Official Answer
When charging multiple batteries connected in parallel, it is possible to charge with a single charging bank, but it is not suggested.
We suggest having a separate dedicated bank on the charger for each individual battery. This gives the batteries a more consistent & equal charging cycle.
For example, two (2) 24V 60AH batteries wired in parallel to produce 24V 120AH output would be charged by a two (2) bank charger with each bank of the charger outputting the appropriate 24V output voltage and charge profile for each battery connected in parallel.
Answered by Odin
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