Cole Hersee Co.'s Smart Battery Isolator 48525 and 48530 can prevent draining of the starting battery by not connecting items to auxiliary battery power until the primary battery is charged to 13.2 ...

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 ...

In this video, I demonstrate how to fix a parasitic battery drain by installing a battery quick disconnect or kill switch. US ally suspends purchase of 20 F-16 jets The 4% rule is now the 4.7% rule.