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This battery for electric start bikes is a great choice for those seeking very high power in a compact battery. It can replace the typical 12 Ah Lead/Acid battery with a weight saving of up to 7 pounds while offering much more cranking power. It is best used for bikes up to 74 cui./1200 cc. Possibly works with larger capacity bikes which are tuned well.

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Lithium-ion batteries require suitable battery chargers. Automobile or motorcycle chargers for lead/acid batteries can cause damage to Li-Ion batteries because they charge in a different way.

Regulators for Li-Ion Batteries

The upper limit for charging voltage is 14.4V. Antigravity recommend Cycle Electric regulators, who have a reputation for respecting this limit.

For the AG401 and 801 we recommend Cycle Electric's Low Voltage Regulators from our own experience.

Two batteries in parallel connection

Whoever - e.g. for reasons of space - intends to connect two small batteries in parallel, does not do any good to his regulator. Vehicle regulators are designed for charging only one battery. If you are connecting a second one in parallel, there's always one of the two that gets too much charge while the other one is starving to death. So please and in your best interest, provide some space for a single, but adequate battery and ride safely.
Battery »AG-1201/12-Cell« by Antigravity; replaces a 12 Ah AGM battery; W x H x D: 116 x 110 x 80 mm; net weight: 1.2 kg; 12 V; 6 Ah; energy rating: 88 Wh; with adhesive backed foam mats; USA
W&W# Picture net price* Available from warehouse Germany?
11-537 AG-1201/12-Cell $236.12 each
in stock
* United States of America: Tax free shipping. Please check your local import fees.


  • 13-583

    13-583 Regulator by Cycle Electric; fits Big Twin 1981-1988; black; replaces OEM 74513-82, 74512-84, 74513-85, and 74516-86; USA; gross weight: 530 g

  • 13-588

    13-588 Regulator by Cycle Electric; fits Big Twin 1989-1999 (Touring →1996, Touring EFI →1994); black; replaces OEM 74519-88; USA; gross weight: 570 g

  • The GasBox Battery Trays Antigravity 12-Cell

    The GasBox Battery Trays Antigravity 12-Cell This uninversal, sturdy battery carrier can be used on Custom projects where it securey and safely holds your battery in the frame. Designed to be used with a ...

  • LC Fabrications Battery Trays Antigravity

    LC Fabrications Battery Trays Antigravity Universal mount battery carriers for Antigravity lithium ion batteries. Machined from 6061 billet aluminum to withstand vibrations. Mount anywhere you choose ...

See also:

  • Antigravity Micro-Start XP-3

    Antigravity Micro-Start XP-3 Experience a quantum leap in battery technology. The Micro-Start XP-3 is an ultra-small and extremely powerful Lithium-Ion power source and when we say small, ...

  • Antigravity Micro-Start XP-10

    Antigravity Micro-Start XP-10 This hi-power lithium-ion booster pack is small enough to fit the inside pocket of your leather jacket yet so powerful it can start all motorcycles, cars and ...

  • OptiMATE Lithium Battery Charger

    OptiMATE Lithium Battery Charger Special OptiMATE charger for your Antigravity battery or other Lithium-Ion (LiFePO4/LFP type) batteries. It will protect your investment and guarantee your ...

  • Bates Kill Bill Battery Switches

    Bates Kill Bill Battery Switches Terminal and thumb screw assembly which can be mounted on any suitable place on the motorcycle. It connects the battery’s ground (negative) terminal and cable ...

  • Bates BattBoy 65

    Bates BattBoy 65 Modern gel or Li-Ion batteries offer a significant advantage - they are leak-proof. Those who ever experienced spilled acid in the battery tray, on the frame, ...

Have any questions?

  • Our sales team will be glad to help out:
    Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET
    Phone: +49 / 931 250 61 16