[Gordon]

5 years ago when I purchased this coach, it had 4 brand new wet cell 8d's, 2 engine, 2 house. The only charger was the old 75 amp battery burner & no inverter. A year later, when I was ready to hit the road, I added a new inverter/charger & left the old battery burner in place for emergencys. One day I was sitting at a race track, running the genny waiiting for the batteries to charge. I would usually have the batteries merged when running off the batteries as the inverter would shut off long before the battery did not have enought power to start the genny. While my inverter charger puts out 145 amps, it still took a while to fully charge them. In as much as I had the old battery burner doing nothing, I hook it up to only the engine batteries, and now I can recharge quicker.
The original Interstate 8d's are still going strong especially considering the first year it was parked & plugged in to that old battery burner 24 / 7.