5 of 5 people found the following review helpful.

Doesn’t Work After 3 Months

I owned this GB40 for 3 months worked great starting up my ford with the 4.6 engine in it. Last week my buddy bought a car and the battery was dead. I pulled out my GB40 with a full charge and it wouldn’t start his impala with a 3.5 engine (made sure it was connected right). So today I bought a car from auction and it’s battery was dead. GB40 was fully charged again connected it to the battery of the car (dodge Avenger 2.4) and it didn’t start. Lucky someone at the auction had a Jump and carry 660 that looked like it was found at the bottom of a river and it started the car up no problem.