BFL13 wrote:
Ok, that explains a lot! The wire from the Trimetric shunt to the neg batt post has to carry all the amps from everything that is turned on at the time. It has to be the fattest shortest wire in the set-up. I use 12" of #1. This lets me run the microwave when the furnace is on or whatever.
You can also run the PM's wire's over to the inverter's terminals if they are close together, then they share the inverter's fat wires to the battery and the same fuse.
yes, i plan to bump up that wire to 2ga to match the wires going to the inverter
... i never run too much of a load on 110v anyway, as i am limited to 1000 watts / 8amps with the xantrex 1000. the a'c's o.k. at 530 watts, but my cheapo walmart 700w microwave (rated at 1050w) actually pulls about 1280 watts! soooo efficient! but it's o.k for short zaps of less than 5 minutes, as long as most everything else is off. and since i installed the shunt, i haven't put more than a 4a/110v (40a/12v) draw on the system.
the pm's 4ga neg will then go thru the shunt and the (new) 2ga wire to the batts, and its 4ga pos will go directly to the batts... so that should be fine. hopefully that will solve the issue with the pm not going into boost, and hopefully i can get what i need early next week.
oh, and i ordered the gophert cps-1620, so hopefully it won't take too long to arrive... i would like to try out cycling the 2 bank system before the weather gets too cold. of course, then again, even at 65Ah a day (including running the heat), i could stick with the two 215Ah banks and do 50-80's daily... which should only take about an hour with a 75amper.
