Antigravity U1/Group U1R Lithium Auto Battery w/Re-Start

Antigravity U1 / U1R Lithium Auto Battery with RE-START Technology

Upgrade to the Antigravity Group U1/U1R Lithium Battery featuring built-in Wireless RE-START jump-starting, 925 cranking amps, and 70% weight savings.

The Antigravity Batteries Group U1 / U1R Lithium Automotive Battery delivers high-performance starting power in an ultra-lightweight, compact drop-in case. Engineered with advanced LiFePO4 (Lithium Iron Phosphate) cell chemistry, this 12.8V, 20Ah battery pumps out a massive 925 Cranking Amps—delivering up to three times the starting power of standard lead-acid batteries while shedding up to 70% of the weight (weighing just 7.25 lbs).

What sets the AG-U1 series apart is Antigravity’s patented Wireless RE-START Technology. If parasitic drain or accidental power draw (such as leaving headlights on) drains the battery, the built-in Battery Management System (BMS) automatically puts the unit into sleep mode before complete discharge. It holds enough reserve energy to jump-start your engine remotely via the included wireless keyfob, eliminating the need for jumper cables or external jump packs.

Designed as a direct OEM drop-in replacement, it includes both M8 threaded brass terminals and standard SAE automotive terminal adapters for quick installation. It is available in both standard U1 (Left Positive) and U1R (Right Positive) terminal configurations to suit a wide range of compact vehicle engine bays.

Best Uses:

1. Lightweight Sports Cars: Ideal for track-focused compact vehicles like the Mazda Miata (NA/NB/NC) where shedding unsprung/front axle weight improves lap times and handling.
2. UTVs & Side-by-Sides: Powers high-vibration off-road UTVs, side-by-sides, and quad bikes needing maximum cranking reliability in rugged conditions.
3. Riding Mowers & Small Tractors: Compact footprint replaces standard OEM Group U1 lead-acid batteries in lawn equipment with zero maintenance.
4. Generators & Power Equipment: Serves as a reliable starter battery for commercial or residential backup generators prone to sitting idle for extended periods.
5. Custom Builds & Hot Rods: Excellent for custom builds where space is restricted, allowing engine bay clean-up without sacrificing cold cranking power.

Features:

1. Wireless Remote RE-START Technology: Built-in emergency reserve power activated via the included wireless keyfobs (or top-mounted button) so you never need external jumper cables.
2. Full Battery Management System (BMS): On-board intelligence protects against over-charge, over-discharge, short-circuit, and thermal damage while maintaining active cell balancing.
3. 925 Peak Cranking Amps: Delivers high output from a 20Ah capacity, offering up to 3x the starting torque of equivalent-sized lead-acid options.
4. Flexible Terminal Options & Hardware: Includes M8 threaded terminals along with standard SAE automotive brass terminal adapters.
5. Ultra-Compact OEM Fitment: Measures 7.75" x 5.2" x 7.3" (LxWxH), fitting directly into standard Group U1 and U1R trays without tray modifications.

Benefits:

1. Never Gets Stranded: Eliminates dead-battery anxiety by storing a power reserve to self-start the vehicle at the push of a remote button.
2. Instant 70% Weight Reduction: Weighing just 7.25 lbs, it strips up to 25–30 lbs off your vehicle, boosting acceleration, braking response, and cornering balance.
3. 2x to 3x Longer Service Life: LiFePO4 chemistry combined with full BMS protection delivers up to 8–10 years of usable life.
4. Low Self-Discharge & Zero Maintenance: Holds a charge for months during seasonal storage without acid leaks, off-gassing, or maintenance.
5. Faster Motor Spin & Higher Voltage: Minimizes starter voltage sag, spinning engines faster for quicker, cleaner starts.