Just ordered Antigravity Lithium Battery

BoomBoy

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Yes, both the 20 and 30 work fine. I'm not sure where you got the 1amp of draw. With the 20 I can leave the car sitting without a tender for 2 weeks, and start it fine and drive around. Even not as a track car the 20 is fine if you aren't going to be leaving the car for more than about 2 weeks. The 30 you can leave for at least 3 weeks. The parasitic draw on these cars is pretty low. When you mention another $400, did you see if AG would let you trade the current one towards the 20 or 30 instead?
What this man said. I'm happy with my ATX20.
 

SCalla0490

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Im looking into ordering one of the antigravity ATX-20 batteries very soon. Whats the best mount option? Id like something that doesnt require any modification ideally....
 

james cole

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Im looking into ordering one of the antigravity ATX-20 batteries very soon. Whats the best mount option? Id like something that doesnt require any modification ideally....
would like to know as well…

Also does this battery have much less internal resistance than OEM?
 

galaxy

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There’s a lot of haters in here, and not saying some of it isn’t justified, but MMR has a nice one. Looks clean, easy install, fits in the battery box and everything. Serious contender IMO. FathouseFab also has a very nice one that I think accomplishes the same thing. Those are the only two I’m aware of, unless AG has something they were working on.
 


Greg35

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Regarding ATX-20HD avail. mounting options: As @galaxy said, both MMR & Fathouse Fabrications offer solid mounts. Also, AG does offer a nice looking aluminum mount from L C Fab.
 

Egparson202

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There’s a lot of haters in here, and not saying some of it isn’t justified, but MMR has a nice one. Looks clean, easy install, fits in the battery box and everything. Serious contender IMO. FathouseFab also has a very nice one that I think accomplishes the same thing. Those are the only two I’m aware of, unless AG has something they were working on.
The MMR piece is the mount I got for my ATX-20-HD. It’s nice, well-engineered and easy to install. Highly recommend it.
 

Cory S

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Subbing. I have an ATX-30HD on the way.
 

Angrey

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Subbing. I have an ATX-30HD on the way.
I bought one, just haven't installed it. I've been running the H5. Although I've been using the charger/tender when I park it, when I drive, the voltage seems to want to stay down around 12.7 or 12.8, which concerns me. Leads me to believe at some point it'll leave me stranded.

I think I'm going to install the 30 this weekend (and run the reset) and then see how the voltage varies when driving.
 

 
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