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oops hit enter to soon. during the second capacity test the cell did even out and during the recharge it became out of whack near the end. did you have any suggestions on correcting the out of balance cell?

Thanks for your input. i did notice the one cell out of whack. but i noticed that during the second test, it evened out with the others.

Good day all. I just received a 400ah battery from china and want to get an accurate capacity test as lifepo4 batteries bought from china can be a hit and miss sometimes with respect to getting what you paid for. I bought a capacity tester, (attached pic), and did 2 tests but I'm questioning the...

Hi Shep. I came across your post regarding your capacity test and thought I'd piggy back off of your experience thus far if you don't mind. I just received a 400ah battery from china and want to get an accurate capacity test as lifepo4 batteries bought from china can be a hit and miss sometimes...

and for the record, the charge status of my battery when things shut down with the 10a charger was about 40%ish.

Thanks for those tips LH. I will implement them for sure. To answer your question, (now the possibly embarrassing part), the charger is an old lead acid type charger as I mentioned. I had the charger at the low setting which I assumed would be 2a. Once I initiated the charging process, I saw the...

And the charger is putting out 9.76v

I forgot to mention that this is a chinese purchased battery, so no brand name.

Hello LH. Good questions. Standard charger was referring to a standard regular battery charger without a LI option. I've been charging the battery for the last couple of days with a standard 4a charger. There aren't any error or warning codes on either of the 2 BMS apps I am using to monitor...

Good day all I’ve recently purchased a 400ah lifepo4 battery and and when I put a standard 10amp charger on it the BMS shuts down the battery for a minute or so and then opens up to accept the charge for about 5minutes. It kept cycling like that before I went to a 4amp charger and the battery...