Jdw12345 Posted March 12, 2022 Share Posted March 12, 2022 We purchased a 2005 Dynasty ISL last September, it is equipped with 4 6 volt Full River AGM 250 amp house batteries dated 2014, the coach still has the original Xantrex model 2012 charger/inverter and set at 20 amp charging rate. The coach is equipped with a RC7 GS. The batteries are also equipped with Power Pulse ( https://www.pulsetech.net/pp-12-l-powerpulse-12-volt-battery-maintenance-system.html ) battery maintainer’s and also one solar panel on the roof and the coach is plugged into shore power 24/7. The coach is inside a storage building at a constant 52-54* temp. I’m curious as to the longevity of the batteries, yes I could just replace them but I’m also curious as to how much life I can get out of them. I must say I have not been let dow by them on the few nights we spent boondocking with minimal power usage, one sleep machine on all night and a toe rail light on. So here’s my question, if I unplug the shore power and watch the RC7 GS in the percentage SOC mode with the inverter off, I’ve noticed the percentage of SOC drops rather quickly down to the mid to upper 80’s % in approximately 5 minutes, then it seems to stabilize and then the SOC actually starts to increase back to 97%ish and then it holds pretty steady, this could all be very normal, I’ve never really sat and watched batteries SOC so I can’t say what’s normal. Is this normal or is it telling me something I’m not seeing? Thanks in advance! Link to comment Share on other sites More sharing options...
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