Class A Gas Batteries- Diehard vs Interstate
The batteries in my Bounder no longer hold a charge and need replaced. Do you guys recommend Diehard or Interstate?. It has 3 year old Interstates in it now (1 chassis, 2 coach). I have two deep cycle...
Forum Discussion
You can Google 'disadvantages of parallel batteries' and find supporting documents. I will add that over the decades I have replaced many RV batteries (6 and 12 volt) and the ones I removed never had the same remaining capacity and although they were originally installed new together, one is frequently still usable in a lesser capacity as a tractor battery or such. The point is, parallel batteries have the self-discharge issue as they age which is not the case with series battery installs. Expecting two batteries, although identical construction, to age exactly the same throughout their entire lifespan isn't very reasonable and as soon one loses some capacity over the other, the self-discharging begins.
