GB40 Battery Jumper Is Dead

GB40 Is Dead

12/20/2019

4 of 5 people found the following review helpful.

GB40 Battery Jumper Is Dead

I’ve had this battery for a year and have not used it even once. Yesterday my friend’s car battery died, and I brought it out to help her and it was off. Now after charging for a day and a half, it’s not really holding charge. If I unplug it, it remains off. Not sure what’s wrong, think I got a defective one.

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