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Here's a pic from one of them.

Any chance I can convince you to share the results of your hacking of the ANT BMS? Do you have a simple IDD you have slapped together (chicken scratch would be fine). I'm living & working in the 3rd world and have very limited time for my own solar "hobby" so if you've hacked the ANT (I have 3...

I searched the forums here a bit before posting; if this has been asked before and I missed, my bad. Is there a nice BMS platform with open source code that supports 48v systems? Ideally I'd like to be able to use it for 12v also, but I only want 1 BMS per system (so that nifty Electrodacus...

So here's a useful chart that Will referenced in one of his videos about how to extend the life of your LiFePO4 batteries. Case 1: 75–65% SoC offers longest cycle life but delivers only 90,000 energy units (EU). Utilizes 10% of battery. Case 2: 75–25% SoC has 3,000 cycles (to 90% capacity) and...

Yes, if you connect panels in series, and 1 is shaded, they all will act a they are shaded. If the voltage is high enough on your panels, you can connect them in parallel.. Panels with equal voltage (or close) connected in parallel will sum up their amperage. You can also do 2 at a time in...

I'm super stoked about these cells. I hope they still have inventory when the lockdown ends here in 18 days.

I asked a seller about this. Here is a picture from the manual showing how to change the bulk and float charge.

Yeah you're right; In my experience Alibaba lists the credit card fee separately when you check out though. It's not tacked on as an extra itemized fee by the seller. That's why I think it's the seller trying to push their alibaba fee onto the buyer in addition to what Alibaba takes from the...

You haven't attached the temperature probes so your BMS is showing -30 C, this will trigger low temperature cut-off. You need to either connect the temp probes or set the low temp cutoff to something like -50 (I did this on 1 ant I have that arrived with a crushed connection port for the temp...

Hey I don't think you can conflate rail/boat as one thing since one goes through Russia which has considerable lockdown controls in place right now not to mention there's only 1 rail so it's totally FIFO operation and surely there's lots of backlog post Wuhan flu, whereas shipping by sea is a...

Sorry that happened to you, that stinks. Will regularly gets refunded on ALiexpress when capacity of cells are not as advertised but that's Aliexpress; a little different than alibaba. I found aliexpress quite reasonable when I received merchandise not up to par. I purchased 5 pieces of...

I think they may be different companies, just both are located in "Dongguan." I have absolutely nothing to base that on though haha...

So I'm gearing up to jump in to LiFePO4 and as I calculate and estimate and my spreadsheet gets bigger and bigger, I'm wondering, how real are the charge / discharge efficiencies I read about online? I'm looking to put together a 48v system; where my battery bank will stay between 25% and 80%...

Yes of course, I meant voltage variations on cells. I think I read another person's post about the Daly smart BMS being wrong on cell voltages and in my tired stupor applied this conversation... thanks for checking me. definitely a duh moment.

Yes, of course, but why did they put this in? I'm only speculating what the programmers were thinking. By "holdover from lead acid" I mean the way many folks think of lead acid. Yeah that's ideal, but not with closed systems. Folks and tech often rely on voltage levels with Lead Acid, AGM...

Isn't this one that can't do 48v systems though? I may be confusing it with another model.

I'm glad @LukeVader discovered these aren't really EVE cells. I'm about to make a huge purchase of them (for me over here in the Philippines I'll be borrowing to do it), and learning that this company is misinforming customers about something (not blaming the beloved "Amy" who may just be...

There are no charts you can believe; each system is relatively unique. I put some values in mine but noticed the BMS seems to ignore them (perhaps? I didnt spend a lot of time on it). If you want to put them in there anyway, maybe you have a different version of firmware that will use those...

was this ever resolved? Do you really have 22 cells? I'm very curious about your system if you don't mind sharing what inverter you are using what's the system voltage etc.

I wasn't sure if the BMS forum was the right place to post this or not so feel free to move it admins. So I know Will is now recommending to NOT use low voltage disconnects in conjunction with Dc-AC inverters. I plan on running several DC fans and lights directly from my battery and I'd rather...

There is a setting in the BMS where the user can customize what constitutes "too high" in differences between the cells. You might want to try messing with that; increase it substantially for the test. Make sure to click <set> and then <save> If still no difference I'd click <reboot> after...

Good detective work!

Was this ever resolved? OP. can you report back to us what your action was? ANT is one of the BMS's I use and since the documentation is non-existent I try to learn from others.

55% of the time :) Watching WIll's video on extending longevity convinced me this is the way to go.; if I could get it down to staying in between 25%-75% they'd theoretically retain 90% capacity after 9 years. Batteries have ticked me off for so long on how wasteful they are, especially the...

Indeed, these are only lab tests and real world will never be as good as these. I think it's mostly useful for seeing the degradation that can result on the outer limits.

Right this was the kind of thing I was thinking might be an issue. But a 15s would be fine right? With a range around 48v-54v ? I was actually concerned also about the opposite end of this, a 16s battery's effect on cheaper inverters / charge controllers with range around 51.2-57.5 (I realize...