Review on Efficient Battery Saver: Koolatron F70110 12V in Sleek Black Design by Djuan Thompson
Saves battery power as advertised
I bought the Koolatron Battery Saver because my car's 12v outlet is always on. I use the outlet to power my dash cam and phone charger and I don't always forget to unplug them, which leads to premature battery failure when the car is left idle for several days. Koolatron comes to the rescue: it only turns on when the engine starts and turns off automatically until the battery dies. Now I don't have to worry about leaving things plugged in knowing it will save my battery. It's also a quality construction with long, thick wires and red/green indicators. Excellent goods.
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