battery isolator

[RangerDangerV2 5,000+ posts]

So i need to run two extra batteries for my system- audio, led's, etc... Should I invest in a battery isolator and if so what type????

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[mast240 10+ year member]

If you will be running 12v batts, no need

 

[sacsking916 5,000+ posts]

If you will be running 12v batts, no need

or will you be running the car for long periods of time