[Dannyh]

Thanks for the response. I have a 50 amp 3 bank Charles charger. It is located in a cabinet under the stove top. This appears to be a factory install. I believe there was a second charger because there are breaker switches for both house and engine bank battery chargers on the breaker panel in the engine room, and the electrical schematic in the manual shows a 50 amp engine bank charger and a 70 amp house bank charger. I cannot locate any tell tale signs of where the house bank charger was located. This is what I was hoping someone could point out for me.
The 50 amp charger doesn't seem to be enough for two banks of 3 size 31 AGMs. Any suggestions?