A solar system will provide steady state charging which should prolong battery life also. Running a genny for short periods of time as you are doing now, or charging from your truck, are only providing a surface charge.
Battery life is related to depth of discharge and time before fully recharging.
Not only is solar "set it and forget it"...solar should save $ in the long term.
We are running (2) GR 31 6V AGM's and a 100W Zamp system. We are not huge power consumers and this set up has proven very robust and care free for us.
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