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Antigravity Small Case Lithium Battery
Antigravity Small Case Lithium Battery

$119.99 - $289.99

Description See Also: 6 Reviews 7 Questions Part Numbers
Item #AGY000C

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6 Reviews
4.3 out of 5 stars
5 Star   5 4 Star   0 3 Star   0 2 Star   0 1 Star   1
All Reviews
Virginia bikes Verified Purchaser
Over 7 months ago Va
Very light!

Bought this to replace a weak trail tech battery on a kickstart bike. The dimensions are slightly different but they are similar in size but this anti-gravity is very light with more amp hours.

Over 11 months ago
Tons of cranking power!

Finally bought one of these and I wish I would have done it sooner. My sons YFZ 450 cranks faster and starts quicker with this battery.

Jonathon Verified Purchaser
Over 11 months ago Mt. Washington, KY
Great Battery

My husband purchased this battery for his 450 Er four wheeler and he loves it says he would recommend this battery to anyone. Very small, very lite weight, built great, not to sure about the longevity of the battery yet just purchased.

1 year 1 month ago Wake Forest NC
Awesome small case

I bought a 16 cell small case battery for my custom Harley Softail. The sole seat won't allow the use of a standard size battery because of the custom battery cover plate, but with this battery, I can mount it on the side and it will fit under the battery plate. It has no problems cranking my big twin with a cam and 9.5 compression. I've had it for two riding seasons and I've no not had any problems keeping it charged with the stock regulator, and I'm really very happy with it.

1 year 9 months ago north carolina
I dont recommend this

the battery seemed extremely weak and had a hard time starting my bike.i got it with the electric starter kit for my 17 crf450. the thing literally caught on fire almost ruined my brand new bike and took the shop with it. considering just going back to a kick start I feel like I wasted $600

2 years 8 months ago Ny
Buy these!

Wonderful product and very fast shipping! Best company I've ever dealt with hand down!

7 Questions
Answered:   4
Not Yet:   3
Q: Which one should I get for a 19 kx450?
Over 5 months ago
Top 10
Over 5 months ago
A: Antigravity recommends a 4 cell sized battery for your kx450f.
Zach Prows
Q: Would this battery run a headlight
Over 8 months ago
Q: How would these batteries work when it comes to fish finder on a kayak and how long would it las on runtime?
1 year 4 months ago
Top 10
1 year 4 months ago
A: These batteries are designed for specific bike fitment and can change the cranking amps and battery ratings dependent on the model.
Q: Wich one could fit in a Husquarna FC 250 2016
2 years 10 months ago
Expert MotoSport Staff
2 years 10 months ago
A: I would order the same amount of cells that your current battery has.
Q: What cell battery should I use in a 2017 yz450fx
2 years 10 months ago
Trying to reduce the weight of the bike ?
Q: What are the dimensions of the 12 cell and the 16 cell batteries? I have a Honda pioneer 1000-5 and want to put in a second battery.
2 years 11 months ago
Q: Whats the cell count mean?
Over 3 years ago
I would like to buy this battery for my 2015 YZ250FX but what is the cell count and what does it mean? What should I buy?
MotoSport Staff Expert
Over 3 years ago
A: For your 2015 Yamaha YZ250FX you would need the 4 cell.
There are 6 general uses for our batteries in vehicles.

1) Street with occasional Track Use-(Motorcycles)

2) Race/Track use only (Motorcycles)

3) Dirt Use- Motocross vs Enduro/Trail/Desert Use. (Motorcycles)

4) Snow and Water Use PWCs and Sleds/Snomobiles ( Always use the next size up or larger battery for these vehicle types)

5) Total Loss Systems (RACE ONLY-no charging system, vehicle is powered only by battery)

6) Race Cars (Our batteries are not intended for use in passenger cars (unless you monitor them)

1) Street and Occasional Track use

If you use your bike for full time street or street with occasional track use you would want a battery that has a similar Amp Hour rating (Capacity) of your stock Lead/Acid battery. This is because riding on the street you may encounter an emergency such as a roadside breakdown at night and need to keep safety lighting on. When riding on the street you should always play it safe and get a similar capacity to your stock battery. But keep in mind when you choose an Antigravity Battery with a similar capacity to your stock Lead/Acid battery you will get very large increase in the Cranking Power while still saving a massive amount of weight! This is where Antigravity really shines over the stock lead acid battery.

In this case we recommend

Use the 4-Cell for Bikes up to 450cc

Use the 8-Cell for Bikes up to 800cc

Use the 12-Cell for bikes up to 1200cc

Use the 16-Cell for bikes up to 1800cc

Use the 20-Cell for bikes up to 2200 and above

Use the 24-Cell for bikes up to 2200 and above

2) Race/Track Use (with stock charging system)

For racing (using your vehicles standard charging system) you would usually want the lightest, smallest battery that can start the vehicle effectively. You are not interested in having extra Amp Hours (capacity) because you are on a track never far from help… The main concern is the vehicle starts well and to save as much weight and space as possible. Your goal is for performance improvements that are offered by extreme weight saving such as better handling, shorter braking distances, better acceleration, and quicker handling…. All these improvements can be directly related to the extreme weight loss offered by our batteries.

In this case we recommend

Use the 4-Cell for track/race Bikes up to 600cc

Use the 8-Cell for dedicated track/race Bikes up to 1200cc

Use the 12-Cell for bikes up to 1500cc

Use the 16-Cell for bikes up to 2000cc

Use the 20-Cell for bikes up to 2200 and above

3) Dirt Use- Race/Enduro/Desert/Trail and Adventure

Most late model Offroad Motorcycles have electric starting on them including bikes like the KTM SXF for MX use. With these bikes there are basically 2 uses… 1) Closed course race use and then longer loop riding like trail riding, desert riding and weekend warrior riding. When deciding on which battery keep in mind for longer loops and trail riding you want a more powerful battery with more capacity. This is very important because often when trail riding there are many starts and stops, breakdowns, trail side emergencies etc. In this case you want that extra capacity for multiple start attempts or helping a buddy on the trail. When racing you are relatively close to a home base and/or help and are looking for the smallest lightest unit possible.

In this case we recommend

RACE USE Trail/Desert/Recreational

4-Cell for RACE Bikes up to 450cc 4 Cell for Trail/Desert bikes up to 250cc (will not work in 2-strk)

8-Cell for RACE Bikes up to 1000cc. 8-Cell for Trail/Desert bikes up to 450cc

12-Cell for RACE Bikes up to 1300cc. 12-Cell for Trail/Desert/Adventure bikes up to 1100cc

16-Cell for RACE Bikes up to 1500cc. 16-Cell for Adventure/Trail/Desert up to 1400cc

20-Cell/24-Cell Serious Adventure Riding, Touring, Side x Sides, Adventure Quads


# Part Numbers
Product Variant Manufacturer Part #
4-Cell AG-401
8-Cell AG-801
12-Cell AG-1201
16-Cell AG-1601