How to Relocate Your Car Battery to the Trunk

In this video I show you how to relocate a car battery to the trunk as I do it in my 1991 Honda Civic EF. I'll show you the parts you'll need, plus what you'll need to do in order to complete the install.

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PARTS YOU WILL NEED TO RELOCATE YOUR CAR BATTERY

- Battery Cable - I like to use the battery cable from the BMW E36, because they are thick, high quality cables with a distribution block and crimp bits already attached.

If you are going to buy normal cable, you should go with 4 gauge or larger. Personally I would go larger just to be safe, closer to 0 gauge, but it depends how many electronics you intent to run through the cable (for example a sound system would require a much larger cable – or you could connect it straight to the battery to avoid this issue. Just keep all this in mind when deciding which cable to get).

Also make sure you determine where you are going to place the battery so you can measure exactly how much you will need. Most likely it will be 5-6 meters depending on the car.

- Ground Cable - This cable goes from the battery negative terminal and needs to be grounded to the chassis somewhere close to the battery (ideally within 30cm or so). You can also get this from the BMW E36.

If buying normal cable, it can be thinner than the positive, however personally I would just buy an extra meter of whatever cable you are using for the positive and use that. That way you’ll be 100% sure you won’t have any issues.

- Battery Mount / Tray - A way to mount the battery in the trunk. I used a battery tray and tie downs I found on eBay. Don't forget any bolts you may need for this.

- Crimp Bits - To put on the cables on the engine bay side (and the battery cable if you are just using a normal battery cable)

- Power Distribution Block - If not using the E36 cable, you will need some way to connect the positive battery cable to the positive cables in the engine bay.

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