6. Can two sets of batteries be charged from one charger at the same time?
It is possible to charge two sets of batteries from one charger as long as certain conditions are satisfied.
1. Both sets of batteries must have identical voltage and AH specifications.
2. Both sets of batteries must be connected in parallel (+ to +, - to -).
The batteries will take twice as long as they would if they were charged individually and it is important that the current delivered to each set is within the battery manufacturers predefined minimum limits. If the charging current is too low, the batteries will never recharge.