Charging a battery bank with a Victron 15A

[Plecoptera]

I have 5 x 12V100Ah LFP batteries connected in parallel via a 300A busbar. I want to charge the whole bank by connecting a Victron IP65 12V 15A charger to the busbar. The LFPs are in their winter home in the crawlspace where the temp is a fairly constant 64F, and this would be done probably when the voltage on the bank drops to below 50% in January or February.

I could disconnect each battery from the bank and charge them individually, but it seems at least theoretically that just charging via the busbar should accomplish the same thing.

Opinions sought.

 

[Lt.Dan]

Sounds good to me. Shouldn't have a problem charging them all at once, its just going to take a while to charge 500ah with a 15a charger.

 

[Plecoptera]

Thanks. Got most of the winter, they just have to be ready by April or May.

 

[rmaddy]

You have 500Ah of battery. Let's say they are down to 200Ah (40%). You need to charge them at 15A. 300Ah / 15A = 20 hours. No need to start charging months in advance.