when should a powermax pm4b drop into float mode

jrnymn7 wrote:
would charging a 215a/h bank with a 75amp charger be o.k.? i've read various numbers... c/10, c/20. etc. i would think the batteries would limit the current, either way.

See my ugly graph of 70a on 220AH. Perfect.

Did you modify the 75amper? Does it still work? :)

Splitting the bank and alternating which pair is working and which is getting topped up is a good plan IMO. In winter you can use all four at once as required for furnace etc.