view large photo

Swipe Photo to View More

ATX-20 Antigravity 12v 680 CA RE-START Lithium-Ion Battery

Free Ground Shipping to Lower 48 States *

OR Simple-Click Checkout
In Stock

Estimated 2-6 Business Days with UPS Ground. Lithium Batteries are only charged to 30% of capacity. When you receive this battery it may need to be charged. This is the battery charger we recommend for this battery: OptiMATE Lithium TM-471.

Share this item with your friends

Product InformationStore Part Number: AG-ATX20-RS


Replaces: YTX15, YTX15L, YTX20, YTX20L, YTX20H, YTX20HL, YTX20-BS, GYZ20H, GYZ20L, and the GYZ20HL.

The NEW Antigravity ATX20-RS battery is built with Antigravity's groundbreaking RESTART Technology (built-in jump-starting) so you won’t ever get stranded with a dead battery again! The ATX20-RS is a hi-power, lightweight Lithium-Ion battery that directly replaces the OEM Lead/Acid YTX15, YTX15L, YTX20, YTX20L, YTX20H, YTX20HL, YTX20-BS, GYZ20H, GYZ20L, and the GYZ20HL.

The revolutionary ATX20-RS RE-START Battery intelligently monitors its status, and just before going completely dead puts itself to sleep with just enough energy to get your vehicle started again. Simply press the RE-START button located on the battery, start your vehicle and drive away… No more dead battery emergencies or being stranded!

The newATX20-RS is an extremely lightweight and high-power Lithium-Ion replacement battery for the heavy lead/acid YTX20 battery found in many Motorcycles and Powersport Vehicles. The ATX20-RS offers the first FULL Battery Management System (BMS) found on a Powersport Battery and includes low-voltage cut-off, over discharge, over-charge, and thermal protections with real time lithium-ion cell balancing. 

  • For replacement of all OEM Lead/Acid Batteries of same size.
  • Excellent for every day use in bikes up to 2200cc.
  • Great for extra large, high-performance V-Twin motors.
  • Excellent for Touring Bikes, Adventure Bikes and Bikes where extreme power and larger Amp Hour capacity are needed.
  • Excellent for use in Race Cars of all types including large V-8 Racing Motors up to 700 Horsepower.
  • Not for use with Personal Water Craft (PWC).
  • Not for deep cycle application. Meant for starting applications only.


  • RE-START TECHNOLOGY: The RE-START Battery intelligently monitor its status; if it senses over-discharge it will put itself into a sleep mode, yet saves enough energy to allow you to RE-START your vehicle.
  • FULL Battery Management System (BMS) including Over-Discharge, Over-Charge*, Thermal Protections and Cell Balancing.
  • Up to twice the lifecycle of lead/acid, and other Lithium batteries due to full Battery Management system.
  • HI POWER: Up to 2 Times the Cranking Amps of similar sized lead/acid batteries. Better Starting and higher voltage at start-up.
  • ULTRA LIGHTWEIGHT: Up to 70% lighter than equivalent lead/acid battery.
  • NEW 4 Terminal Design allows easy installation in any vehicle. Fits right or left hand Negative or Positive connections. No more looking for the correct Terminal locations in certain bikes.
  • LOW SELF-DISCHARGE: The RE-START Batteries do not self-discharge like Lead/Acid Batteries. They can hold a charge up to a year provided there are no “Parasitic Drains”. Bikes with accessories that draw power when bike is off like alarms, ECUs, GPS, heated grips, and other accessories should be maintained with a charger.
  • DURABILITY: Our lithium batteries are shock and vibration resistant making them perfect for Racing, and other applications requiring a durable battery.
  • MOUNTING: You can mount our battery in any orientation, there are no liquids to spill or drain out.
  • ENVIRONMENTALLY SAFER BATTERY: No Acid or Heavy Metals such as Lead, Cadmium, or Mercury.


Per Antigravity Inc.:*Over-Charge protection will not protect from a faulty/old Voltage Regulator spiking Hi-Voltages to Battery. If you have a Pre-1990s Motorcycle replace your voltage regulator; it is over 25 year old and most likely broken by now.

Works In

Vehicles that AG-ATX20-RS works in

Arctic Cat 1000cc Mudpro 1000H1(2010-2011)
Arctic Cat 1000cc Mudpro 1000H2, TRV, 1000i GT, XT(2012-2013)
Arctic Cat 1000cc Mudpro1000H2, TRV, 1000i GT, XT(2014-2017)
Arctic Cat 1000cc Thundercat(2007-2010)
Arctic Cat 1056cc Z1, T Z1(2010-2012)
Arctic Cat 1100cc Bearcat 5000, 7000(2015-2017)
Arctic Cat 1100cc M 7000, 8000, 9000(2014-2017)
Arctic Cat 1100cc Pantera 7000(2015-2017)
Arctic Cat 1100cc XF 7000, 8000, 9000(2014-2017)
Arctic Cat 1100cc Z1, T Z1, F1100, M1100, Bearcat, XF1100, T1100(2010-2015)
Arctic Cat 1100cc ZR 5000, ZR 7000, ZR 9000(2014-2017)
Arctic Cat 450cc 450, TRV, CORE(2011-2016)
Arctic Cat 450cc XC450, TRV, CORE2017
Arctic Cat 500cc Alterra2016
Arctic Cat 500cc Alterra, TRV2017
Arctic Cat 500cc Bearcat 570(2010-2015)
Arctic Cat 500cc F52009
Arctic Cat 500cc F5 LXR(2010-2015)
Arctic Cat 500cc Prowler 5002017
Arctic Cat 550cc 550, TRV, LTD, S, XT, CORE(2012-2015)
Arctic Cat 550cc Alterra2016
Arctic Cat 550cc TRV 550 LTD S(2010-2011)
Arctic Cat 565cc Bearcat 20002017
Arctic Cat 565cc Lynx 2000(2015-2017)
Arctic Cat 570cc F570, T570, Bearcat(2010-2015)
Arctic Cat 600cc M 6000(2016-2017)
Arctic Cat 600cc XF 60002017
Arctic Cat 600cc ZR 6000(2014-2017)
Arctic Cat 700cc Alterra2016
Arctic Cat 700cc Alterra, XT, TRV, CORE2017
Arctic Cat 700cc Bearcat 30002016
Arctic Cat 700cc Bearcat 3000, Pantera 30002017
Arctic Cat 700cc TRV, Mudpro, LTD, TBX, Diesel(2012-2017)
Arctic Cat 700cc TRV, Mudpro, LTD, TBX, Diesel Core, XT ATV2010
Arctic Cat 700cc TRV, Mudpro, LTD, TBX, Diesel,2014
Arctic Cat 700cc TRV700 Mudpro LTD TBX(2006-2011)
Arctic Cat 700cc XT, CORE(2013-2016)
Arctic Cat 700cc ZR 30002017
Arctic Cat 800cc F8 LXR, F800, M800, XF800(2010-2014)
Arctic Cat 800cc ZR 8000(2014-2017)
Arctic Cat BearCat WT(1995-2002)
Arctic Cat Cougar(1995-1998)
Arctic Cat Crossfire 5002007
Arctic Cat Crossfire 600(2006-2007)
Arctic Cat Crossfire 7002006
Arctic Cat EXT (Carburated)(1995-1996)
Arctic Cat EXT (EFI)1998
Arctic Cat EXT 600(1997-1998)
Arctic Cat F5(2007-2008)
Arctic Cat F6, F8, F 1000(2007-2009)
Arctic Cat Jaguar2007
Arctic Cat M 5(2005-2006)
Arctic Cat M 6(2005-2007)
Arctic Cat M 7(2005-2006)
Arctic Cat Mountain Cat2001
Arctic Cat Mountain Cat 5002002
Arctic Cat Mountain Cat 600(2002-2004)
Arctic Cat Mountain Cat, 1000(2001-2002)
Arctic Cat Pantera(1994-2001)
Arctic Cat Pantera 550, 600(2002-2005)
Arctic Cat Panther 550(1997-2001)
Arctic Cat Powder Extreme(1997-1998)
Arctic Cat Powder Special(1995-1997)
Arctic Cat Prowler 2 up1995
Arctic Cat Prowler Special(1991-1992)
Arctic Cat Sabercat 500(2004-2006)
Arctic Cat Thundercat(1997-2002)
Arctic Cat ZL 5002002
Arctic Cat ZL 550, 600(2002-2003)
Arctic Cat ZR 500, 600(2001-2002)
Arctic Cat ZRT(1997-2002)
BRP (Can-AM) 1000cc Commander(2014-2017)
BRP (Can-AM) 1000cc Commander 1000(2011-2013)
BRP (Can-AM) 1000cc Defender(2016-2017)
BRP (Can-AM) 1000cc Maverick(2013-2017)
BRP (Can-AM) 800cc Commander(2014-2017)
BRP (Can-AM) 800cc Commander 800(2011-2013)
BRP (Can-AM) 800cc Defender(2016-2017)
Big Dog All ModelsAll Years
Bombardier (BRP), Can Am 1000cc Outlander 1000, Renegade(2012-2013)
Bombardier (BRP), Can Am 1000cc Outlander 1000, Renegade, 6x6(2014-2017)
Bombardier (BRP), Can Am 330cc Outlander 330(2004-2005)
Bombardier (BRP), Can Am 400cc Outlander 400(2003-2004)
Bombardier (BRP), Can Am 400cc Outlander 400, XT, Max(2012-2015)
Bombardier (BRP), Can Am 400cc Outlander XT, Max(2004-2011)
Bombardier (BRP), Can Am 450cc Outlander(2016-2017)
Bombardier (BRP), Can Am 500cc Outlander, MAX, Renegade(2007-2013)
Bombardier (BRP), Can Am 570cc Outlander, Renegade(2016-2017)
Bombardier (BRP), Can Am 650cc DS650(2000-2006)
Bombardier (BRP), Can Am 650cc Outlander, 6x6(2016-2017)
Bombardier (BRP), Can Am 650cc Outlander, MAX(2007-2014)
Bombardier (BRP), Can Am 660cc Outlander EFI2006
Bombardier (BRP), Can Am 800cc Outlander 800 EFI, MAX, Renegade(2012-2013)
Bombardier (BRP), Can Am 800cc Outlander EFI, Renegade(2006-2011)
Bombardier (BRP), Can Am 850cc Outlander, Renegade(2016-2017)
Bombardier (BRP), Ski Doo 1200cc Grand Touring, Expedition(2010-2017)
Bombardier (BRP), Ski Doo 1200cc Grand Touring, GSX, MX Z, GTX2009
Bombardier (BRP), Ski Doo 1200cc Renegade, GSX, MX Z, GTX(2010-2017)
Bombardier (BRP), Ski Doo 300cc Skandic(2009-2017)
Bombardier (BRP), Ski Doo 550cc Expedition, Freestyle, Skandic, GSX, GTX, MX Z (All 550cc)2009
Bombardier (BRP), Ski Doo 550cc Expedition, Skandic, Tundra(2010-2017)
Bombardier (BRP), Ski Doo 550cc Freestyle, MX Z, GSX, GTX(2010-2015)
Bombardier (BRP), Ski Doo 550cc Grand Touring, Renegade2014
Bombardier (BRP), Ski Doo 600cc Expedition, Freestyle, Skandic, GSX, GTX, Summit, (All 600cc)2009
Bombardier (BRP), Ski Doo 600cc Expedition, Skandic, Summit(2010-2017)
Bombardier (BRP), Ski Doo 600cc Grand Touring, Renegade2017
Bombardier (BRP), Ski Doo 600cc Grand Touring, Renegade, Freestyle(2010-2016)
Bombardier (BRP), Ski Doo 600cc Tundra, MX Z, GSX, GTX(2010-2017)
Bombardier (BRP), Ski Doo 800cc Expedition(2010-2017)
Bombardier (BRP), Ski Doo 800cc Freestyle, GSX, MX Z(2010-2016)
Bombardier (BRP), Ski Doo 800cc Freestyle, Renegade, Summit, GSX, MX Z,2009
Bombardier (BRP), Ski Doo 800cc GSX, MX Z2017
Bombardier (BRP), Ski Doo 800cc Renegade, Summit, Free Ride(2010-2017)
Bombardier (BRP), Ski Doo 850cc MXZ X E-TEC2017
Bombardier (BRP), Ski Doo 850cc Renegade XE-TEC, Adventure2017
Bombardier (BRP), Ski Doo 850cc SUMMIT E-TEC2017
Bombardier (BRP), Ski Doo 900cc Grand Touring, Skandic(2014-2017)
Bombardier (BRP), Ski Doo 900cc Renegade, MX Z, Expedition(2014-2017)
Bombardier (BRP), Ski Doo ZX types(1999-2003)
Bombardier Sea-Doo 1500cc All Models (excluding 4 stroke)(1988-1994)
Bombardier Sea-Doo 1500cc GTI, GTR, GTS, GTX, RXT, RXP, WAKE(2016-2017)
Bombardier Sea-Doo 900cc Spark(2014-2017)
Buell 1000cc RR10001987
Buell 1000cc RR1200(1989-1990)
Buell 1000cc RS1200(1989-1993)
Buell 1200cc RSS1200(1991-1993)
Buell 1200cc S2, S2T Thunderbolt(1994-1996)
Buell 1200cc X1 Lightning(1999-2002)
Cagiva 750cc Elefant(1993-1999)
Ducati 906cc Paso(1990-1992)
Ducati 907cc IE Paso(1990-1994)
Excelsior-Henderson 1386cc Super X(1999-2000)
Honda 1000cc CBX1000 Super Sport1980
Honda 1000cc CBX1000 Super Sport (standard)1979
Honda 1000cc CBX1000 Super Sport(standard)1982
Honda 1000cc CBX1000F Super Sport (standard)1981
Honda 1100cc VF1100C V65 Magna(1983-1986)
Honda 1100cc VF1100S V65 Sabre(1984-1985)
Honda 1235cc AquaTrax F, R -12X, F, R-12(2002-2009)
Honda 1235cc AquaTrax F-15X, F-15(2003-2013)
Honda 1800cc GL1800 Gold Wing(2001-2008)
Honda 1800cc GL1800 Gold Wing, F6B, F6C(2009-2017)
Honda 1800cc NRX1800 Valkyrie Rune(2004-2005)
Honda 1800cc VTX1800C, F, N, R Retro, S(2002-2011)
Honda 650cc FourTrax Rincon TRX (optional cold starter)(2003-2004)
Honda 680cc TRX680 Four Trax Rincon2012
Honda 680cc TRX680 FourTrax Rincon(2006-2017)
Indian 1422cc All Other Models2001
Indian 1442cc All Other Models(1999-2000)
Indian 1442cc Scout, Spirit(2002-2003)
Indian 1720cc Chief(2009-2011)
Indian 1720cc Chief Classic, Vintage, Dark Horse(2012-2013)
Indian 1819cc Chief Classic, Chief Vintage, Chieftan, Roadmaster(2014-2017)
Indian 1819cc Chief Dark Horse(2016-2017)
Kawasaki 1000cc KZ1000, LTD, CSR(1981-1983)
Kawasaki 1000cc KZ1000-C Police(1980-1981)
Kawasaki 1000cc KZ1000-E ST, Shaft(1979-1980)
Kawasaki 1000cc KZ1000-P Police(1982-2005)
Kawasaki 1000cc KZ1000-R, Replica(1982-1983)
Kawasaki 1000cc ZG1000A Concours(1986-2006)
Kawasaki 1100cc JH1100 ZXi(1996-2003)
Kawasaki 1100cc JH1100-B Ultra 130(2001-2004)
Kawasaki 1100cc JT1100 STX(1997-2003)
Kawasaki 1100cc KZ1100-A, LTD(1981-1983)
Kawasaki 1100cc KZ1100-B GP(1981-1982)
Kawasaki 1100cc ZX1100-A GPz(1983-1984)
Kawasaki 1200cc JH1200-A Ultra 150(1999-2005)
Kawasaki 1200cc JT1200-A, B, C STX-R, STX-15F(2002-2007)
Kawasaki 1500cc JT1500-A, STX-15F(2004-2014)
Kawasaki 1500cc JT1500B, C, 250X Ultra LX , 260L, X(2007-2011)
Kawasaki 1500cc JT1500B, C, 250X, Ultra LX , 260L, X, 300L, X(2012-2017)
Kawasaki 300cc KLF300-B Bayou (CN)(1992-1999)
Kawasaki 400cc JS4001976
Kawasaki 440cc JS440(1977-1986)
Kawasaki 550cc JS550(1982-1985)
Kawasaki 620cc KAF620, Mule 3000, 3010, 3020(2011-2013)
Kawasaki 620cc KAF620,Mule 3010 4X4, Advantage Classic(2011-2013)
Kawasaki 620cc KAF620F, Mule 4010 4x4 (CN)(2011-2013)
Kawasaki 750cc JH750 ZXi(1995-1997)
Kawasaki 750cc JS750 SXi, SXi Pro(1995-2002)
Kawasaki 750cc JT750 STS, STX(1996-1998)
Kawasaki 800cc JS800 SX-R(2003-2014)
Kawasaki 900cc JH900 ZXi(1995-1997)
Kawasaki 900cc JT900 STS, STX(1997-2005)
Kawasaki KAF620, Mule 3000, 3010, 3020(2003-2010)
Kawasaki KAF620,Mule 3010 4X4, Advantage Classic(2003-2010)
Kawasaki KAF620F, Mule 4010 4x42009
Kymco 450cc Maxxer 450(2014-2016)
Kymco 450cc Maxxer 450, MXU 4502017
Kymco 450cc Maxxer450(2012-2013)
Kymco 450cc UXV4502016
Kymco 500cc MXU500(2010-2017)
Kymco 500cc UXV500(2010-2016)
Kymco 700cc MXU700(2012-2017)
Kymco 700cc UXV7002016
Moto Guzzi 1000cc V10 Centauro Sport, GT(1999-2000)
Moto Guzzi 1064cc California Classic, Vintage(2011-2012)
Moto Guzzi 1100cc California (CA only)(2003-2005)
Moto Guzzi 1100cc Quota 1100 ES(1999-2002)
Moto Guzzi 1100cc Sport 1100i(1997-1999)
Moto Guzzi 1100cc V11 Le Mans, Sport(1999-2005)
Moto Guzzi 1100cc V11 Le Mans, Sport-2003
Moto Guzzi 1100cc V11, Le Mans, Sport2001
Moto Guzzi 1380cc California2013
Polaris 1000cc Scrambler(2014-2017)
Polaris 1000cc Sportsman, XP, Touring XP, HL('16)(2015-2017)
Polaris 550cc IQ, LXT, Shift2013
Polaris 550cc Sportsman EPS, X2, Touring(2012-2014)
Polaris 550cc Sportsman, X2(2010-2013)
Polaris 600cc IQ, Shift, Switchback, RMK(2010-2011)
Polaris 750cc FS/FST, Wide Track2010
Polaris 750cc Turbo LX, IQ(2010-2014)
Polaris 750cc Turbo Switchback, Turbo Dragon(2010-2013)
Polaris 750cc Wide Track(2006-2009)
Polaris 800cc Ranger RZR(2008-2013)
Polaris 800cc Switchback, RMK2010
Polaris 850cc Scrambler(2014-2017)
Polaris 850cc Sportsman(2010-2014)
Polaris 850cc Sportsman, SP, Touring XP, HL('16)(2015-2017)
Polaris FS, FST(2006-2009)
Polaris Turbo Switchback, Turbo Dragon(2006-2009)
Polaris Victory Victory All Models(1998-2012)
Polaris Victory Victory All Models2013
S.O.S. Marine Mfg. All ModelsAll Years
Suzuki 620 QUV620F2005
Titan All ModelsAll Years
Triumph 1215cc Prophy(2012-2013)
Triumph 1215cc Tiger Explorer(2012-2014)
Triumph 1215cc Trophy2014
Triumph 1600cc Thunderbird(2010-2014)
Triumph 2300cc Rocket III(2003-2014)
Wet Jet International All ModelsAll Years
Yamaha 1000cc RS1000S, GT, RS(2006-2015)
Yamaha 1000cc RX 1000R RX (all)(2003-2005)
Yamaha 1049cc FX NitroAll Years
Yamaha 1049cc RS VectorAll Years
Yamaha 1049cc RS VentureAll Years
Yamaha 1049cc RS Viking Proffesional(2009-2012)
Yamaha 1049cc SR Viper(2013-2014)
Yamaha 1049cc SR Viper L/M/R/S/X(2015-2017)
Yamaha 1049cc VK Professional II(2016-2017)
Yamaha 1300 Vstar(2007-2008)
Yamaha 1300cc V Star 1300 Tourer2017
Yamaha 1300cc XVS13AY V Star 1300, Stryker(2009-2016)
Yamaha 1300cc XVZ13 Royal Star/Venture2007
Yamaha 1300cc XVZ13 Royal Star/Venture (All)(1996-2013)
Yamaha 1600cc XV1600 Road Star(1999-2006)
Yamaha 1700cc XV1700A Road Star, Silverado(2004-2007)
Yamaha 400cc YFM400FB Big Bear(2000-2013)
Yamaha 400cc YFM400FW Kodiak/Automatic(1996-2002)
Yamaha 400cc YFM400FWN Big Bear 2WD(2000-2003)
Yamaha 400cc YFM40FB Big Bear(2007-2012)
Yamaha 450cc YFM450FW Kodiak/Automatic(2003-2009)
Yamaha 450cc YFM45FG Grizzly(2007-2014)
Yamaha 450cc YFM45FX Wolverine(2003-2010)
Yamaha 550cc YMF550 Grizzly(2009-2013)
Yamaha 550cc YMF5FG Grizzly2014
Yamaha 600cc YFM600FW Grizzly(1998-2001)
Yamaha 600cc YFV600FW Grizzly(1998-2001)
Yamaha 660cc YFM660FA Grizzly(2002-2008)
Yamaha 700cc KODIAK ESP2016
Yamaha 700cc Kodiak 700, EPS2017
Yamaha 700cc YFM700FG Grizzly(2008-2014)
Yamaha 700cc YFM7FG Grizzly(2007-2017)
Yamaha 750cc TX750(1973-1974)
Yamaha 973cc RS Viking Professional(2010-2015)
Yamaha 973cc VectorAll Years
Yamaha 973cc VikingAll Years

Tech Specs

  • Dimensions (LxWxH): 6.89 x 3.5 x 5.12 in
  • Weight: 3.8 lb
  • Shipping Weight: 5.0 lb
  • C.A.: 680
  • Amp/Hr: 20 AH (PbEq)
  • Model: ATX-20
  • Manufacturer: Antigravity Batteries
  • Battery Polarity: -+
  • Watt/Hr: 128 WH
  • Chemistry: Lithium-Iron-Phosphate
  • Warranty: 3 Year
  • Manufacturer Part #: AG-ATX20-RS
  • Made In: China

Customers who bought this product also bought:

Reviews and Ratings

5.00 Average
5 Stars 1
4 Stars 0
3 Stars 0
2 Stars 0
1 Stars 0
Rated 5.00/5 Stars from 1 customer reviews.

Do you own the AG-ATX20-RS? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

Great battery
Perfect. Best battery hands down.
Is this review helpful?
Written by on Oct 26, 2019. Verified Purchase

See More Reviews

Order Line: 1-800-362-5397
M–F 6am–5pm PST
Tech Help: 541-474-4421
Fax: 541-471-6014
276 Tech Way, Suite A
Grants Pass, OR 97526
Buy Veteran and Blueribbon Coalition Buy Veteran Sharetrails