Antigravity YTX12 High Power Lithium Battery w/Re-Start

Antigravity YTX12 High Power Lithium Battery with RE-START Most riders don't think about their battery until it leaves them stranded. Cold morning, middle of nowhere, parking lot at the end of a long day — it always picks the worst possible time. The Antigravity ATX12-HD-RS exists specifically to make sure that doesn't happen twice.This is the Heavy Duty version of Antigravity's RE-START lineup. The idea is simple: the battery monitors its own charge level, and if it gets critically low, it puts itself into sleep mode — but not before saving just enough reserve to start your bike one more time. Press the RE-START button, the engine cranks, and you ride away. No jumper cables, no calling anyone, no waiting.At 480 cranking amps and 3 lbs, it replaces a lead-acid battery that weighs up to 15 lbs more and starts harder. The difference on a cold morning is immediate. The weight difference changes how the front end feels. Both are real improvements for a swap that takes maybe 20 minutes.Key SpecsCranking amps: 480 CACapacity: 16Ah (PbEq) / 8Ah actualVoltage: 12VCase size: YTX12 standardDimensions: 5.9 x 3.38 x 5.19 inches (L x W x H)Weight: 3 lbsChemistry: LiFePO4Type: Heavy Duty RE-STARTCompatibility The 4-terminal design covers right and left side negative and positive connections — so you don't need to track down a specific terminal orientation for your bike. One battery fits both configurations.This unit directly replaces the following OEM battery sizes: YTX12, YTX12-BS, YTX14, YTX14-BS, YTX14H, YTX14H-BS, YTX14L, YTX14L-BS, YTX16-BS, YTX16-BS-1, YTX20CH, YTX20CH-BS, HYB16A-AB, GYZ16H, and GYZ16HL.Verified fitment spans hundreds of bikes across Aprilia, BMW, Buell, Can-Am, Harley-Davidson, Honda, Indian, Kawasaki, KTM, Moto Guzzi, Polaris, Suzuki, Triumph, Vespa, and Yamaha. Full fitment list is below.One thing worth being straight about: if you're running a custom V-twin over 103 cubic inches with higher compression or modifications, this RE-START version isn't the right call. The current draw on those motors is too high for the RE-START circuitry to handle reliably. Antigravity recommends the YTX12-24, YTX12-20, YTX20, or V-10 for those builds. Also not compatible with PWC or automotive applications.Installation Straight swap. Pull the old battery, drop this one in, connect the terminals. The 4-terminal layout means polarity orientation isn't an issue — positive and negative access points are on both sides.It can be mounted in any orientation. No liquid electrolyte means no spilling regardless of how it sits in the tray.The one thing you have to sort before installing: your charger. Lead-acid chargers and standard trickle chargers will damage lithium cells over time. You need a lithium-specific charger or a smart charger with a dedicated lithium mode. If your bike has a voltage regulator from before 1990, replace it first — an aging regulator that spikes voltage can overwhelm the battery's over-charge protection.If your battery sits in a hard-to-reach spot, the optional Antigravity RE-START Remote is worth picking up. It plugs into your existing SAE charging pigtail and lets you trigger the RE-START function without removing your seat or panels.Who This Is For Riders who park their bike for weeks at a time between rides. Riders whose bikes carry enough accessories — alarms, ECUs, GPS, heated grips — that parasitic drain is a real concern. Riders who tour, commute in all weather, or ride in cold climates where battery performance matters most.It also makes sense for anyone upgrading a stock battery on a bike they're keeping long-term. The weight reduction alone is worth it on most mid-size and larger bikes. The RE-START function is insurance you hope you never need but will be grateful for when you do.Key BenefitsRE-START technology — Built-in jump starting at the press of a button. The battery reserves enough charge to start your bike even when it's nearly depleted. No cables, no help required.Full Battery Management System — Low-voltage cut-off, over-discharge, over-charge, and thermal protection with real-time cell balancing. The most complete protection system found in any powersport battery.480 cranking amps at 3 lbs — Up to twice the cranking power of an equivalent lead-acid battery. Up to 15 lbs lighter on most bikes — a real, measurable handling difference.4-terminal universal fit — Works with positive or negative terminals on either side. No fitment guesswork, no adapter plates.LiFePO4 chemistry — No acid, no lead, no cadmium, no mercury. Safer chemistry, cleaner disposal, better longevity.Holds charge up to a year — With no significant parasitic drains pulling power while the bike sits.Fitment ListAprilia — ETV 1000 Caponord, Mana 850, RSV 1000 R, Shiver 750, SL1000 Falco, Tuono 1000 R, and more (2000–2016)BMW — F650GS, F700GS, F800GS, F800R, F800ST, HP2 Sport, K1200RS, K1300R, K1300S, R nineT, R1200GS, R1200GS Adventure, R1200R, R1200RT, and many R-series models (1970–2019)Buell — 1125CR, 1125R, Blast, XB12R Firebolt, XB12Scg Lightning, XB9R Firebolt (2000–2010)Can-Am — Commander 800R, DS 250 (2007–2020)Harley-Davidson — VRSCA V-Rod, VRSCD Night Rod, XG500 Street 500, XG750 Street 750, XL1200X Forty-Eight, XL883N Iron 883, XL883L SuperLow (2002–2022)Honda — CB1000, CBR1100XX Super Blackbird, ST1100, TRX250–TRX500 ATV range, VFR800 Interceptor, VT1100C Shadow, VT1300CR Stateline, VTX1300 series (1983–2021)Indian — FTR 1200, FTR 1200 S (2019)Kawasaki — KVF650 Brute Force, KVF750 Brute Force, W650, ZG1000 Concours, ZG1400 Concours, ZX1400 Ninja ZX-14R, ZX750 Ninja ZX-7R, ZZR1200 (1986–2020)KTM — 1290 Super Duke R (2014–2020)Moto Guzzi — Breva 1100, Griso 1100, V7 Racer, V7 Special, V7 Stone (2005–2015)Piaggio / Vespa — MP3 250, MP3 400, GTS 300, GTV 250, GTV 300, LXV 150 (2008–2012)Polaris — Phoenix 200 (2005–2020)Suzuki — AN650 Burgman, DL1000 V-Strom, DL650 V-Strom, GSF1200S Bandit, GSX-R1000, GSX-R750, GSX1300R Hayabusa, TL1000R, VS800GL Intruder (1981–2020)Triumph — Bonneville T100, Daytona 955i, Speed Triple, Sprint ST, Tiger 800, Trophy 1200 (1999–2019)Yamaha — FJ1200, FZR1000, YFM400 Big Bear, YFM660R Raptor, YZF600R, YZF750R (1982–2007)FAQsHow does RE-START actually work? The battery watches its own voltage constantly. When it gets close to fully discharged, it cuts power to the bike's accessories and goes into sleep mode — but it keeps a small reserve charge locked away. Press the RE-START button on the battery, that reserve wakes up, and you get one good crank to start the engine. Once the bike is running, the charging system takes over and replenishes the battery normally.My battery is buried under the seat and hard to reach — does that matter? It can. If you need to press the RE-START button regularly and access is difficult, pick up the optional Antigravity RE-START Remote. It plugs into your SAE charging pigtail so you can trigger RE-START from outside the bodywork without pulling the seat.Can I use my existing charger or battery tender? No. Lead-acid chargers — including most standard float chargers and trickle chargers — are not compatible with lithium. Use a lithium-specific charger or a smart charger that has a dedicated lithium mode. Antigravity makes their own Super-Charger line if you need a recommendation.My V-twin is modified and over 103 cubic inches. Will this work? Antigravity specifically advises against the RE-START version for modified, high-compression, or large displacement V-twin motors over 103ci. The current draw is too high. For those builds, look at the YTX12-24, YTX12-20, YTX20, or V-10 from Antigravity instead.Can it be mounted sideways or at an angle? Yes. LiFePO4 chemistry has no liquid electrolyte, so any mounting orientation is fine. Whatever angle the battery tray puts it at is not a problem.How long will it hold a charge if the bike sits unused? Up to a year with no parasitic drains. Accessories that draw power when the bike is off — alarms, ECUs, GPS units, heated grip controllers — will shorten that window. If your bike sits for months at a time, use a lithium-compatible maintainer to keep it topped up.