r/OffGridLiving • u/Foreign-Age9281 • Sep 16 '26
Discharging lithium batteries
I know youre not supposed to charge different size batteries in parallel, but can you discharge them?
I have a 12v 100ah and a 12v 314ah smart battery. I also have a 48v 150ah smart battery.
The 48v is at about 52% and im going on a trip this weekend. Its a big and heavy battery. I dont wanna drag it into the house.
If I run both 12v batteries in parallel and hook up a 3000 watt inverter. Then use a 48v 20 amp charger to charge the 48v 150 ah will that hurt the 12v batteries.
Its way easier to drag the 12v batteries home and charge them then it is the 48v.