SKU: 8370233979

Antigravity ATX20 RE-START Lithium Battery

Sale price$136.80 Regular price$152.00
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

Antigravity ATX20 RE-START Lithium BatteryNever stranded again Antigravity Batteries introduces the groundbreaking RE START (RS) line of batteries the first batteries with built in jump starting! The revolutionary ATX20 RS RE START Battery intelligently monitors its status, and just before going completely dead puts itself to sleep with just enough energy to get your vehicle started again. Simply press the RE START button located on the battery, start your vehicle and drive away No more dead

 

Never stranded again… Antigravity Batteries introduces the groundbreaking “RE-START (RS)” line of batteries – the first batteries with built-in jump starting! The revolutionary ATX20-RS RE-START Battery intelligently monitors its status, and just before going completely dead puts itself to sleep with just enough energy to get your vehicle started again. Simply press the RE-START button located on the battery, start your vehicle and drive away… No more dead battery emergencies or being stranded!

The new ATX20-RS is an extremely lightweight and high-power Lithium-Ion replacement battery for the heavy lead/acid YTX20 battery found in many Motorcycles and Powersport Vehicles. The ATX20-RS offers the first FULL Battery Management System (BMS) found on a Powersport Battery and includes low-voltage cut-off, over discharge, over-charge, and thermal protections with real time lithium-ion cell balancing. If you want to also track your battery status via Bluetooth, you can use the Lithium Battery Tracker.

Automotive Applications

The ATX-20 Re-Start battery can also be used in Hi-Performance Automotive and Racing applications where extremely high cranking power and massive weight reduction in a very compact size are desired. Due to lower amp-hour capacity, not recommended for Street-use automobiles.

As with most all our batteries, you can easily bolt on our Automotive Terminal Adapters(AG-TA-1).

To give you an idea of the power of this battery, the ATX20-RS can easily start Motors up to 700 Horsepower yet the ATX20-RS weighs LESS than 5 pounds! At a massive 680 Cranking Amps in an extremely compact size, this battery offers the most power in the smallest package you can find for your vehicle. Additionally it features our exclusive RE-START feature so you won’t get stranded with a dead battery.

CRANKING AMPS: 680 CA

AMP HOURS (PbEq): 20 Ah

WEIGHT: 3.8 lbs

LxWxH: 6.8 x 3.4 x 5.1″

 


Re-Start Battery Top View

First Motorsports Battery with built-in RE-START & BMS.

New 4 Terminal Design for easy installation in any vehicle.


  • Most Advanced Lithium Battery on the market.
  • World’s First Battery with Built-in Jump Starting, using our RE-START Technology.
  • World’s First Powersport Battery with a FULL Battery Management System (BMS) including Over-Discharge, Over-Charge*, Thermal Protections and Cell Balancing.
  • RE-START TECHNOLOGY: The RE-START Battery intelligently monitor its status; 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 RE-START button on battery.
  • LONGER LIFE: Up to twice the lifecycle of lead/acid, and other Lithium batteries due to full Battery Management system.
  • HI POWER: Up to 2 Times the Cranking Amps of similar sized lead/acid batteries. Better Starting and higher voltage at start-up.
  • ULTRA LIGHTWEIGHT: Up to 70% lighter than equivalent lead/acid battery. Up to 15 lbs in bikes or 40 pounds in some Race Cars. Carbon Fiber costs thousands to lose a pound of weight; with our LiFePO4 battery a few hundred dollars will lose roughly 8-15 pounds and offers better starting and handling!
  • NEW 4 Terminal Design allows easy installation in any vehicle. Fits right or left hand Negative or Positive connections. No more looking for the correct Terminal locations in certain bikes.
  • LOW SELF-DISCHARGE: The RE-START Batteries do not self-discharge like Lead/Acid Batteries. They can hold a charge up to a year provided there are no “Parasitic Drains” (accessories that draw power when bike is off, i.e. alarms, ECUs, GPS, heated grips, and other accessories the vehicle might have).
  • DURABILITY: Our lithium batteries are shock and vibration resistant making them perfect for Racing, and other applications requiring a durable battery.
  • MOUNTING: You can mount our battery in any orientation, there are no liquids to spill or drain out.
  • ENVIRONMENTALLY SAFER BATTERY: No Acid or Heavy Metals such as Lead, Cadmium, or Mercury.

(*Over-Charge protection will not protect from a faulty/old Voltage Regulator spiking Hi-Voltages to Battery. If you have a Pre-1990s Motorcycle replace your voltage regulator; it is over 25 year old and most likely broken by now.)


  • For replacement of all OEM Lead/Acid Batteries of same size.
  • Excellent for every day use in bikes up to 2200cc.
  • Great for extra large, high-performance V-Twin motors.
  • Excellent for Touring Bikes, Adventure Bikes and Bikes where extreme power and larger Amp Hour capacity are needed.
  • Excellent for use in Race Cars of all types including large V-8 Racing Motors up to 700 Horsepower.
  • Not for use with PWC (personal watercraft).

The lithium ATX-20-RS is a direct replacement for these OEM battery sizes:

YTX15
YTX15L
YTX20
YTX20L
YTX20H
YTX20HL
YTX20-BS

GYZ20H
GYZ20L
GYZ20HL


Please Note: For Custom V-Twin applications with Motor sizes over 103 Cubic Inches, and when a higher compression, or modified motor is being used we do not recommend the RE-START version of our Batteries due to the extremely high current draw of these Larger V-Twin Motors.  Please use the following models for Large V-Twin Applications: YTX20,  YTX12-24,  YTX12-20, or V-10.


Use only Lithium specific Motorsport Chargers to charge this battery! Do not use Lead/Acid Chargers.

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: 8370233979

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Haley Harris
Fort Morgan, US
★★★★★ 3
Nice quality but a bit big
Size: 8 Wide Toddler, Color: Tan
These seem like great quality. 3 stars because they are large on my child’s wide foot, so I imagine they are even bigger on narrow and/or average feet.
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Reviewed in the United States on May 31, 2026
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TKane
Waukegan, US
★★★★★ 1
SENT USED
Size: 5 Wide Toddler, Color: Brown, Size: 5 Wide Toddler, Color: Brown
I’ve purchased many pair of STQ kid shoes and have been extremely happy with the product and after receiving these shoes, I am very disappointed! Received used…Placed in someone else’s packaging. The Bottom and front of shoes are black. Photos attached. I will be returning.
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Reviewed in the United States on April 20, 2026
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Shelley
Massapequa, US
★★★★★ 5
Love these!
Size: 7 Wide Toddler, Color: White
So far these are amazing for my toddlers super wide feet. They are super comfy on the soles as well when you push down.
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Reviewed in the United States on March 12, 2026
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Stephanie DiGregorio
Grantham, US
★★★★★ 5
Great first pair of shoes
Size: 9-12 Months Infant, Color: Brooks Navy
Love love love! The cutest shoes and great reviews led me to purchase these as our first shoes. Nice leather upper material, super easy to put on, and soft/comfortable for my little guy.
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Reviewed in the United States on April 12, 2026
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Elizabeth Hills
Dallas, US
★★★★★ 5
Love love love Robeez. Best soft soled shoes for baby/toddler just learning to walk.
Size: 12-18 Months Toddler, Color: Grey Leather
I can’t even tell you how much I love these shoes for my kids. My oldest son born 2018 had a pair of Robeez, the shark kind, and I’ve passed them down through all my boys until now- now somehow one of them has gone missing, still looking. So we got these for baby and oh my gosh Robeez has upped their game! The soles are still soft enough to be pliable but have some structure to them, they fit softly enough to accommodate round chubby feet but again have some structure, and they look adorable. The quality is really high and that’s so wonderful to see this day and age when so many things are produced cheaply. These are truly lovely. And they’re very handsome. My sweet boy wore them to a birthday party at the park and they were a hit. I love this brand so much, and these shoes are so cute. I wish I were having more kids to buy more cute pairs :)
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Reviewed in the United States on March 26, 2025

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