Thor Forums

[Long & Winding road]

About 4 months ago the factory 12 volt "Harris" batteries gave out ( So at 11 mo old CW + Harris would not replace or give any credit for them). But we all have heard about these OEM batteries before. So I knew I was going to install TWO 6 volts from what I been reading on our forum but with my limited space it was hard to fine one that would fit.

I ended up finding Full River AGM batteries that fit perfectly under my steps on my 2017 Axis motor home. Most of the AGM’s I found (any brand) were shorter than their lead acid counterparts but AGMs will cost you more but hopefully will last longer.

Full River Model # DC 220 – 6 (220 amp hour – 6 volt).

So I pulled the trigger and I love them (so far). It a Very tight fit and hard to manhandle into such a tight spot by myself but it can be done with no mods.

The old batteries (12 volt deep cycle) weighed 46 # each (water levels were all full). New ones are 73 # each! So they are 54 # heavier over all. I checked the battery bracket and no signs of problem (It’s the one thing Thor did right – lol).

So when I replaced them I installed a battery cut off just In case I needed it down the road and I also installed a pigtail for my new Smart Charger (which I will use this winter – right now I run the RV almost every weekend). I think this will work better than the factory charger – esp for AGM’s.

I have not had must time to truly test them but I can tell right way they are much better than what I had before. I can leave some interior lights on and radio/TV for 2 hours + and they still show full on the gauge (the old ones (when still good) would show ¾ full). It might be in the fall before I can truly test them since we run they genny all the time right now for the AC.

I like the fact they are maintenance free and will work well with my future solar install.