Thread: Any 'hot' tips for underbonnet battery heat shielding?

I have a TD5 but the principles are the same. As many heat barriers as possible.
I would wrap the exhaust.
Then place bright say stainless sheet below and at the end of the tray.
A battery blanket may also help.
regards PhilipA

Do you have air suspension? If not, the air suspension compressor is an excellent place to put the battery.
Or multi layer insulation between the battery and exhaust system. Or foam board covered in al foil. Thin foam board, al foil and repeat.

BTW I would remove the alarm horn and move the tray as far left as possible. I have a starting battery there as you can fit a 130 ah house battery in the starting position. Rewire is pretty simple, one to the starter and one to the main fuse box.
regards PhilipA

Aluminium Heat Shield - Quality Materials to Keep Your Ride Cool


Check out the vid at the bottom of the page. When I was originally looking at putting the air compressor in that spot (the catch can is there now) was looking at doubling up the heat shield using the clips as spacers. There are alternative products on ebay etc but have found Carbuilders very good to deal with

Originally Posted by PhilipA

BTW I would remove the alarm horn and move the tray as far left as possible. I have a starting battery there as you can fit a 130 ah house battery in the starting position. Rewire is pretty simple, one to the starter and one to the main fuse box.
regards PhilipA

Would be a very small starting battery ide imagine? My cranking battery is fairly large so not sure ide be happy to go down. The battery this car came with (completely wrong for the car btw) was minuscule.

The position i chose was a combination of mounting points (i wasnt interested in cutting or modifying anything from the factory just yet) and battery height clearance to the bonnet. This particular battery was one of the shortest i could find. There may be something out there that is shorter but ive got this one now. I'll revisit it when it dies.

Originally Posted by RRT

Aluminium Heat Shield - Quality Materials to Keep Your Ride Cool


Check out the vid at the bottom of the page. When I was originally looking at putting the air compressor in that spot (the catch can is there now) was looking at doubling up the heat shield using the clips as spacers. There are alternative products on ebay etc but have found Carbuilders very good to deal with

That stuff looks really good. Might be the winner i think

Originally Posted by Bohica

Do you have air suspension? If not, the air suspension compressor is an excellent place to put the battery.
Or multi layer insulation between the battery and exhaust system. Or foam board covered in al foil. Thin foam board, al foil and repeat.

Just following up on Bohica's suggestion:

When I installed an auxiliary battery in my D2a about six years ago, I mounted it on the vacant SLS air compressor shelf.
This steel shelf is on the outboard side of the LHS chassis beam, roughly under the front passenger seat.

I used an AGM battery lying on its side, with the terminals uppermost.
This helps to keep them (and associated cables) out of water and other harm's way.
Just yesterday, I replaced this battery, so I've got a nice clean photo to illustrate the installation.

Cheers, AndrewMilne

Originally Posted by AndrewMilne

Just following up on Bohica's suggestion:

When I installed an auxiliary battery in my D2a about six years ago, I mounted it on the vacant SLS air compressor shelf.
This steel shelf is on the outboard side of the LHS chassis beam, roughly under the front passenger seat.

I used an AGM battery lying on its side, with the terminals uppermost.
This helps to keep them (and associated cables) out of water and other harm's way.
Just yesterday, I replaced this battery, so I've got a nice clean photo to illustrate the installation.

Cheers, AndrewMilne

It is a good idea and I plan to do the same.
FWIW - I have my onboard compressor fitted to an ARB auxiliary battery shelf in the same place the OP has chosen for his battery .