Battery Chargers

[Joe Ross]

Originally Posted by slijin

While doing some browsing, I also came across this option, which says that it can support up to 6 batteries at once, and the spec sheet says that they have to be charged in parallel from the charger's single output - can anyone offer some insight into how exactly this works and whether it's a viable/safe option for us

The problem with charging batteries in parallel from a single output is that each battery is in slightly different condition and state of charge. They try to work around this by giving the following conditions in the manual. I don't trust that you could ever guarantee this, so I don't think it's safe.

BatteryMINDer 12248 maintenance charger
Desulphators can be used to maintain up to
six (6) 12-volt batteries at a time, providing each
battery is fully operational (no dead-dying cells),
free of sulphate and meeting the minimum full
charge “rested” (see pg. 9) voltage of 2.13 volts
/ cell, after being fully desulphated.

Additionally, notice that this is only to maintain the batteries, once they are fully charged. It won't charge 6 batteries.