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  • YTX14-BS - 10.2 lbs
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  • YTX14-BS - AT12-BS Comparison - FRONT
  • YTX14-BS - AT12-BS Comparison - SIDE
  • YTX14-BS - AT12-BS Comparison - TOP

ATX-12 Antigravity 'HEAVY DUTY' RE-START Battery


Product Description

NEW RE-START Series: The first batteries with built-in jump-starting!

Never again worry about getting stranded with a dead battery! Antigravity Batteries introduces the ground-breaking “RE-START (RS)” line of batteries – the first batteries with built-in jump starting! The revolutionary AT12BS-HD 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 AT12BS-HD is an extremely lightweight and high-power Lithium-Ion replacement battery for the heavy lead/acid YTX12 battery found in many Motorcycles and Powersport Vehicles. AT12BS-HD 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. 

The AT12BS-HD battery is built with Antigravity's groundbreaking RE-START Technology (built-in jump-starting) so you won’t ever get stranded with a dead battery again! The AT12BS-HD is a high-power, lightweight Lithium-Ion battery that replaces the OEM Lead/Acid YTX12. For an identical battery that is less expensive, weighs slightly less and has less cold cranking amps, see the AG-AT12BS-RS


  • 990/950/1190-1290 Adv/RC8:  You should be looking at the AG-ATZ10-RS Antigravity battery. This battery on this page is too tall for those bikes.
  • Super Duke 1290 R/GT: The battery on this page fits perfectly in width, but is 3/4" (20mm) thinner front to back and about 3/8" (10mm) shorter from top to bottom. This extra space can be filled with a Dynojet Powercommander V and Ignition Module nicely.

Stock vs Antigravity Comparisons

  • Stock YTX14-BS Yuasa weight: 10.2 lbs (4.62 kg)
  • Antigravity AT12BS-HD weight: 2.9 lbs (1.31 kg) -7.3 lbs! (3.3 kg)
  • Stock Size: 5.9 x 3.437 x 5.75 (150 x 88 x 146mm)
  • Antigravity AT12BS-HD size: 5.9 x 2.78 x 5.16 in (150 x 71 x 131mm)
  • Stock cranking amps: 200
  • Antigravity AT12BS-HD cranking amps: 480


  • World's first battery with built-in jump starting using Antigravity's 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. (A Remote RE-START Button will soon be Available so you can activate the RE-START feature without accessing 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. 
  • 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: This lithium batteries are shock and vibration resistant making them perfect for racing, and other applications requiring a durable battery.
  • MOUNTING: You can mount this 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 stock bikes up to 1200cc. (Works extremely well in the Super Duke 1290 R/GT)
  • Excellent for race cars or motorcycles up to 1400cc.

Technical Details:

  • Shipping Weight 3.3 lbs (1.5kg)
  • Shipping Dimensions 7.5 x 4 x 6.25 in (191 x 102 x 159mm)
  • Product Weight 2.9 lbs (1.31 kg)
  • Product Size 5.9 x 2.78 x 5.16 in (150 x 71 x 131mm)
  • Cranking Amps 480
  • Amp Hours (Pb Eq) 16

The lithium ATX-12-RS is a direct replacement for these OEM battery sizes:

  • YTX12-BS
  • YTX14H-BS
  • YTX14
  • YTX14L
  • YTX14H
  • YTX14-BS
  • YTX14L-BS
  • YTX16-BS
  • YTX16-BS-1
  • HYB16A-AB
  • GYZ16H
  • GYZ16HL


  • Use only Lithium specific Motorsport Chargers to charge this battery! Do not use Lead/Acid Chargers.
  • Antigravity Batteries will soon offer a Remote KeyFob Button to activate the RE-START feature equipped on this battery so you won’t have to remove a seat or fairing to access the battery.
  • 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.


Warranty Information

Warranty fulfilled by Antigravity Batteries

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Shipping Weight:
3.30 LBS
Calculated at checkout