Lightweight Battery

Joined
Sep 20, 2021
Messages
1
Can anyone recommend a lightweight lithium battery (along with the kit if needed) for my 1991 NSX? I was able to find several threads in the forums, but they are several years old.
 
Joined
Oct 9, 2005
Messages
2,596
Location
Ulster Park,NY
The light weight battery’s are more trouble then they are worth. Just get a good Interstate and call it a day.

I probably have a billet aluminum Odyssey battery mount bracket somewhere if you are dead set on a lightweight battery. I got the special float charger you need for them to. Make sure you get one from reputable dealer so you get the warranty you will need it the two I had lasted about a 2 seasons each.
 
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Joined
Nov 18, 2011
Messages
441
Location
Falcon Heights, MN - no Falcons - no Heights
I have a Shorai battery plate and Shorai charger - like a 6 or 7 lb setup.
They battery could be held with two fingers.
This battery was not intended for high charging current, so don't planning on draining your battery down and having this work a long time.
The battery was not intended for autos, but ATVs
It has a brief love (with me included):
http://www.nsxprime.com/forum/showt...7-pound-setup-Direct-bolt-on?highlight=shorai
But, again it was super light; mine lasted quite a long time (4 or 5 years).
Mine failed with ~ 6 volts output, so I expect some juncture between the banks or the internal charging circuit died.
If you want to give this a go then PM me and I will sell for $50 (mounting plate adapter/battery holder and charger)
It fits the low weight you request.
I replaced mine with a semi old school AGM (heavy Bosch)
I still think it was a cool idea, maybe not of the possibilities sorted out.
 
Joined
Mar 2, 2009
Messages
374
Location
So Cal
Hang tight just a bit. I believe @nsxnemo is working on a kit!

Thanks Mexi.

Yes, I have a kit going in production as we speak that will utilize Antigravity Battery ATX-20-RS and will be nsx specific with no modifications to mount.

I have also been using this battery the past year and absolutely love its built-in restart feature. Haven't had the need for a tender and weighs less than 3.5 lbs. More info to come later when kit is available.
 
Joined
Feb 21, 2011
Messages
1,455
Location
So Cal
Thanks Mexi.

Yes, I have a kit going in production as we speak that will utilize Antigravity Battery ATX-20-RS and will be nsx specific with no modifications to mount.

I have also been using this battery the past year and absolutely love its built-in restart feature. Haven't had the need for a tender and weighs less than 3.5 lbs. More info to come later when kit is available.

That's next level. Keep us updated Nemo-san :biggrin:
 
Joined
Apr 4, 2011
Messages
2,352
Location
Fountain Hills, AZ
Thanks Mexi.

Yes, I have a kit going in production as we speak that will utilize Antigravity Battery ATX-20-RS and will be nsx specific with no modifications to mount.

I have also been using this battery the past year and absolutely love its built-in restart feature. Haven't had the need for a tender and weighs less than 3.5 lbs. More info to come later when kit is available.

I recently installed an AntiGravity battery in my '91 after going thru several Interstate batteries with a trickle charger. the Antigravity is amazing, spins up so fast with so much power. And the remote reset for a possible draw down is a very nice feature. I parked the car for five weeks. The car fired right with no hesitation. Not cheap but I doubt I'll be buying another battery for 7-8 years. I fully endorse.
 

Joa

Registered Member
Joined
Dec 12, 2021
Messages
36
I recently installed an AntiGravity battery in my '91 after going thru several Interstate batteries with a trickle charger. the Antigravity is amazing, spins up so fast with so much power. And the remote reset for a possible draw down is a very nice feature. I parked the car for five weeks. The car fired right with no hesitation. Not cheap but I doubt I'll be buying another battery for 7-8 years. I fully endorse.

Good afternoon [MENTION=25419]Valhalla[/MENTION]. Looking into this battery. Curious about the battery life. Do you think battery lasts 5 months without charging? Might need to store the car for a while and would be awesome to be able to fire it right up after 5 months at a standstill. Curious to hear more about your experience with AntiGravity. Is this the one you got: Group35/Q85 Lithium Car Battery ?

Thanks!
 
Joined
Apr 4, 2011
Messages
2,352
Location
Fountain Hills, AZ
Good afternoon @Valhalla. Looking into this battery. Curious about the battery life. Do you think battery lasts 5 months without charging? Might need to store the car for a while and would be awesome to be able to fire it right up after 5 months at a standstill. Curious to hear more about your experience with AntiGravity. Is this the one you got: Group35/Q85 Lithium Car Battery ?

Thanks!

That is the model I have. Comes with two (2) remotes. The lesser model has the same feature of holding back an emergency amount of power but the reset button is on the top of the actual battery. I recently left the country for five weeks. When I came home the car started right up, just as if I had driven it only the day before.

The beauty of this battery is if it does draw down due to inactivity or system drain, it hold back a little power and then goes dormant. This is a nice feature for two reasons. The first is it will not leave you stranded, you will have enough batter power to start your car. The other reason is the dormant feature. Most batteries die because the discharge to zero which kills the cells. This battery will not self destruct. I look for a long happy life with one.

I purchased mine from the shop where i work. We Don't Lift Racing in Tempe, AZ. They are a factory dealer for AntiGravity batteries.
 
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Joa

Registered Member
Joined
Dec 12, 2021
Messages
36
That is the model I have. Comes with two (2) remotes. The lesser model has the same feature of holding back an emergency amount of power but the reset button is on the top of the actual battery. I recently left the country for five weeks. When I came home the car started right up, just as if I had driven it only the day before.

The beauty of this battery is if it does draw down due to inactivity or system drain, it hold back a little power and then goes dormant. This is a nice feature for two reasons. The first is it will not leave you stranded, you will have enough batter power to start your car. The other reason is the dormant feature. Most batteries die because the discharge to zero which kills the cells. This battery will not self destruct. I look for a long happy life with one.

I purchased mine from the shop where i work. We Don't Lift Racing in Tempe, AZ. They are a factory dealer for AntiGravity batteries.
[MENTION=25419]Valhalla[/MENTION] Much appreciated! Somehow I missed your reply. Saw it just now. Grabbing one of those soon! Thanks again.
 
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