Has anyone had trouble with the batteries dying on them constantly? So far Ive had 2 cars with them relocated, both of them done by previous owners, and so far Ive had no luck with keeping the batteries "healthy."

Ive checked the grounds and re-grounded it with no avail.



Other than "put it back where it belongs," any suggestions would be helpful.

 

hevent had a problem with my relocated battery in at least 3 years.

 

Do you have a good battery box?

 

havent had a problem with mine in 2 years. is it running to a battery switch or anything out of the ordinary?

 

X2,if its sitting directly on the cars floor pan you could be seeing some problems.

 

You could have too small gauge of a wire...

Not sure who would be dumb enough, but it's possible.

 

you need at least zero guage wire. A lot of people try to do it with 4 guage wire but that is not sufficient. It will work but the started takes longer as if your battery is dead sometimes even when it has a good charge. My friends car had 4 guage running to the front and his battery seemed weak all the time and didn't take much to kill it completely and then he ran zero guage and it's been fine since then. I had dual 4 guage in my del sol and never had an issue.

 

I heard a rule of thumb was for every 2 feet, go up (or down) a gauge. Up in size, down in numbers. I've had mine for a little over a year and no problems so far.

 

2 gauge usually works fine unless you have a massive starter. Anything bigger usually isn't necessary and is just a huge pain in the ass to run through the car. Remember that you have voltage drop when you run a current through a length of wire, so your battery (in the trunk) charges to a lower voltage than the alternator in the front. Then when you go to start the car, you have another voltage drop from the battery to the front. So having the battery in the trunk isn't the greatest thing, and the bigger the wire the less problems you'll have. BUT, once you get to a large enough size to work properly, going any bigger isn't getting you anywhere.

That two foot rule is crap, forget you heard that. By that rule, if you go 10 feet, you've got cable the size of a tree trunk and there isn't any need for it at all. By that logic, you'd go from 4 gauge to 3/0 gauge in the span of 10 feet, so you'd be good for well over 300 amps continuous, and more than double that amperage for starting (short duration). Do you really think you need that?

 

Yes, its insulated as well with just some foam pieces.
Nope, its to the fusebox / starter and grounded. Thats it.



Note: I havent started the car in over 7 months, and when I went to start it the battery was dead. Could this be the culprit? And if so, how does the battery drain with no power being pulled from it?