Consists of a BG12 battery guard and a PAC-200 relay. Designed to isolate the primary battery from the secondary battery, protect the user from battery failure and prolong their battery's lifespan.
- Disconnects the second battery when voltage drops below 11.6v
- Gives you visual indication of a bad charging system before you get stranded
- Switches aftermarket power between main & secondary batteries
- Maintains charge on both batteries
- Insures the main battery is never depleted
- Requires no alteration of the vehicle's wiring
- Works with most secondary battery installations
- Great for isolating two different brand or age of batteries
- Prevents a dead starting battery when listening to stereo with engine off
- SPR-200 Instruction Manual
