and the pump was running at about 5% duty cycle, which is nothing compared to the constant draw of an RV with TV, fridge, AC, lights, etc which surely add up to more than 6A of 120V current. surely a GC2 can deliver 38A no problem right? they run golf carts all day. The pump draws 6A at 120Vac, so 60A at 12V, or 30A per battery, or 38 if you factor in efficiency. I got 4 of them - 2 gangs of two in parallel for 12V 450Ahr. today.Click to expand.yeah that was my thought process too when I first installed the GC2s. The average we look for is 25 amps to an ending voltage of 9 volts in an hour or more, at a temperature of around 77 degrees.įor more information about how to test an AGM deep cycle battery in Houston, TX, contact Texford Battery Co. There should be specifications with a scale stating the amperage rate you need for a certain time at a certain voltage. Check the factory ratings to determine the specific discharge test you’ll use. If the charger indicates a full charge, you can remove the battery. If you wish to perform a deep cycle battery test beyond the standard testing procedures described above, know that you’ll need to perform more thorough testing procedures than those that can be done in a short 15- to 30-second test.įor example, if you’re using a 35 amp hour 12 volt battery, you should check to make sure the battery is fully charged with an automatic industrial charger designed for AGM batteries. If the figure remains more than 10 percent below, you’ll need to get a replacement. As with the above method, test again after charging, then retest several hours later. ![]() However, if it’s below that figure by more than 10 percent, you’ll need to charge the battery.
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