ok I have relocated the battery from the front of my monte to the trunk, in this I have yet to have a well charging system, I am running a powermaster 140 amp ALT, and a Redtop in the trunk, both check out perfect in removing and haveing them tested at Advanced. I hav upgraded the wiring that powermaster requires from 4 gauge to 2 gauge on al positive and negitive leads. I am running a 2 gauge lead(HOT) from the ALT nut in the back to the starter, and from the Starter, 2 gauge back to the Positive terminal of the Battery. My grounds I have a 2 gauge on the the front of the block to the frame, and a ground strap on the back. In the trunk there is 2 gausge from the Neg terminal for the frame. Ran a test with a voltmeter positive and negitive while it was running, and was pulling 14.2-.6 volts. When I shut it down I still have a dead battery, No i was told I can run the Alt from the stock 3-wire setup to a single wire setup, which I have setup now and still will not charge, I also tried connecting both the white and red wires and bolting them to the (HOT), lead on the back of the ALT. and still doesn’t charge. IM lost any help would be GREAT!
we had a problem with the red top from advance…
???
it went dead once and never held a charge again, took it back for exchange and the new one is working fine. they tried to tell us the batt was good it was the charging system, we’re like…um…car runs with no batt douche… it’s been fine since.
the car shows it is charging, but the prob is it won’t restart after it sit for a few minutes. You have to jump it to get it running then it is fine. I know there is a 2ga ground wire straight to frame. and engine to frame ground is good. Even when the car is jumped the car cranks slowly
Ive had quite a bit of problems with the optima batteries, I would surely take it back, i belive that those have a 3yr warrenty.
you need to link your grounds. in a case like this try it this way. from battery to chassis, same spot on chassis as battery to motor, motor to chassis. make sure its a continous ground. should also if needed run a ground from starter mounting bolt to the chassis sometimes its need some times its not. also if you have a ECU connect it to the same spot as the block to chassis ground on the front of car. make sure all grounds are bare when done and nice and secure. if not you wont make a good circuit.
also i would personally upgrade from 2gauge to 0/0 or 1/0 or 2/0 for the long ground.
that’s what this one was doing also
If you link the all the grounds does this cause a “ground loop” circuit