What are Antigravity Batteries?

Antigravity Batteries are the latest Nanophosphate Lithium Motorsport battery technology.  Our batteries work perfect in all 12v vehicle applications (not recommended for use in passenger cars). Our batteries are the smallest, lightest and most POWERFUL batteries available for motorsports vehicles regardless of some of the misleading claims of other manufactures. Our batteries can offer OVER twice the cranking amps as lead/acid, and in some cases 3 times the power in the same physical size battery!  All this while offering a weight savings of up 80%! They  can be installed in any orientation (even upside down) do not need any maintenance or trickle charging (if  there are no parasitic drains) , have a longer life than lead acid and are non toxic!

What sets Antigravity Batteries apart from your competitors?

1) We are devoted to building the best product available in terms of performance and durability, but also in regards to design and innovation. We are the only company to offer direct OEM (stock size) replacement batteries in high-power lightweight lithium, AND in ultra compact “Small-Case” batteries for racers, performance riders and Custom builders.  So the customer has the option of ultra high power and lightweight in a stock size OR they can have the ultra compact “Small-Case” preferred by Racers and Custom builders….both work well in all applications only the case sizes differ for what the customer prefers.

2) We are honest about our Cranking Amp and Amp Hour numbers… There are a few companies putting out highly inflated, misleading  Cranking Amp,  and Amp Hour numbers.  Rest assured that NO company offers more cranking amps or a more powerful battery than Antigavity Batteries…. We have the smallest and most powerful batteries of ANY company in our Small Case batteries, and have a model as high as 720 Cranking Amps yet its only 6 x 3.4 x 5.1 tall. No other company offers that kind of performance in such a lightweight and compact size!

3) We are the only “water tight” lithium battery … others claim  water resistant, or are not watertight in some cases, and will void the warranty if wet,  Antigravity IS watertight.  Antigravity does not void the warranty if you get salt on the terminal or over tighten a terminal, Shorai and Ballistic will void your warranty if these conditions exist.  Additionally, we have a 1 year warranty for race use… But the warranty on Ballistic or Shorai is voided for race use….  We know our product can handle the toughest use and stand behind it!

4) We offer possibly the best warranty in Lithium or Lead Batteries…  Our warranty is 3 years, a full year longer warranty than Shorai, and we do not have some of the warranty voiding limitations that they do, such as “battery cannot be discharged below 12.8 volts” (what battery does not go below 12.8v at some time?). We build a solid product and do not have these product quality limitations.  Read the warranties from Antigravity vs. other Lithium battery companies…

5) We  make our batteries here  in America and we use Power Cells made by the American manufacturer  who provides lithium batteries to World Class companies like Ford, GM, Toyota, Tesla just to name a few. We do NOT use the inferior Chinese Lifepo4 cells or the lower powered Pouch/Prismatic Cells that are found in some of the other brands like Shorai . We out-perform other Lithium batteries and build our product to withstand the demands or racing and hard use. When you purchase an Antigravity Battery you are getting the best and highest quality in every component from the Power Cells to our overall design and build quality.

Once you start to look closely at your choices and learn about this great new technology we feel Antigravity Batteries will warrant being on first choice list.

What are the benefits of Antigravity Batteries?

1) POWER-Antigravity Batteries are the most powerful battery in the smallest, lightest package that is available today. On average the Antigravity Battery is 1/2 to 2/3 the size of a lead acid battery, yet puts out TWICE the cranking amps.  We are also significantly more powerful than some other lithium batteries on the market.

2) BETTER STARTING-Because of the high power of our batteries you will notice a faster turn-over of the motor, but in addition to that you will have a larger ignition spark due to the fact that the voltage stays much higher than lead/acid on the starting pulse…this aids dramatically in starting the vehicle.

3) LIGHT WEIGHT- Antigravity Batteries are on average 70-80% lighter than the lead acid battery they replace. When seen in person the size and weight difference is quite extraordinary. Antigravity Batteries are a fraction of the cost of Titanium or Carbon Fibre, yet offer up 20 times the weight savings of those very expensive products!

4) COMPACT SIZE- Antigravity Batteries are usually from 1/2 to 2/3 the size of the lead battery they replace (when using the small case models)! This can be a great benefit to anyone installing Power Commanders or extra electronics, or for the custom builder who desires to hide the battery or have more room to lower the seat on a custom build.

5) NO MAINTENANCE- These batteries are a no maintenance battery… there are no liquids to spill, no trickle charging needed to keep the battery charged (provided there are not parasitic drains occurring)…If your electrical system is functioning properly, and you do not have accessories that drain the battery while your bike is off, you should not have any issues with the battery.

6) NOT DAMAGED BY VIBRATION or HEAT- This is an extremely important point… Lead batteries are damaged by vibration and heat; it is one of the causes of early failure in lead/acid batteries. If you have a performance bike or high vibration vehicle like a large twin the effect is more pronounced. Antigravity Batteries are not affected by vibration!

7) NON-TOXIC- The chemical makes up does not contain highly toxic materials such as acid or lead within the battery.

8) CAN BE INSTALLED IN ANY ORIENTATION- These are DRY CELL batteries and do not have liquids that can spill out of the battery.

How well do Antigravity Batteries work in Snowmobiles and Watercraft?

Our batteries work great in these application due to the extreme weight loss but are recommended strictly for  Performance or Race use due to some of the issues with cold weather for Snowmobiles,  and with Watercraft the fact of the direct drive starting system that needs more cranking power to turn over.

For use in Snowmobiles the fact is that all Lithium Batteries have what is called “Cold Lag”… when lithium is extremely cold it will suffer from initially sluggish performance until it is warmed up.  The battery self warms with short start attempts by discharging amperage which cause it to self-warm and soon get it’s full power back, but it must be pointed out that Snowmobiles are often ridden in these extreme temperatures and must consider this Cold Lag issue.   We recommend a minimum of 1 to 2 sizes larger for use in Watercraft of Snowmobiles, but please contact us for more information in determining what will work best for you.

 I see other brands of lithium batteries use Prismatic Cell and Antigravity is Cylindric… Tell me about the battery cells….What does Antigravity use and why?

The cell is the heart of any battery and there are major quality differences and power differences in them. There is two formats of cells used in Lifepo4 technology…. Cylindric and Prismatic. Cylindric is a small cylindric shaped cell with a metal exterior and Prismatic is a wide flat rectangle wrapped in a foil type covering. Cylindric (like we use) is capable of putting out a much higher Pulse Discharge than the Prismatic form of the battery and  puts out a a higher constant current as well.

The Power Cell we use is the most tested, reliable, durable and powerful Lifepo4 battery cell made, period.  A123 Systems is the originator of this type of Nano-Technology cell and no company has yet to produce an equivilent level of performance that this cell offers. The Prismatic form is less expensive and less powerful but does offer lightweight and no maintenance features…but Antigravity believes in having the highest power possible for use as a starting battery. So we stick with the proven, most powerful cells available.

As an example of the power to size ratio of the Antigravity Battery Power Cell vs Prismatic Cell…. A Prismatic Lifepo 18 amp hour (PbEq) battery puts out 220 Cold Cranking Amps… Our 16-cell  is a 16 amp hour (PbEq) yet puts out an incredible 480 Cold Cranking Amps DOUBLE the power of the Prismatic, yet amazingly is smaller than the Prismatic….This battery can turn over the Big V-Twins like 124 cubic inch high compression motors, where the larger Prismatic will fail to get past the compression stroke. We always go for POWER first and foremost and we trump all other batteries in this area.

Are there any concerns regarding these batteries?

1) If you are using the smallest battery possible for your bike to save weight (for example for race use a 4 cell in a 600cc bike, or an 8-cell in a 1000cc bike) you may find in 50 degree weather and below it may be sluggish initially. But with each attempt to start the battery actually warms itself from the amp discharge and gets back its full strength. If you often ride in weather below the 50s we recommend going up one or two sizes on the battery, this will give you more cranking amps to get power even if its very cold.

2) You can ruin the battery if you let it drain to below 10.5v volts!!! This is true of ANY battery, lead/acid or lithium. Draining a battery to this level will damage the battery cells. This is not a concern if you remember to turn off your ignition, or turn off any accessories that are not ignition switched and monitor your battery is you plan on not riding frequently. You should also make sure your vehicle does not have an “parasitic drain” or “short circuit”. A “parasitic drain” is something like an accessory that is pulling energy from the battery even though the ignition is “off” this can drain your battery below 10.5v and ruin it … Sometimes a short can also be the cause of a drain on the battery though all accessories are “off”. For the best battery life you should monitor your battery and if you do not ride for a time make sure you disconnect the battery.

3) Also, important is that OVER CHARGING above 14.6 v can damage Lead or Lithium batteries. For this reason older bikes should make sure their eletrical system and specifically the Voltage Regulator is operating correctly or you will find youself damaging your batteries if your bikes charging systems voltage to the battery is going above 15v.

4) DO NOT ABUSE the battery…. These batteries express extremely high amperage and can get over heated if you keep cranking a bike repeatedly over 7 seconds multiple times in a row. Though they are made to start your bike with fantastic results they can become over heated if you keep trying to crank a bike that just isn’t starting. 

How do I choose the correct battery

Please use our BATTERY FINDER (PDF 4mb) or email us using the contact form  and we will help you decide.

Does this battery require trickle charging?


But in most cases a maintenance charge is not needed.  The battery is Maintenance Free and can hold a charge for up to a year PROVIDED the bike/vehicle does not have a PARASITIC DRAIN or accessory taking the energy….IF your vehicles charging system is in good working order and you do not have any “parasitic drains” on the bike you should not have to charge this battery rarely if ever. If you do have longer layoffs, or you bike has accessories creating a drain you can purchase one of our battery chargers specifically designed for the Lifepo4 technology. See our Batteries Chargers. Trickle charger is required by Lead/Acid batteries because they have a Natural Discharge… Our batteries do not have this effect.

How do I charge the battery?

The Antigravity Battery comes ready to install, and start the bike/vehicle. We do offer a specific “smart”Lithium battery charger that is specifically for charging Lifepo4 Lithium batteries. We have a 4-amp and a 8-amp charger. It will charge the battery to its intended peak voltage and will shut off when the battery is charged.

You should NOT use an automobile or motorcycle charger that is specific to Lead/Acid batteries!  They can cause damage to the batteries because they charge in a different way than a specific Lifepo4 Lithium Charger. They often have a Desulfinate feature or over voltage “Quick Charging” feature… both of which will damage the Antigravity Battery. Lead Acid charges in much case will overcharge a lithium battery ending up in damage which is not covered under our warranty.

Is there a Warranty?

Yes! 3 Years pro-rata. Please compare our 3-year limited warranty to other similar products (read their fine print), you will find that we offer one of the longest and least restrictive warranties in the business. Other companies have 1 year shorter warranties, or void warranties if you Race, get salt on their terminal, or if you over tighten a terminal or you drop the voltage below 12.6v. Antigravity Batteries are built tough enough that we don’t have these extreme restrictions.

Antigravity Batteries LLC warrants to the original purchaser that our batteries are free of defects in material and workmanship for the term of 3 years or 1 year for Race use. Please read the warranty details below.

Please compare our 3-year limited warranty to other similar products (read their fine print!); you will find that we offer the longest and least restrictive warranty in the business. Other companies have much shorter warranties, or void warranties if you get salt on their terminal or if you tighten a terminal too tight…Antigravity Batteries are built tough enough that we don’t have these restrictions.


**Please note if you own an older classic bikes from mid 1980s and earlier you should update the charging systems to a modern voltage regulator if you have the older style system with a voltage regulator. Damaged voltage regulators can over charge and damage lithium batteries



Any physical damage caused by abuse or improper installations

Any modification to any part of the battery or its parts

Physical damage to the battery after purchase. Either by impact, neglect, or misuse.


The 3 Year Limited Warranty is on a pro-rated basis based from the original date of purchase. Only ONE battery replacement will be given under warranty. Antigravity Batteries are only eligible for one warranty replacement. Once a battery has been repaired or replaced under warranty, the replacement item only holds the remainder of the warranty period from the date of the original purchase of the battery.


  • 1-5 Months — Free Replacement
  • 6-12 Months — 75% discount from retail MSRP
  • 13-24 Months — 50% discount from retail MSRP
  • 24-36 Months — 25% discount from retail MSRP


Customer must send back battery for warranty service before a replacement battery can be shipped out. Antigravity Batteries will not ship a battery out unless the original unit has been sent back. Customers are responsible for paying initial shipping charge to return batteries. Antigravity Batteries will pay shipping on replacement batteries sent to customers, except those without copy of receipt and/or RA#.

If the battery is NOT defective, shipping back to the customer will be at the customer’s expense.



  • Damage from direct “shorting” of the battery
  • Damage occurring from V-Twin Motors that have a “jack shaft” get stuck and resulting in damaging of the battery
  • Using a non-lithium or similar product to charge the Antigravity Battery (do not use trickle chargers!)
  • Use of Chargers intended for Lead/Acid batteries.
  • Use of Chargers NOT intended specifically for Lifepo4 Lithium Batteries with a maximum charge voltage not over 14.4v
  • Overcharging due to a defect with vehicle’s voltage regulator or defective charging system on the vehicle
  • Over Charging battery above  14.6v
  • Over Discharge  of battery below 10v
  • Allowing voltage to drop below 10v
  • Use in excess of cranking (CCA) specifications
  • Parasitic drains that discharge the battery to below 10v

If the battery is used in sanctioned competition of any kind, abused, or used in a manner for which it was not intended the warranty is void.





Customers are responsible for paying initial shipping charge to return batteries. Antigravity Batteries will pay shipping on replacement batteries sent to customers, except those without copy of receipt.


Any item damaged in transit must be reported to the SHIPPER IMMEDIATELY upon opening of the package, and Antigravity Batteries notified of damage at which time Antigravity will inform customer of next action.

This warranty shall be IN LIEU OF any other warranty, express or implied, including but not limited to, any implied warranty of MERCHANTABILITY or fitness for a particular purpose.


How long will the battery last?

This battery should last about 4-5 years, but this will be determined ultimately by how it is used and treated by the consumer. The type of use as a “starter battery” application provides for long life especially if all is well with your electrical system. But in racing and abusive use the lifespan may be much less. Also Parasitic drains or over draining/over-charging the battery will shorten life dramatically or ruin the battery.  Just make sure you are disconnecting the vehicle if in storage and that you do not overcharge or let the battery drain below 10.5v and all will be good for a long time.

How do I store the battery?

In the case that you need to store your bike for a long period of time, you should disconnect the battery. If you storing the battery out of the bike just put in a cool dry place and cover the terminals with tape to protect from accidental shorting of the positive and negative terminals. The battery can hold its charge for up to a year, but check it every 6 months. Do not leave a battery connected if you know you will not be riding for a long time.

What is the range of voltage for the batteries?

The Antigravity Battery normal voltage is 13.2v.  The battery will read up to 14.7V immediately after charging. The normal operating range will read between 13.3-14.5V. After a few hours it will self balance to the 13.3-7 range which is its normal state of charge.  The maximum voltage the battery should be exposed to is 14.7V.  On the lower end of the voltage range the battery should be put on a charger if the battery voltage gets drops below the 12.5V range while sitting.  The voltage should not be allowed to drop below 10.5V while at rest. Permanent damage will occur at below 10.5 volts..


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