expected normal voltage drop from load?
Is there a rule of thumb or guidance for an expected voltage drop based on amp load on a pair of 6V GC batteries? I was tinkering in my trailer this weekend and ran a 750 watt AC electric heater off ...
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Canadian Rainbirds wrote:2oldman wrote:
From my experience, 2 GCs are not enough battery for large draws. 4 is better, 6 is real nice.
Even our 4 GCs show a large drop when running our micro/convection oven. Down to low 11s. And they are connected with just few feet of 4/0. We don't run the mw too long!
Typical for GCs. They are optimized for, well, Golf Carts. What is the typical Amp draw per battery in Golf Cart operation? A MW puts you in CCA land, a spec you rarely find in a GC battery.
I ran an 800W load for 1:15 from a pair of 135AH AGM 5yo telcom pulls. The lowest Volts reading was 11.99 with 7ft of 2/0 cables.
HTH;
John
