Batteries keep losing charge

[seasure1]

Recently purchased a 2014 Forest River Georgetown 360DS
Class A motorhome

I have been having battery issues.

Have to mention I found a trickle charge battery charger in one of the compartments so this must of been an issue the previous owner neglected to mention.

First the starting battery will go dead even if the RV is plugged into to 50amp service. The battery has been replaced.

The two house batteries will go dead after the RV is unplugged for two days

Those batteries have been replaced as well with quality deep cell batteries.

Not sure where to start...

[Jyrocharlie]

I don't have any knowledge about your rv. I looked at the forest river site and found this, your converter has to be turned to charge. If it isn't, the batteries may run down. Just a guess. https://s3.amazonaws.com/cd-content....7f944948a5.pdf

[rk911]

starting battery: these are typically *not* charged while plugged into shore power or when the genny is running. they are usually charged only when the engine is running. the previous owner probably used the charger you found to keep the chassis battery charged while in camp. my guess is he was likely parked for long stretches at a time. FYI...you can automate that process, charge the chassis battery while plugged into shore power or when the genny is running by using https://www.lslproducts.net/TLSPage.html

coach batteries: they are obviously not being charged. most likely either charlie is right or a circuit breaker on the charger has tripped. you might try this:

- disconnect the motorhome from shore power
- disconnect the batteries from the cables and wait ~20-minutes
- check to be sure each cell has the proper amount of distilled water. add water if needed.
- using a hydrometer check each cell and determine its state of charge. you might make a note of the charge in each cell.
- reconnect the battery cables and then plug the RV into shore power and let it charge overnight. be sure your charger is ON.
- the next day disconnect the motorhome from shore power
- disconnect the batteries from the cables and wait ~20-minutes
- recheck the state of charge in each cell.

let us know what happens.