Powermax 75 amp converter/charger
I am charging a pair of Trojan T-105 batteries, they were drawn down to 12.38 or 6.19 per battery which should be about a 30 percent discharge. The powermax is only putting out about 13 amps @ 14.68 v...
Forum Discussion
S Davis wrote:Agree, could be part of your problem. 6 ft. of 8 ga wiring to support 75a is certainly not ideal.BFL13 wrote:No but I am using about 6’ of #8 which is the smallest recommended in the instructions so that could be part of it.
Have you cleared up the 13 amp mystery?
BTW, if not fitted now, the wires from the 75 amper should be #4 or you can choke off some amps. I saw that with a 55 amper that did 55 amps with #8 but did 60 amps with #4. Most converters can do a little better than their ratings given a chance.
Northern Lite used 18 ft of 10 gauge wire between the converter and batteries in our camper and it dropped the max charge current of our 45a PD converter down to 18a (bulk mode with 2 GC2 6v batteries discharged to 12.15v). Installed 4/0 and 2/0 cable as part of our 2000w inverter installation. We now get the max rated charge current of 45a with the batteries discharged to 12.2v.
