Jump ahead a few months after having the new OEM battery dying out. They put a third battery in the car. This third battery died and lost its juice. Eventually, they realized the problem wasn’t the battery but something in the electronics. I brought the car in, and they couldn’t figure out what was wrong… 15 days in the shop. I had to resort to my JNC770R jump back because my car would stop dead at any time while on the road. I couldn’t continue to leave the car at the dealership. The car worked fine for them.
Toyota had a theory what could be wrong but every time I brought it in, they couldn’t replicate the problem. My JNC770R would keep my battery up and running for about two days and then I would have to jump start all over again. Eventually, I had to have the car fail at a convenient time and have it towed to the dealership where they finally pinpointed the problem, something about a DC to DC converter problem. That is my story with my jump pack.”
Steve
Swanzey, N