Negative Positive
Title: It works but it will boil your battery
Review: Don't just leave it conected to the battery for a long time. It will boil the battery. Used on a car battery last year and had to replace the battery in the spring because the charger had boiled the battery and killed 1 of the cells. Works great. I have the 12 volt to for the lawn mower and other things. But remember not to just leave it connected and come back in 5 months. You'll need a battery.
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