Can I change the place of the battery from underneath the rear seat to the front trunk with an extended cable back to the engine in a 1974 beetle?

Asked by Aug 09, 2017 at 09:13 AM about the 1974 Volkswagen Beetle

Question type: Maintenance & Repair

Dear Sir, I find the place(underneath the back seat) of the battery in my 1974
beetle as a very big hassle especially that the back seat is in itself a hassle
to remove to reach the battery. So I was thinking to place it up in the very
front of the front trunk. I'm aware that the gas tank is their and that could be
a risk. But is it doable " technically" or is it too far to extends a cable from
front to back?  I've heard so many opinions but still not sure.
thank you.

4 Answers


Yes it is something that can be done, but the cable size has to be increased, in y buggy days we used arc welder cable and made up a set that would work, also would make a ground cable that would go all the way back to the engine and attach it to a transmission or starter bolt and make sure the ground straps are in good condition or you might have light and gauge problems, and use a gel cell battery, I wish they have those back then, it could have saved a lot in corrosion repairs for acid eating out the battery box under the seat.


Technically, you can relocate the battery. You would need to buy a battery tray and bolt it down. Then buy longer cables and run them back to the engine. I really don't think it would be worth the effort. I would recommend spending a little extra on a good quality battery and leave it where it is.


Buy a battery box to keep the battery and your car safe. The cables should probably be upgraded to #1 or #2 wire.


Here is a wire chart ------ _Wiring_Voltage_Sizes.pdf

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