Antigravity 8 Cell Lightweight OEM Replacement Lithium Battery


Antigravity lithium batteries do not need to be charged when purchased new and will hold a charge for over a year when stored without any drain.  Under normal, regular use, it is not necessary to charge your Antigravity lithium battery.

*Do not attempt to charge your Antigravity lithium battery with a standard battery charger, only use a lithium battery specific charger such as the OptiMate 4s.


The Antigravity YTZ7-8 8 Cell Lithium Motorsports Battery is a Hi-Power Lithium Replacement for the OEM Lead/Acid YTZ7S found in so many bikes including most all Enduros. In comparison, Antigravity’s Lithium YTZ7-8 offers a big weight reduction plus much better performance. 240 Cranking Amps, 9 Ah (Pb Eq).


OEM Size Lithium Battery (Direct Replacement)

Our YTZ7-8 Battery is a Hi-Power Lithium Replacement for the OEM Lead/Acid YTZ7S found in so many bikes including most all Enduros and the Yamaha R3. But the Antigravity Lithium YTZ7-8 offers massive weight savings over Lead/Acid version and has over TWICE the cranking amps resulting in much better starting performance with a faster turn-over of the motor and higher voltage on start-up.


  • Direct drop-in Lithium replacement for OEM lead/acid YTZ7S.
  • High Power, Ultra Lightweight Lithium-Ion Motorsport Battery.
  • Double the power and 50% weight savings over lead/acid version.
  • Over 35% more Power than the comparable Shorai battery.
  • 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, iPods, GPS, heated grips, etc).
  • Built in the USA to high quality standards.
  • Large all-brass terminal design.
  • 3-Year Warranty (view our Warranty page for details).

Best Uses

  • Capable of every day use in bikes up to 600cc.
  • Race use for Enduro and MX electric start bikes up to 800cc.
  • Race and Track Day use up to 1200cc (If you have a higher-performance motor choose the Antigravity AG1201).
  • Custom builds like cafe racers or small bore customs up to 800cc. (Please note if you own an older classic bikes from mid 1980s and earlier you should update the charging sytems to a modern voltage regulator if you have the older style system with a voltage regulator. Damage can occur if overcharged.)

From the Wikipedia page on LiFePO4 batteries:

“The lithium iron phosphate (LiFePO4) battery, also called LFP battery (with “LFP” standing for “lithium ferrophosphate”), is a type of rechargeable battery, specifically a lithium-ion battery, which uses LiFePO4 as acathode material. LiFePO4 batteries have somewhat lower energy density than the more common LiCoO2 design found in consumer electronics, but offer longer lifetimes, better power density (the rate that energy can be drawn from them) and are inherently safer. LiFePO4 is finding a number of roles in vehicle use and backup power.”

Additional information

Weight 2 lbs
Dimensions 7 × 6 × 4 in


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