Seller notes

CTEK SMARTPASS 120 Description SMARTPASS 120 (Part #40-185) is a fully automatic 120A power management system that prioritizes, controls, and maximizes energy from your alternator to power your service battery. It safely separates your starter and service batteries automatically. It also distributes power between the starter battery, the service battery, and onboard equipment without the need for traditional diodes or VSR relays. This means that SMARTPASS 120 can make sure that critical function...

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