Just in case you didn't know... 12.2 resting voltage is about the lowest you will want to go with anything other than a true deep cycle flooded battery. Any lower will kill the battery quick. Also you should charge it up every chance you get. Leaving a battery partly discharged will lead to sulfation.
You might want to invest in some more batteries which will allow them to last far longer especially for long trips.
I strongly encourage you to read up at
Battery University if you have not done so.
Quote:
Lead-acid does not lend itself to fast charging. Typical charge time is 8 to 16 hours. A periodic fully saturated charge is essential to prevent sulfation and the battery must always be stored in a charged state. Leaving the battery in a discharged condition causes sulfation and a recharge may not be possible.
Lead-acid does not like deep cycling. A full discharge causes extra strain and each cycle robs the battery of some service life.
Absorbed Glass Mat Batteries (AGM)
Cannot be stored in a discharged condition - the cell voltage should never drop below 2.10V.
Allows only a limited number of full discharge cycles - well suited for standby applications that require only occasional deep discharges.
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Alternatorless driving will pay for itself as long as you treat your batteries well.
Cheers.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.
