I bought an old shuttle bus with 2 batteries. One for engine, one for auxiliary lights, passenger door, etc. Bought new batteries. Bought 100 W solar panel and 30 amp PMW charge controller to service the auxiliary battery. Will install corrupt the existing system if I just hook the panel through the controller to the aux. battery? I just want to keep it charged.
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If you have a decent controller that won't boil the battery dry, it will be fine, Beware cheap controllers without setpoints that match your battery.
How does the engine starting battery stay charged up ?Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister
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