Antigravity YTZ7 Lithium Battery w/Re-Start - AG-ATZ7-RS

The Antigravity AG-ATZ7-RS YTZ7 Lithium Battery with RE-START is a high-power, featherweight lithium-ion motorcycle battery engineered to directly replace the OEM YTZ7S, YTZ5, and compatible lead-acid sizes in motorcycles and powersports vehicles — including the majority of off-road enduro bikes and select street bikes. Built around Antigravity's groundbreaking RE-START Technology, this battery is the world's first powersports battery with built-in jump-starting capability, meaning a low battery no longer has to mean a long, frustrating day on the trail or roadside.

Key Features & Benefits

• Built-In RE-START (Jump-Starting) Technology: The battery intelligently monitors its own charge state. Before it goes completely dead, it enters a protective sleep mode — preserving just enough energy so you can press the RE-START button on the battery and fire up your engine without external help. No jumper cables, no tow truck.
• RE-START Remote Compatible: If your battery is buried under the seat or behind side panels, the optional Antigravity RE-START Remote accessory (sold separately) plugs into your existing SAE charging pigtail — so you can activate RE-START without removing any bodywork.
• World's First Full BMS on a Powersport Battery: The AG-ATZ7-RS includes a complete Battery Management System (BMS) with over-discharge protection, over-charge protection, thermal protection, and real-time lithium-ion cell balancing — making it the safest technology in its class.
• Dramatic Weight Savings: At just 1.3 lbs, this battery is a fraction of the weight of a comparable lead-acid unit, a meaningful upgrade for weight-conscious riders, especially on off-road and enduro bikes where unsprung and total mass directly affect handling.
• 150 Cranking Amps: Delivers strong, reliable starting power despite its compact, lightweight form factor.
• LiFePO4 Lithium Chemistry: Uses lithium iron phosphate cells — widely regarded as the safest lithium chemistry available — for long-term reliability and thermal stability.
• Over Twice the Lifecycle of Lead-Acid: Antigravity states the RE-START series offers more than double the lifecycle of conventional lead-acid batteries, making the investment pay off over time.
• Mount in Any Orientation: The AG-ATZ7-RS can be installed in any mounting position, giving you flexibility during installation that a conventional flooded battery simply cannot offer.
• Compatible with 6 OEM Battery Sizes: Replaces multiple OEM battery designations, not just the YTZ7S — expanding fitment across a wide range of bikes.
• 4-Terminal Design: The new four-terminal layout simplifies installation across different vehicle wiring configurations.
• Battery Tracker Ready: Want to monitor state of charge remotely? Antigravity's optional Battery Tracker accessory (sold separately) can be paired for Bluetooth-based status monitoring.

Specifications

• Part Number: AG-ATZ7-RS
• Replaces OEM: YTZ7S, YTZ5, and compatible sizes (6 OEM sizes total)
• Cranking Amps: 150 CA
• Amp Hours: 7 Ah (PbEq) / 3.3 Ah Actual / 42 Wh
• Weight: 1.3 lbs
• Dimensions (LxWxH): 4.53 x 2.75 x 3.35 inches (YTZ7S case size)
• Chemistry: LiFePO4 (Lithium Iron Phosphate)
• BMS: Full Battery Management System included (over-discharge, over-charge, thermal, cell balancing)
• Mounting Orientation: Any orientation
• Application: Motorcycles and powersports — NOT for use in automotive applications
• UPC: 711811703362

Fitment

The AG-ATZ7-RS is a direct OEM-replacement battery for vehicles that use the YTZ7S or YTZ5 battery sizes, as well as up to six compatible OEM designations. According to Antigravity, the vast majority of off-road and enduro bikes use this battery size, and select street bikes do as well. Use Antigravity's online Battery Finder tool or contact ThreePiece.us to confirm fitment for your specific year, make, model, and engine before ordering.

Important: This battery is not intended for automotive (car) applications. It is designed exclusively for motorcycles and powersports use.

What's in the Box

The Antigravity AG-ATZ7-RS ships as a complete ready-to-install battery unit featuring the integrated RE-START button and 4-terminal design. The optional RE-START Remote and Battery Tracker accessories are sold separately by Antigravity.

Why Buy from ThreePiece.us

At ThreePiece.us, we stock the Antigravity AG-ATZ7-RS as a regularly available product so you're not waiting weeks on a back-order. Every order ships with free shipping — no minimum required. Need to spread out the cost? We offer financing through Affirm, so you can get the upgrade your bike needs today and pay over time. Have a fitment question or need help confirming the right battery for your specific model? Our team is here to help — reach out before you order and we'll make sure you get the right part the first time.

Frequently Asked Questions

How does the RE-START feature actually work?

The AG-ATZ7-RS continuously monitors its own charge level. When it detects it's approaching over-discharge, it enters a sleep mode — but intentionally retains a small reserve of energy. When you press the RE-START button located directly on the battery, it releases that reserve to crank the engine and get you moving again. No external jumper pack or assistance needed.

What OEM battery sizes does the AG-ATZ7-RS replace?

It directly replaces the YTZ7S and YTZ5, plus up to six compatible OEM battery sizes in total. If you're unsure whether your bike uses one of these sizes, check your owner's manual for the OEM battery designation or use Antigravity's Battery Finder — and feel free to contact ThreePiece.us for confirmation.

Can I mount this battery upside-down or on its side?

Yes. Unlike conventional flooded lead-acid batteries, the AG-ATZ7-RS can be mounted in any orientation without risk of leakage or damage, giving you full flexibility during installation.

Do I need a special charger for this lithium battery?

Antigravity recommends using a charger designed for lithium-ion batteries. They offer their own SUPER-CHARGER line of compatible chargers. Using an incompatible lead-acid charger may not correctly maintain a lithium battery — consult Antigravity's documentation or contact us for charger recommendations.