advice on a solar forum may not yield the best results...

What is that? Was that the blu etti? Have you been able to recoup any losses? Best wishes.

Precisely my attitude.

It's true. depends on your application. Mine is mobile (in an RV). Flexible to keep stress off the terminals is what I was going for. Edit: Also, I've been over my system with a thermal imager. No hot spots means good crimps. I'll be inspecting it regularly, mainly pre and post travel.

this would be my attitude if I were in a stationary environment, too. I will snug them up in a nice secure fixture and call it done.

BMSs arrived:

Looks like that’s for the AN series. IIRC the BN series is the one Will recommends. I have a couple I plan to test for my system in a few days. I bought a remote panel, too. Makes it easy to program them. I’ll let you know how it goes.

I would be less worried about anal-retentivability ( ? ) and just give yourself a conservative estimate of about 65AH @ 48v. Now you have some padding for that anal irritation.

I used sheets of teflon between my cells. very slick, heat resistant, and non-conductive.

First capacity test of a 12v pack complete. 283AH. I am quite happy. Started capacity test of another 12v pack. Hopefully tomorrow or Saturday I can test my solar equipment by recharging the first pack. Picture shows me putting some juice in, but just enough to keep it comfortably over the 2.5...

Do you mean actually manufacturing the cells, or just assembling cells into larger battery packs?

Second 12v pack completed the capacity test. The pack pulled 284AH. Part way through the test I found a cell off by .2 volts. I stopped the load, disconnected the BMS, pulled the bus bars off the misbehaving cell, cleaned the terminals, checked the voltage, found it to be back in line with the...

Hey, I never said shipping from China wasn’t fraught with more risk, I just never expected STD exposure to BE one of those risks.

We shouldn't be putting blind faith in anything, period. Experts are supposed to be experts because they understand the details and minutia related to a given subject matter. They should also be citing relevant references and source data to support their conclusions, whatever those may be. There...

120v I'm wired for 50a service. L2 is currently capped and unused. All loads are 120v The 4024 is a 4kw 24v low frequency inverter. It has a dual input transfer switch (shore and gen), can operate in inverting, ac pass-through + charging, or charging only modes. It syncs wave forms for...

The rest of the studs arrived, today. All installed.

I'd never keep a farting breaker around, myself. Methane is a fire risk.

have you lightly sanded the terminals then wiped them down with isopropyl alcohol?

well one things for sure, when all is said and done, you‘ll be qualified to work on your and anyone elses’ system....You‘ll be a professional ee and will be out snoobing snoobler.