FD RX7 battery relocations have historically required some sort of cutting or drilling. One of the popular options was to place the battery in one of the rear bins, but in order to securely mount it to the chassis, the bin bottom had to be cut. Another option was to mount a battery in the trunk, likely requiring cutting the carpet and drilling some holes. Both options have made us cringe.

With the advent of smaller, lighter battery options possible through companies like Antigravity, we have designed this battery relocation kit to take advantage of an unused pocket in the FD RX7 trunk, behind a plastic cover. This allows you to mount a small, yet powerful enough lithium battery (Antigravity ATX20) in a secure yet hidden manner in the trunk. The photos will speak for themselves!

The battery tray it self is CNC laser cut steel which is then precision bent and powdercoated satin black. It incorporates a mount for a marine-grade 200A 48VDC Eaton Bussman surface mount circuit breaker. The circuit breaker provides some added protection and can be used as a cut off switch if so desired (accessible with the trunk plastics installed). Please keep in mind that while this is a quality breaker, repeated tripping over time may cause it to wear out. In addition, the tray has a provision to accept the plastic push clip retainer for the trunk plastic.

Provided with the kit is a power cable that will go from the battery to the breaker, as well as a ground cable that runs from the battery to the the 14mm bolt in the trunk. Installation hardware is provided.

We do not include a power cable or ground cable from the battery to the engine bay. We advise that you run the appropriate gauge cables for your application. If you are running coils like the IGN1A, it is highly recommended to have a ground cable to go from the battery to the top of the engine to provide a direct ground connection.

Please view this video on our Youtube channel for a product overview and installation guide.

You Tube

We offer three iterations of this kit:
1. Tray Kit WITHOUT a battery
https://jp3motorsports.com/products/...21db5e32&_ss=r

2. Tray Kit with an Antigravity ATX-20-HD battery
https://jp3motorsports.com/products/...f6cc1cac&_ss=r

3. Tray Kit with an Antigravity ATX-20-RESTART battery
https://jp3motorsports.com/products/...ef863761&_ss=r

 

I just purchased this kit with the ATX-20-HD battery and excited to install when I receive it. I do not have bins and do not want the battery taking up space in the cargo area so this seems to be a good option.

 

Would be nice if there was an option with a power cable to accommodate OEM or common (e.g IGN1A) modifications

 

I'm also getting my self one of these kits with the ATX-20-HD battery! woop woop

This is one of those products that feels like its OEM. So many modern cars today have the batteries hidden behind some panel in the trunk from the factory. I was always hesitant to move my battery from the engine bay as I didn't want to cut the bins or have the battery just sitting exposed in the trunk or in some ugly battery box taking up precious cargo space...

This is perfection!

 

I really like this installation but am concerned about how these batteries would react in a rear end collision. Is this not a big concern? I was wondering about somehow making this work in the spare tire location as I don't have a spare anyway. If safety isn't a concern, the setup from JP3 seems great.

 

I have this battery kit and the kit is complete and very nice! For your concern: the same condition presents itself if it was mounted in the engine bay and you got in a front end collision. Any place you put the battery, it’s going to present a concern of some sort. I think the inherent risk is in the technology of the battery itself. These do have a battery management system which provides a small net to things like overcharging and such. So it’s probably the safest unsafe lithium battery you can get

 

if your FD has a rear-ender then you’ll have much bigger issues than what happens to a rear mounted battery … just sayin’.
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