Antigravity AG-1601 Lithium Battery

(14 customer reviews)


The Antigravity Batteries AG-1601 is getting into the massive power arena with 480 Cranking Amps. It is the smallest lightest 16-Cell Lithium battery made. This is the go-to battery if you need very high power in a compact size.

  • Small Case format
  • 4.5 x 3.25 x 5.25 inches (LxWxH)
  • 480 Cranking Amps
  • 22 Amp Hours (Pb Eq)/11 Ah (Actual)
  • 3.18 lbs

In stock

UPC: 639713372724 SKU: AG-1601 Category:

Antigravity AG-1601

Small Case Lithium 12v Powersports Battery

The Antigravity AG-1601 is an ultra compact 16-Cell battery: only 4.5 x 3.25 x 5.25 inches (LxWxH to top of terminals) and 3.18 lbs yet has massive power. It can turn over many of the larger V-Twin motors up to 113 cubic inches. This lightweight motorcycle battery is often chosen for Custom V-Twins where small size is needed, and by Adventure bikers who want more power and capacity. AG1601 is also a favorite for Race Car use.

Antigravity AG-1601 High-Power Lightweight Lithium Battery

AG-1601 Features

  • Ultra-Lightweight and High-Power Lithium-Ion Motorsport Battery.
  • Most Compact of Lithium Motorsports Batteries available (great for racers and custom builders).
  • 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.
  • Can be installed in any orientation.
  • No highly toxic materials like Acids or Lead.
  • No fluids to leak and damage the vehicle.
  • 3-Year Warranty (view our Warranty page for details).

AG-1601 Best Uses

  • Capable of every day use in bikes up to 1600cc.
  • Large V-Twin motors up to 1600cc (96 Cubic inch).
  • Race use bikes up to 2000cc (use may vary depending on modifications to motor and size of motor).
  • Race use in Cars up to 3500cc (use may vary depending on modifications to motor and size of motor).
  • Note: there is no BMS in the SMALL CASE Batteries, only Balance Charging. They are for closed course use only.

Not for use in Passenger Cars or Street use Automobiles.
Not for use in PWC (Personal Watercraft).

Use only Lithium specific Motorsport Chargers to charge this battery! (No lead/acid chargers.) How to Choose a Charger

Small Case Comparison

Compare Antigravity Small Case models - the smallest, lightest, most Powerful lithium motorsports batteries available. (on mobile, swipe to see all specs)

Model Price Cranking Amps Amp Hours Size Weight
AG-1601 $289.99 480 22 Ah (PbEq)/11 Ah (Actual) 4.5" x 3.25" x 5.25" 3.18 lbs
AG-1201 $219.99 360 16 Ah (PbEq)/ 8Ah (Actual) 4.5" x 3.25" x 4.25" 2.25 lbs
AG-801 $179.99 240 11 Ah (PbEq)/ 5.5Ah (Actual) 4.375" x 2.37" x 3.75" 1.56 lbs
AG-401 $119.99 120 6 Ah (PbEq)/ 2.6Ah (Actual) 4.375" x 1.37" x 3.75" 15.2 oz
SC-1 (Race Only) $119.99 150 5 Ah (PbEq)/ 2.2Ah (Actual) 4.375" x 1.37" x 3.75" 15.2 oz

Proposition 65 Warning

WARNING: Cancer and Reproductive Harm –

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

3.18 lbs

Product Size

4.5" x 3.25" x 5.25" (mm: 114x83x133)

Cranking Amps


Amp Hours (Pb Eq)


Reviews (14)

14 reviews for Antigravity AG-1601 Lithium Battery

  1. Jason M

    I purchased three different systems from Anti Gravity. The 1st was a 16 cell to replace a heavier battery in a race car and the weight difference was 25Lbs. then I ordered two of the Jump start battery systems the xp-10 is crazy I cannot beleive that such a small jumper can jump my big diesel trucks. Glad I bought this set up and the customer service has been great. Again thank you for your guys help and knowledge I would recommend this product to everybody. Great for motorsports people. Glamis and recreational

  2. shah Oli

    Dear Guys,
    We hv received the shipment consisting of 2 parcels.
    But apparently both the item AG-1601 is not in the parcel.
    Pls advice why is it missing ?

  3. J. Holter

    I purchased a small case lithium 16 cell in May 2013 to help with the starting on my bike. It’s a custom chopper with limited space and this appeared to be the answer. Before I explain, let me just say that the battery cranks my S&S motor like no other battery I’ve ever had!
    Now, the first battery didn’t crank like I expected. It would tend to hang on the compression stroke when cold like most older Harleys, but would really spin after it got over the first compression stroke. I thought this battery would have completely eliminated that problem for me but version 1 did not. I ran it for exactly one year, having to put the charger on it frequently and help it get over the compression stroke manually when cold (roll it, dump the clutch, 3rd gear, hit the starter button at the same time…). I should have sent it back immediately.
    Then a year later when trying to get it started one day I killed it. Had to put the charger on and left it for about 30 minutes. Came back to find that it exploded in my battery box: the case separated and came apart. I sent it in for warranty. After sending it in I found that it was not covered and I had to pay for half the price for a replacement. I had hoped that warranty would have covered an obviously defective battery but not in this case.
    I purchased the replacement and another new one at the same time. The new one cranked the motor over like it was a lawnmower motor, even when cold. This was what I expected the first time around. Since then I’ve had no issues and it starts the bike better than ever.
    When I sent the blown battery in for warranty and inspection, they suggested I send my 8amp charger along with it (purchased at the same time for that battery) just to make sure it was not the cause of the exploded battery. The charger was fine. When I finally received my replacement battery however, there was no charger with it. I called, explained, and they sent out another charger. Not my 8 amp charger though: a 4 amp instead. I called, explained, and they sent out another. A few days later I received another 4 amp charger! I called, explained, bitched a little, and was sent another charger. It finally arrived and was the correct 8 amp charger. It took just over a month to get my replacement battery and correct charger back to me. That experience could have gone a hell of a lot smoother, I think.
    I’m sure my case was not entirely typical however, and I doubt most people have that much trouble. In the end I would, and will, purchase all my MC batteries in the future from these guys. Even though I got screwed a bit on warranty and lost a bit of time with the confusion, this Antigravity 16 cell is the best battery I’ve ever had in any of my bikes. If you have a custom chopper with limited space and some motor work, you really can’t go wrong with one of these.

  4. Glenn Oliver

    I can tell you the straight up hell Phoenix weather is on a battery! When everyone is putting their bikes up for the winter we are planning our trips! We ride all year the heat will destroy regular battery, cooking it from the inside! I am a 35 year plus electrician , work on everything from l.e.d. lighting to skyscrapers and 40 year bike wrench, this is the best battery I’ve ever put in a car or bike! We have a 16cell 3 1/2 years old it has started every bike we have worked on for 3 years! From yamaha 80 to a 112″ S&S monster! It’s in a 93 ” stroker S&S never fails to start out bikes! Our shop and friends all run them, I’ll never put anything in my panhead again makes the old points bikes come ALIVE! THANKS GUYS ! CALLING YOU NEXT WEEK FOR A NEW CHARGER! Glenn at upperclass rats

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