E34: Relocate car battery from front to back seat

  • Click here to become an Official Member of BMW Club Malaysia Download Form

ktteoh

Club Guest
Joined
Feb 6, 2005
Messages
135
Points
16
mine is a ckd 1993 model. is it possible to relocate the battery from enginebay to underneath the back passenger seat ?i meant - is it already pre-wired cabling wise and i just do a physical move?
 
Its not pre wired! Problem is getting an intact piece of cable. The other option is to get new cables and ensure its the correct gauge.
 
Yes, you can transfer the battery to under seat.

pre-wired?..no..i dun think so, you have to buy positive very big gauge red cable to connect battery power from under seat to engine bay, very hard to get NEW battery cable.., I had checked with AB before, they don't have the stock.., but i think you can get it (not easily) at chop shop..price range from RM100-200. :D

Maybe you have to take out the dash board for easy installation of the cable... :blink:

May I know why you want to relocate your battery? for its longer life? :nyehehe:

Sometimes I worry about that long cable run from rear to front... :huh:
 
Originally posted by wan520i@May 31 2006, 09:55 AM
Yes, you can transfer the battery to under seat.

pre-wired?..no..i dun think so, you have to buy positive very big gauge red cable to connect battery power from under seat to engine bay, very hard to get NEW battery cable.., I had checked with AB before, they don't have the stock.., but i think you can get it (not easily) at chop shop..price range from RM100-200. :D

Maybe you have to take out the dash board for easy installation of the cable... :blink:

May I know why you want to relocate your battery? for its longer life? :nyehehe:

Sometimes I worry about that long cable run from rear to front... :huh:
Not to mention having to acccess the battery under the rear seat is a pain....
 
ya lor...no that tough lar...just tarik aje...

I always pull up the rear seat.....hehe...cari duit syiling...for my piggy bank.. :D :D
 
will it use drain more power for starting the engine? can someone answer this as I use to own an MGA those days and the battery is also at the back seems abit far does it.
 
Originally posted by ALBundy@May 31 2006, 09:47 AM
Its not pre wired! Problem is getting an intact piece of cable. The other option is to get new cables and ensure its the correct gauge.
albundy, i know some e34 came with battery under the back seat and from my own random survey - those seems to have a longer battery life - probably because underneath the seat it is cooler etc.

anyway i thought it would be an interested mod if i can do it on the cheap.

some questions then:
1. are the brackets etc all there underneath the seat ie i'm just missing the long cable?

2. do i just need a short cable for earthing and just one long cable for the positive link back to engine bay

3. how is the cable routed in cars where back seat battery is standard?

4. how big the cable gauge should be?
 
Top Bottom