Antigravity YTZ7-8 Lithium Battery

(4 customer reviews)


The Antigravity YTZ7-8 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, our Lithium YTZ7-8 offers a big weight reduction and much better performance.

  • YTZ7S case size
  • 4.44 x 2.75 x 4.125 inches (LxWxH)
  • 240 Cranking Amps
  • 9 Amp Hours (Pb Eq)
  • 1.8 lbs

In stock (can be backordered)

SKU: AG-YTZ7-8 Category:


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. 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).
  • 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.)

Not for use in Passenger Cars or Street use Automobiles.

Proposition 65 Warning

WARNING: Cancer and Reproductive Harm –

Additional information
Weight 1.4 lbs
Dimensions 5 × 6 × 4 in
Product Weight

1.81 lbs

Product Size

4.44 x 2.75 x 4.125 in (mm: 113x70x105)

Cranking Amps


Amp Hours (Pb Eq)


Reviews (4)

4 reviews for Antigravity YTZ7-8 Lithium Battery

  1. David

    Everything seems to be working quite well. We have ordered others of this same battery and we have been completely satisfied.

  2. Anonymous

    Battery has already lasted me two years. I usually only get a little over a year with my Yuasa lead acid batteries in same bike and this battery is feather light. By far better then any of the competitions Lithium batteries.

  3. Anonymous

    Very happy with this battery except for the dimensions. It is supposed to be a direct drop in Lithium replacement for OEM Lead/Acid YTZ7S. It is actually slightly deeper than a YTZ7S by a couple millimeters. I jammed it into the battery box in my KTM530EXC but the plastic of the battery box is distorted and may end up cracking.

  4. Andy V.

    The CBR1000 battery box is a snug fit for the stock Yuasa. The Antigravity replacement battery is about .060in or 1.5mm too wide. I used force to cram it in there. Otherwise it works well. Starts the bike right up. Hope I don’t ever have to remove it.

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