BatteryMINDer210-AY SmarTECHnology Multiple Battery Charger Connector – to Be Used with BatteryMinder Chargers

Will this work with batteryminder model 1510 to maintain & desulfate two 12v batteries (under hood & house-motorhome) or 2 motorcycle batteries?

if I have 2-12 V batteries wired in parallel do I need to separate them before using the splitter ?

Can i use this connector with a 24 volt charger and connect it to the quick connectors on each battery?

If I have 5 12v batteries to maintain, how many splitters do I need, 4 splitters?