When getting our new-to-me Granite Ridge ready to travel, I found that the battery box has had a hard life.
It's fairly rusty and there are indications of battery outgassing. I checked the battery (dated 12/2010) and it took about 1/2 gallon of distilled water. I also found that the battery discconect was non-fucntional (5A fuse is blown).
So clearly the life of a battery in this thing has been hard and short.
I replaced the battery and started looking at how it charges. It seems to charge to 13.6v when plugged in, which is a fairly high hard charge. It holds there, and it's probably high enough to eventually boil the battery acid, which is why my battery box has done so poorly.
So off to discover if we've got a smart charger or not:
Under the bed, there is a cover panel. Removing that panel you'll find the converter (battery charger), inverter, and power distribution.
The converter on our motorhome is IOTA DLS-45. Searching the interwebs, I find:
1) This is a great clean 12v power source.
2) It's a dumb charger. It either charges at 13.6v or 14.2v, depending on setting. It will overcharge if left plugged in long enough.
Here's the good news, Iota makes a module to make this a "smart charger" and it just plugs in. No replacement of the inverter. The part is called an IQ4 smart controller and it's about $25....