Cole Hersee’s new Smart Battery Isolator prevents loads on the auxiliary battery from draining the starting battery, and it’s different from traditional isolators as it’s not specific to an alternator type. It’s also said to be smaller while generating less heat.  Because it reduces charging system workload by not connecting to the auxiliary battery until the primary battery is charged to 13.2 V, there’s less strain on expensive charging components, the maker says.

No diode efficiency losses occur when using this isolator, and it also allows bi-directional charging from alternator or from other power chargers/converters. It also features an LED status indicator and operational start assist.

The Smart Battery Isolator is available in 85A and 200A versions.

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