Changing the Battery in an Aston Martin V8 Vantage

DISCLAIMER: As always, follow all safety protocols. Don't undertake this task if you aren't comfortable with it and fully understand it. You are ultimately responsible for anything you do. Neither Redpants, LLC or myself is responsible or liable for anything that may occur.

This shouldn't be a difficult job, but... packaging. What makes it difficult is that you're working behind the seat (which is not a comfortable place to be), you're likely to have a trim piece in the way of the sliding brackets (I hate them for this), and the battery is super heavy (over 53 lbs!).

The weight of the OEM battery and the difficulty of replacing it led me to develop my own lightweight battery kit. It drops 30 lbs from the car and the smaller battery can be swapped out in just a few minutes when needed.

I shot a video discussing the battery itself as well as the process of changing it. Below the video is a step-by-step guide.

New battery
T-30 torx bit
10mm socket
13mm socket
Long extension
Philips screwdriver
About an hour

The process described in the video above and steps below is the same for installing the Redpants lightweight battery mount. The only difference is that instead of putting an OEM battery back in, you'll be putting in the battery mount and smaller battery instead.

Step 1
Move the right-hand seat all the way forward. In the US, this is the passenger seat. In the UK, this is the driver seat.

Step 2
Remove the parcel shelf (just pull it out, no tricks there), and the styrofoam blocks from on top and behind the battery.

Step 3
Remove the philips-head screws along the aluminum bar, then remove the bar itself. You can now pull the vertical piece of carpet away from the battery and have plenty of room to work around it.

Step 4
Use the ratchet, long extension, and 10mm socket to remove the 2 bolts holding the U-shaped bracket that goes over the top of the battery.

Step 5
Use the T-30 torx bit to loosen the 4 bolts on the two sliding clamps. These do not come all the way out. They just need to be loosened enough to let the brackets slide freely. Remove the sliding brackets NOTE: The carpeted trim piece to the left of the battery might be in the way. You'll have to loosen it, remove it, or simply pull it out of the way to get the brackets off. This might be difficult.

Step 6
Remove the vent tube.

Step 7
Use the 13mm socket to loosen the nut on the ground terminal and then pull the cable away from the battery, then do the same for the positive cable.

Step 8
Remove the battery. Be careful! It's very heavy!

Step 9
Put the new battery in place, then complete the above steps in reverse.

Step 10?
If you want to drop some weight from your car, Redpants' lightweight battery kits are now available! Instead of putting in another OEM battery, you do all the same steps as above, but install this instead: