Great chart billyrabbit, but as you know these readings are at a full charged battery and as the voltage drops due to useage your amp rate will increase and keep on going up as the voltage drops
I had an Optima battery in my previous trailer. I sold the trailer before I had to replace it. But I can say that I was not happy with the power that it provided. I also purchased two for my pickup, and replaced them in about 3-1/2 years. They say the batteries should last 7. I would not buy them again.
I have a flatbed trailer with hydraulic tilt and a winch. A friend of mine gave me 2 batteries that were used in a Mercedes about 6 years ago. They are still running strong! These are the gel type. I'm hoping he can get me two more for my camper.
Just priced out 6 volt Trojans.
T-145s-----$259.99
T-105s-----$193.48
Starting to think more of putting a solar panel on the roof of the Cruiser. We had a 80 watt on the roof of our Lance and every night when I checked the condition of the battery it was full charge. With solar I could again look at the Optima's. Wouldn't have take them out for the winter. Those 6 volt deep cycles are heavy.
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2008 Cruiser CF26RK
135 Watt Solar Panel
2013 Ford Eco-Boost
Heavy duty payload - Max tow
Robbie, I saw your post about current increasing as voltage decreased, which is incorrect. Current = Voltage/Resistance.A DC motor has a resistance of about 2 ohms so if you have 12 Volts at the motor input you would draw 6 amps (12/2). If the voltage dropped to 6 volts you would be drawing 3 Amps (6/2).
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Bill & Meina
2006 GMC Sierra 2500 D/A
2009 CF31MK
JT Strongarm Stabilizers
Demco Glide Ride
Blue Sky Energy Solar Boost 2000E MPPT Controller