wtf mate? battery relocation

SON240sx Automotive
1

So I relocated my battery to the trunk and all, and first the car ran like utter crap. Then I added a second ground, and it ran less like crap. W/ever, I had to go to work, so I drove it like that. I barely started it at the end of the day, my battery is dying now. I disconnected it as soon as I got home and now I’m puzzled as hell… I’m using the same 4 gauge wire I used for my amp, took out the fuse in between and everything seemed fine to me in theory. Plz try and get back to me by tommorow, since if I have no clue then, I’ll just stuff it back in the front and ditch this whole relocation idea.

EDIT: I obviously disconnected the amp. Right now, the power wire is going straight from the old positive connection under the hood, to the positive terminal on the battery. Nothing in between.

2

Sounds like the chassis is a bad ground (there is a lot of resistance from where you’ve grounded the battery to the engine components / electrical system.) You could move the grounds around and see if that helps but if I were you I would run a 4 gauge cable from the negative terminal to the engine bay and ground it to the engine and chassis
(in addition to the grounding you’ve already made)

This solution is easy and should work.

3

Aah. Well, I did ground it at the back, so I would figure there’d be a lot of resistance going through the whole car and all. Is there anything in the back that’s decent to ground to though? How’s the strut tower sound?

4

you kept your altornator to chassis ground right, you need that regardless (- battery cable in the front)

5

Alternator to chassis ground… I don’t think I did this. The alternator grounded through the battery before, or? All I did was remove the + and - from the battery. Then I removed the fuse from my 4 ga power wire. Connected my + terminal directly to the 4 ga power wire, insulated the connection and ziptied it away from things it can ground to and start fires. Put a battery terminal on the 4 ga power wire in the back, connected it to the + on the battery. Undid some screws on the car, sanded the paint off, made 2 grounds, put on a battery terminal, connected to the - on the battery.

Well, atm it isn’t all that important, since I put the battery back in front, and the car works now. But I would like to get this done eventually, so plz keep the advice coming.

6

The -ve cable goes from Engine block to the battery tray and then to the
-ve on the battery.

Make sure this cable remains grounded and make sure all the grounds
near your alternator up front remain grounded.

This most definitely sounds like a grounding issue.