Dual Battery Isolator Heavy Duty 300 AMP 1000 AMP Peak Voltage Sensitive Relay VSR for 12 Volt Systems - Works with All Battery Types Including Lithium and LiFePO4 MCF and car speaker wire

and car speaker wire

By choosing our complete fuse kit

Voltage Sensitive Relay (VSR) cuts in at 13

we offer 14

Making a polarity error could cause serious damage to your audio equipment

Dual Battery Isolator Heavy Duty 300 AMP 1000 AMP Peak Voltage Sensitive Relay VSR for 12 Volt Systems - Works with All Battery Types Including Lithium and LiFePO4 MCF and car speaker wireDo you have more than 150 amp hour capacity of auxiliary battery? Do you need even MORE power and amperage for your additional accessories or inverters? When our standard 140 amp isolator isnt enough, you need the Heavy Duty Keyline 300 amp isolator. Key line Chargers has the ONLY 300 amp Dual Battery Isolator on the market! Our 300 amp Dual Battery Isolator is the BEST charging solution for high capacity dual battery systems. Forget the traditional