The battery is one of the easiest places to find significant weight savings in a performance vehicle.

Traditional lead-acid batteries can contribute substantial mass to a vehicle, yet their primary job is simply to provide the electrical power required to start the engine and support the vehicle's electrical systems.

Antigravity Batteries approaches that job differently.

Its lithium battery lineup combines lightweight construction with high cranking output, compact packaging, and integrated battery management technology. Depending on the application, Antigravity batteries can also add RE-START technology, which helps protect against complete discharge while providing a built-in method of getting the vehicle started again.

For performance cars, race vehicles, motorcycles, and powersports applications, the result is more than simply replacing one battery chemistry with another. It is an opportunity to reduce mass while adding technology to one of the vehicle's most basic but essential systems.

Why Battery Weight Matters on a Performance Vehicle

Weight reduction is one of the most effective ways to change the behavior of a performance vehicle.

Removing weight can affect acceleration, braking, handling, and overall vehicle response. The location of that weight also matters, particularly when reducing mass from relatively high or forward areas of the vehicle.

Antigravity's automotive lithium batteries are designed specifically around this principle.

Its RS-30, for example, uses LiFePO4 lithium chemistry and weighs approximately 11.5 lb while providing 1,200 peak cranking amps and a 50 Ah lead-acid equivalent capacity. Antigravity positions the battery for performance and race vehicles where high cranking power and significant weight reduction are priorities.

The XPH catalog also includes smaller motorsport-oriented batteries such as the AG-401, which weighs only 2 lb and is designed for applications where extreme weight savings and compact packaging are priorities.

Lithium Power in a Smaller Package

Reducing weight does not mean sacrificing starting performance.

Antigravity develops its batteries around high power density, allowing relatively small lithium batteries to deliver substantial cranking output.

The ATX20 RE-START, for example, weighs approximately 3.8 lb while providing 680 cranking amps. It uses a standardized YTX20 case size and can replace a number of OEM battery applications.

For even more demanding applications, the ATX30 RE-START provides 880 cranking amps while weighing approximately 5.75 lb. It is designed as a direct replacement for the YTX30 lead-acid battery size and can also replace certain YIX and GYZ applications.

The important point is that Antigravity's lineup is not built around one universal battery.

Different vehicles and builds have different requirements for physical dimensions, capacity, cranking output, and electrical load.

RE-START Technology Changes the Equation

One of Antigravity's most distinctive technologies is RE-START.

A battery that is left sitting, subjected to an electrical drain, or otherwise discharged can eventually reach a point where it cannot start the vehicle.

Antigravity's RE-START system is designed to address that situation.

When the battery's charge reaches a critically low level, compatible RE-START batteries can enter a protective sleep mode while retaining enough energy to restart the vehicle. The driver can then activate the RE-START function and attempt to start the vehicle rather than immediately requiring an external jump-start.

That makes RE-START particularly interesting for performance vehicles that may spend extended periods parked between drives.

Built-In Battery Management

Lithium batteries require appropriate battery management, and Antigravity integrates a Battery Management System (BMS) into its LiFePO4 battery designs.

Depending on the battery, the BMS provides protections against conditions such as over-charge and over-discharge, while thermal protection and cell balancing are also incorporated into the system.

This is an important distinction between simply installing a lightweight battery and using a purpose-designed lithium starter battery with integrated management.

The battery is not just a collection of lithium cells.

It is a complete electrical system designed to manage the cells and protect the battery during operation.

High Cranking Power for Performance Applications

A lightweight battery still needs to start the engine.

This is particularly important on performance vehicles where larger engines, higher compression ratios, high electrical loads, or competition-oriented setups can place significant demands on the starter system.

Antigravity's automotive lineup includes batteries with substantial cranking output despite their reduced weight.

The Group-35/Q85 automotive battery available through XPH, for example, provides 1,500 cranking amps and 40 Ah of capacity while weighing approximately 14 lb. The battery uses the OEM Group 35/Q85 case dimensions and incorporates a full BMS and wireless RE-START functionality.

This combination makes the battery suitable for builds where the goal is to reduce mass without moving to an extremely small battery with limited capacity.

Choosing Between Standard and Heavy-Duty Versions

Antigravity offers different battery configurations because not every vehicle places the same demands on its battery.

The Heavy Duty versions are designed for applications where additional capacity and cranking power are important.

The ATX20-HD, for example, provides 900 cranking amps and 30 Ah of lead-acid equivalent capacity while remaining within the compact YTX20 case format. It weighs approximately 5.18 lb and uses a full BMS with LiFePO4 chemistry.

The ATX12-HD-RS similarly increases the capacity and cranking output compared with the standard ATX12-RS, offering 480 cranking amps and 16 Ah of lead-acid equivalent capacity in a battery weighing approximately 3 lb.

For vehicles with additional electrical accessories or higher battery demands, the extra capacity can be more important than achieving the absolute lowest possible battery weight.

Motorsport Batteries for Maximum Weight Reduction

Not every performance build needs a conventional OEM-sized replacement battery.

Dedicated race cars and highly optimized track builds can have very different requirements from street vehicles.

This is where Antigravity's smaller motorsport batteries become particularly relevant.

The AG-401 weighs only 2 lb and is described as the smallest battery in the Antigravity lineup, targeting race and performance applications where space and weight are at a premium.

A battery like this can make sense when the vehicle's electrical requirements have already been carefully considered and the build is specifically optimized around weight reduction.

That is a very different use case from replacing the battery in a street-driven vehicle loaded with factory electronics.

Compact Packaging Creates More Options

Weight is not the only advantage of a smaller battery.

Battery dimensions can become a major consideration when modifying a vehicle.

Race cars may relocate the battery. Custom builds may use alternative mounting arrangements. Additional equipment may compete for space in the engine bay or trunk.

Antigravity's compact battery formats can create additional flexibility for these types of projects.

The ATX20-HD, for example, uses a standardized YTX20 case measuring approximately 6.89 × 3.4 × 5.12 inches, while smaller batteries such as the ATZ10-RS use an even more compact YTZ10-sized case.

The correct battery should still be selected according to the vehicle's physical requirements and electrical demands rather than simply choosing the smallest available option.

Built for More Than One Type of Vehicle

Antigravity's product range extends well beyond conventional sports cars.

The catalog includes batteries for:

• performance and race cars
• motorcycles
• ATVs
• UTVs
• powersports vehicles
• specialized high-performance applications

The battery requirements can vary significantly between these categories.

A motorcycle battery may prioritize extremely compact dimensions, while a performance car may require substantially higher capacity and cranking output.

Antigravity addresses these different requirements with multiple case sizes, capacities, output levels, and technology packages.

A Better Battery for a More Focused Build

A performance build is ultimately a collection of compromises.

More power can increase heat.

Larger brakes can add weight.

Bigger wheels can increase unsprung mass.

And while the battery may not receive as much attention as those components, it can provide a relatively straightforward opportunity to remove weight.

Antigravity makes that reduction more practical by combining lithium construction with high cranking performance and integrated battery management.

For compatible applications, RE-START adds another layer of convenience by reducing the consequences of a low-voltage situation.

The result is a battery designed not simply to replace the factory unit, but to better suit the priorities of a performance-oriented vehicle.

Selecting the Right Antigravity Battery

The right Antigravity battery depends on more than weight.

Before choosing a model, consider:

• OEM battery size and fitment
• required cranking output
• electrical load
• required capacity
• vehicle usage
• available mounting space
• street or competition use
• whether RE-START functionality is desired

A lightweight race battery may be ideal for a dedicated track car but inappropriate for a street vehicle with substantial electrical demands.

Likewise, a Heavy Duty model may make more sense when additional capacity and cranking power are priorities.

Antigravity's range provides enough variation to select the battery around the vehicle rather than forcing every build into the same specification.

Explore Antigravity Batteries at XPH

Extreme Power House offers Antigravity lithium batteries for performance cars, racing applications, motorcycles, and powersports vehicles.

From ultra-lightweight motorsport batteries to high-capacity automotive models with integrated RE-START technology, the lineup provides multiple ways to reduce battery weight while maintaining the power needed to start and operate the vehicle.

Explore the Antigravity Batteries collection at XPH and find the battery designed around your vehicle's requirements: https://x-ph.com/antigravity-batteries/