by TexstarBob » Wed Oct 24, 2007 1:06 pm
A 1.5A charger may be okay if you don't use the battery much, but a good three stage charger even at much higher amperage shouldn't be over charging and boiling water out of the battery.
I have a Schauer JAC1212 12Amp charger and keep it charging constantly when the trailer is parked, whether it's in the garage, or at a campsite. While on the road, I run a 120v refrigerator with a 750 watt inverter connected to my 115ah battery (10-12 hours sometime), and then recharge the battery while I camp. It's always been fully charged by sunrise and the battery looses very little water . . . maybe a cup or so total after 3 months. To be honest though, I've only had the battery and charger installed for about 4 months, and only taken one extended trip since then, so it will take some time to see if this holds.
Bob