theoldwizard1 wrote:
When your current batteries die, replace then with a pair of 6V golf cart batteries. They hold more energy and will last longer.
The OP hasn't indicated just which 12 volt batteries he has but Group 31s wired in parallel offer roughly the same capacity as a pair of 6 volt GC-2s wired in series.
theoldwizard1 wrote:
If you don't want to buy/use a generator, the you need a DC-DC battery charger to recharge your batteries when you ar on the road.
Agree, it's the only way to charge batteries effectively using the vehicle's electrical system.