Why? Here's a good article about how moving a battery can put you closer to perfect balance:
http://www.superstreetonline.com/ho...806-turp-hows-and-whys-of-battery-relocation/
- To move 30+lbs from the front driver's side to the back passenger side.
- To extend the life of the battery by moving it away from the hot turbo engine.
- Because I'll need the extra engine bay space for my next project.
Is it safe?
- P2Rs have trunk batteries, it's not something new to Volvo.
- Battery technology has improved a lot, so they're less likely to release harmful gasses. There's still a risk, but there's a risk with everything.
I cut a rectangular hole in my shelf to fit the box, then bolted it down.
The power wire was run through the cabin through the usual route, passing through the grommet behind the glove box. A fuse was added 12" from the battery so if anything happens, there isn't a live wire running the length of the car.
I ground down the area around one of the bolts in the trunk (pun intended) to use as my battery ground.
Up front, it was just a matter of reconnecting various wires to the new power source and cleaning everything up.
Admittedly, the box is a bit bulky. If the shelf extended level with the trunk, the battery could be completely hidden, but this suffices for my needs and still provides easy access to the battery.