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I have built a two large solar panels that are producing 12 volts and 24 amps with that much power running into my battery bank do i need a voltage dump?
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No. Only wind or hydro, that needs to keep a load to prevent freewheeling and excessive RPM's need a dump load.
Solar can be safely disconnected when the batteries are full. Usually a 3 stage charge controller (PWM or MPPT) will do this automatically for you.
Trying to manually use a voltmeter and disconnect batteries when you think they are full, will give disappointing results.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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