Lifepo4 voltage drop recently
- Thread starter Echo Dawn
- Start date
PotusGobbleBottom
Corn Pop was a bad dude.
Yeah, the bms is lying to you and not calibrated. As others have mentioned, it should be a lot more accurate for a while after you finally charge it to 100% actual.
PotusGobbleBottom
Corn Pop was a bad dude.
all good.
PotusGobbleBottom
Corn Pop was a bad dude.
Did current go to zero?
sunshine_eggo
Happy Breffast!
This is noise.
keep charging. The vast majority of charging of 12V LFP occurs below 13.6-13.8V, and the curve is very flat meaning the voltage changes not at all or very little.
Try to keep mental track of how much Ah you've put in.
sunshine_eggo
Happy Breffast!
From:
diysolarforum.com
This charge was the equivalent of a 30A charge for you. Note how it stayed below 13.6V until about 95% SoC. Yours will hit it a little sooner.
LFP full charge @ 3.4V/cell
Thought I'd try a little something on a cheap 12V I've been testing... Charge to 20A @ 13.6V (3.4V/cell), 2A tail current. When testing at cell level and dealing with testers that don't have separate sense leads, lead resistance plays a big role, and I would typically observe cells get charged...
diysolarforum.com
This charge was the equivalent of a 30A charge for you. Note how it stayed below 13.6V until about 95% SoC. Yours will hit it a little sooner.
sunshine_eggo
Happy Breffast!
Checkthisout
Solar Wizard
- Joined
- Nov 14, 2021
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If it's still taking current, that's all that matters.
Checkthisout
Solar Wizard
- Joined
- Nov 14, 2021
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- 4,888
My Daly would cut charging when it thought the battery was at 100%.
sunshine_eggo
Happy Breffast!
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