Ever wanted to be able to power appliances, like fridges, in your 4wd or caravan or RV but don't want a flat battery?
Dual Battery System Key Elements
The system should isolate and protect the starting battery from power drain.
The secondary power should be drawn from a cyclic application (Deep Cycle) battery only.
The system should be capable of bringing the secondary battery to aid vehicle starting.
The alternator should charge the start battery first then divert power to the secondary battery automatically.
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