Negative Positive
Title: Didn't work for us.
Review: The Koolatron Battery Saver did not work for us. Although we already knew our car would still start after 4 hours with the Koolatron cooler running, this is probably too long. We wanted to keep the cooler running for stops on the next road trip, but to shut off before the battery got too low. We tried 2 of these units in 4 different cars, and the greatest time the battery saver would allow the cooler to run was about 4 minutes after shutting off the car engine. The "at rest" voltage on the 4 car batteries ranged from 12.1 to 12.8 volts. We did discuss this issue with Koolatron customer service, but didn't come up with a satisfactory solution. We did like the fact that Koolatron does have someone to talk to without a long wait, which is rare today.
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