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**sourdough** · 10-13-2019, 10:04 AM

If you've had the trailer for 9 months letting things run, especially the furnace, and discharge the batteries repeatedly, without any maintenance, refilling the water etc. I would bet you just need to buy 2 new batteries and begin a regular mtce. program for them.

As John mentioned, you can have them load tested at a local parts store but even then, not knowing what kind of mtce. has been performed, the performance of the batteries may have been compromised and they can still test OK from my experience.

10-13-2019, 10:04 AM	#3
sourdough Site Team Join Date: Feb 2014 Location: W. Texas Posts: 17,692	If you've had the trailer for 9 months letting things run, especially the furnace, and discharge the batteries repeatedly, without any maintenance, refilling the water etc. I would bet you just need to buy 2 new batteries and begin a regular mtce. program for them. As John mentioned, you can have them load tested at a local parts store but even then, not knowing what kind of mtce. has been performed, the performance of the batteries may have been compromised and they can still test OK from my experience. __________________ Danny and Susan, wife of 56 years 2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10 2020 Montana High Country 331RL