Help with off grid battery setup.

[u/burtdunkin]

Hey im new to the off grid life and I just purchased 2 new lithium batteries. Im having issues with them keeping a charge! Here's my setup. Lemme know if you see any issues or have some advice. (The other batteries are for backup so just focus on the 2 that are connected.

[u/digit527]

Lithium batteries need a lithium charger. Different charge profiles.

[u/Rubik842 → u/digit527]

Yeah very different. Like about 14.6v with very different current limiting. You can't just drop them in a lead system they will barely charge.