SKU: 4071687595

Antigravity Group-51R Lithium Car Battery

Sale price$466.65 Regular price$518.50
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Description

Antigravity Group-51R Lithium Car BatteryAntigravity Batteries has changed the game again with our latest Lithium Ion Car Batteries. The newest RE START line of batteries offers built in WIRELESS Jump Starting! That means if your battery is ever discharged, simply press the Button on our provided Keyfob, start the car and drive away! No need for a Jump Starter, or Roadside Assistance. You dont even have to open the hood to access the battery, and can do it from the safety of sitting in your

Antigravity Batteries has changed the game again with our latest Lithium-Ion Car Batteries. The newest RE-START line of batteries offers built-in WIRELESS Jump-Starting! That means if your battery is ever discharged, simply press the Button on our provided Keyfob, start the car and drive away! No need for a Jump-Starter, or Roadside Assistance. You don’t even have to open the hood to access the battery, and can do it from the safety of sitting in your car! If you want to also track your battery status via Bluetooth, you can use the Lithium Battery Tracker.

  • Group 51R OEM Automotive Case size (directly replace stock battery).
  • LxWxH: 9.4 x 5.2 x 8.6 inches.
  • Amp Hours: 24 Ah or 30 Ah.
  • High Power: 24Ah=1000CA, 30Ah=1200 Cranking Amps.
  • Exclusive RE-START Technology: Wireless Jump-Starting built-in; just press the button on your Keyfob remote.
  • Complete Battery Management System built-in.
  • Ultra Lightweight: Drop up to 40 lbs instantly! 70% lighter than lead.
  • Safest Battery Technology using full BMS and Lifepo4 Lithium chemistry.

RE-START TECHNOLOGY

BUILT-IN JUMP-STARTING

Never stranded again… Our amazing RE-START Technology is the first battery ever to offer Wireless Remote-activated built-in Jump Starting. (Can also be activated manually by pressing Restart button on top of battery.) So it won’t allow you to get stranded with a dead battery! For example if you left your lights on the intelligent Battery Management System (BMS) in the battery would put itself to sleep before being drained dead, yet save just enough energy to start your vehicle again and get you out of that emergency. And with our WIRELESS REMOTE KEYFOB you can activate the Jump-Starting without ever opening the hood of the car. Simply press the Keyfob Button, start your car and drive away.

FULL BATTERY MANAGEMENT

BUILT-IN BMS FOR SAFETY AND LONG LIFE

The Antigravity Batteries RE-START system offers the latest technology for the safest, longest life cycle possible. Our superior on-board Battery Management System (BMS) offers Safety Circuitry to prevent Over-Discharge and Over-Charge, and has Short-Circuit protections, while additionally offering Cell Balancing and Thermal protections. These advanced features of our BMS make the battery not only as safe as possible, but also extend the life of the battery by keeping the battery in the prime operating zone and not allowing damage to the battery. Therefore creating the longest possible Life Cycle. From 7-9 years are expected from the Antigravity RE-START Batteries depending on use and climate.

EXACT DROP-IN FITMENT

EXACT FIT FOR MOST VEHICLES

The Antigravity Batteries RE-START Automotive Batteries come in EXACT FIT OEM sizes for most all Performance and Passenger Cars/Trucks. We are the First Lithium-Ion Battery company to offer the most popular BCI Sizes of H5/Group 47, H6/Group 48, H7/Group 94R, Group 51R and others. These are standard sizes in most all Cars and Trucks. So whether you have a Porsche, Lamborghini, GTR, Mustang, Camaro, Corvette, Viper, BMW, Audi, Subaru or other Performance Car, we have a model that can fit. But keep in mind Lithium isn’t only for performance cars; it works great in passenger cars too! (Please check our Car Battery Fitment and Car Battery Installation pages for details).

PERFORMANCE BENEFITS

Weight: The ultralight Antigravity RE-START Batteries weigh from 8 lbs to 16.5 lbs (4-7 Kg) depending on the model. On average this equates to a weight loss from 35- 60 lbs (16-27 Kg) over a typical lead/acid battery! The incredible weight savings will increase your vehicle’s performance in several key areas such as handling, allowing shorter braking distances, improved acceleration and even better gas mileage. Additionally, our Lithium-Ion battery is by far the most economical weight loss product on the market! A 30 lbs weight reduction in Carbon Fiber or Titanium would cost over $50,000 dollars compared to roughly $700-$800 dollars for our Battery.
Power: The high cranking power of the Antigravity Lithium-Ion Battery can start Motors up to 900 Horsepower easily! Additionally for even more weight loss you can go with a smaller Amp Hour Battery if you want the lightest weight possible. Power will rarely be an issue being our small batteries will easily turn over Hi-Performance Motors up to 600 Horsepower!

AMP HOUR / CAPACITY OPTIONS

At Antigravity Batteries we realize our customers have different applications. So we offer different Amp Hour Capacities in the same Case Size for most of our automotive batteries. For example the H6 Case Size is used in the Porsche 911 Series of Cars, but is also used in some SUVs. So a higher Amp Hour Capacity Battery will be desirable in an SUV, but the Porsche owner might want to lose as much weight as possible for Track use, so we have a 24 Ah H6 Size battery that saves another 10lbs and benefits the Porsche Owner. So you can choose the option that suits your application the best. We have most models available in 24Ah, 30Ah, 40Ah and 60Ah.

GROUP 51R

(Positive Terminal on Right side) Available in 24Ah, 30Ah

but Cranking Performance better than a 90Ah Lead Battery

51R-24-RS
24 Amp Hours
1000 Cranking Amps
8.5 lbs
RACE ONLY

51R-30-RS
30 Amp Hours
1200 Cranking Amps
11.7 lbs

FEATURES & BENEFITS

  First Battery with WIRELESS Built-In Jump-Starting! Wireless Keyfob Remote actuated Emergency Jump Starting. So you won't be stranded by a dead battery ever again!

  FULL Battery Management System (BMS) including Over-Discharge, Over-Charge, Short Circuit, Thermal Protections and Cell Balancing.

  RE-START TECHNOLOGY: The RE-START Battery has self-restarting capabilities. It intelligently monitors its status and if it senses over-discharge it will put itself into a sleep mode, yet saves enough energy to allow you to RE-START your vehicle. Simply press the Wireless Keyfob.

  OEM FITMENT: Exact Lead/Acid Replacement sizes. No additional modifications or trays necessary to install.

  LONGER LIFE: 2x to 3x the lifecycle of lead/acid and other Lithium batteries due to full Battery Management system.

   HIGH POWER: Up to 3x the Cranking Amps of similar sized lead/acid battery. Better Starting and higher voltage at start-up.

  ULTRA LIGHTWEIGHT: The Antigravity RE-START Battery can be as much as 70% lighter than the Lead/Acid equivalent. This equates to roughly 25-55 lbs of instant weight-loss just by changing out the battery! That makes the Antigravity Lithium-Ion Battery the most cost-effective weight-loss product hands-down, while offering better starting, handling and braking! A real performance value!

  LOW SELF-DISCHARGE: The RE-START Battery does not self-discharge like Lead/Acid Batteries. It offers a longer storage time provided there are not excessive Parasitic Drains on the battery.

  DURABILITY AND CAR SAFE: Much more resilient to vibration than Lead/Acid. Incredibly shock and vibration resistant; no liquids or acid inside to spill or drain out. Will not release dangerous Hydrogen while Charging and will not leak liquids that are damaging to your finish or chassis such as acid.

  ENVIRONMENTALLY SAFER BATTERY: No Acid or Heavy Metals such as Lead, Cadmium, or Mercury. Always remember to Recycle your batteries responsibly!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4071687595

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Akeem
Lexington, US
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
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Reviewed in the United States on May 9, 2026
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Kim Groetsch
Waukegan, US
★★★★★ 5
BEST, MOST COMFORTABLE PILLOWS EVER!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!
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Reviewed in the United States on May 28, 2026
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Juanita
Louisville, US
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok. One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable. Overall, great quality, comfortable, and worth the purchase.
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Reviewed in the United States on June 3, 2026
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Verified Purchase
Love Leigh Angel
Battle Creek, US
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person. You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
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Reviewed in the United States on April 12, 2026
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$@[)E
Waukegan, US
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026

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