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The NEW Antigravity ATX20-RS is a hi-power lightweight Lithium-Ion battery, built with our groundbreaking RE-START Technology (built-in jump-starting) so you won’t ever get stranded with a dead battery again! Directly replace the popular YTX-20 Series Lead/Acid battery and others.

YTX20 case size: 6.89 x 3.4 x 5.12 inches (LxWxH)
680 Cranking Amps
20 Amp Hours (PbEq)/ 10Ah (Actual)
3.8 lbs
Safest Battery Technology using full BMS and Lifepo4 Lithium chemistry.


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.

BEST USES
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).

Replace YTX & GYZ Models

YTX15
YTX15L
YTX20
YTX20L
YTX20H
YTX20HL
YTX20-BS
GYZ20H
GYZ20L
GYZ20HL

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