I started this discussion in another thread, but decided it should have it's own discussion.
I have a new 12V LiFePo4 batter pack I built from cells and a BMS ordered from BLS batteries on aliexpress. I am charging with the 12V MPP solar LV PIP unit that has a 20A utility charger. I dont have solar set up yet.
The charger seems to shut off when the battery reaches 13.55V. I tried bypassing the BMS to see if this was the problem. I tried changing the float charge value in case this was a problem. Nothing really changed. The battery manufacturer is wondering if it is the charger.
Cells are pretty well matched. 3-4mV difference when disconnected, but show a 25mV difference when the charger is connected. Even when it doesn't appear to be charging.....
The one weird thing is that when it is plugged in it will still say "charging" right below the icon, the charge indicator light is solid which should mean the battery is fully charged.
Shouldn't a lifepo4 battery charge to over 14v? Is this fully charged indicator the charger just telling me the battery is not accepting any more current?
Sorry about the long winded question. Just not seeing things how I was expecting and still pretty new.
I have a new 12V LiFePo4 batter pack I built from cells and a BMS ordered from BLS batteries on aliexpress. I am charging with the 12V MPP solar LV PIP unit that has a 20A utility charger. I dont have solar set up yet.
The charger seems to shut off when the battery reaches 13.55V. I tried bypassing the BMS to see if this was the problem. I tried changing the float charge value in case this was a problem. Nothing really changed. The battery manufacturer is wondering if it is the charger.
Cells are pretty well matched. 3-4mV difference when disconnected, but show a 25mV difference when the charger is connected. Even when it doesn't appear to be charging.....
The one weird thing is that when it is plugged in it will still say "charging" right below the icon, the charge indicator light is solid which should mean the battery is fully charged.
Shouldn't a lifepo4 battery charge to over 14v? Is this fully charged indicator the charger just telling me the battery is not accepting any more current?
Sorry about the long winded question. Just not seeing things how I was expecting and still pretty new.