
Average Reviews:

(More customer reviews)This set up has already saved us from a dead main battery. Separates the secondary (stereo power) battery and saves a call for a jump.
I think we need one for our other show car too!
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Product Description:
Switches aftermarket power between main & secondary batteriesMaintains charge on both batteriesInsures the main battery is never depletedRequires no alteration of the vehicle's wiringWorks with most secondary battery installations
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