Batteries losing charge while in storage
My four six volt AGM batteries are losing there charge while the trailer is parked in storage. I disconnected all the wires from the positive terminal but still find them slowly discharging. In a se...
Forum Discussion
smkettner wrote:Thanks for your response. I have 600 watts of solar but am under a roof. I am losing about 15% of my charge every week and the batteries are a year old.
If the pump has a direct switch it will not be draining the batteries. If it has an electronic control or relay then anything is possible.
Otherwise AGM will still self discharge 1% or 2% per month. I suspect the battery may not be fully charged. The surface charge may give an illusion of full charge. Really needs to be held close to 14.5 volts until current drops to about 1/2 amp or less.
Another alternative is to add 60 to 120 watts of solar and a good controller.
