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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...

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...