Quote:
Originally Posted by that_guy
I've bought the $10 multimeter from jaycar and measured the voltage of the battery on its own. its more or less 12.5V, havent gotten around to the mount or the dew controller. I have a couple of other batteries I might run my mount off of and see how that goes.
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A good battery should be holding a higher charge than that. Typically chargers will pump over 13V into the battery and it should hold (unloaded) near that point. If it is rapidly falling off and down to 12.5V i would be considering a new battery. If you get below 12.6V under load you have too much load or the battery is failing. I never run a battery below 12.6V, it will kill them pretty quickly, even deep cycles. Measure your battery voltage under load.