On our last trip we discovered the house batteries had gone dry during storage. They were on charge (coach plugged in) After we filled the batteries with fluid they still did not allow us to go to b...
Water batteries weekly? That seems crazy unless the charger is over charging the batteries and boiling it out. A Progressive Dynamics (PD) charger will not harm the batteries plugged in full time. In fact it cycles as needed to keep them healthy.
I never added a drop of water in 17 years (with new battery about every 6 years).
If the OP has a cheap converter it would be money well spent to swap it out and continue using standard inexpensive batteries.
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