Battery Life?
For the last 14 years I traveled 5-6 months a year in my truck camper. The rest of the year it sits on the jacks in my driveway. I have a 125w solar panel to keep batteries charged while on and off ...
Forum Discussion
Ramblin' Ralph wrote:
FAfter full charge from solar, it reaches 12.2v overnight (per new charge controller with history function).
Current batteries are Interstate 27DC Marine/RV from Costco.
You're not hallucinating. I just bought a pair of batteries (4/20 manufacture date) from Costco, and can't get them above 12.5V having tried both my solar+MPPT and a Victor smart charger. I even tried a new PWM controller, and it stayed steady at 12.5V....
These will probably go back to Costco, but I think I'll be taking a trip over to the Interstate battery outlet a mile away from Costco to have them take a look at them.
