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Home > Starter Batteries (Powersports)
12V18Ah-US4 StarkPower "ULTRA START" Lithium Ion Starter Battery, FREE CHARGER !

12V18Ah-US4 StarkPower "ULTRA START" Lithium Ion Starter Battery, FREE CHARGER !

Part Number SP-12V18-US4
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StarkPower’s “ULTRA START” Lithium Iron Phosphate (LiFePO4) starter battery is the ultimate in weight versus power with advance technology. This is a drop in replacement for your Lead acid battery, and will require no change to your existing system. The "UltraStart" starter battery has the safest, most powerful Lithium Chemistry (FePO4) along with an internal microprocessor controlled battery management system (BMS) with “IQ restart technology” to allow for engine starting capabilities with a drained battery.

  • "IQ Restart Technology".
  • Ultra light weight. Up to 80% less weight.
  • Lasts 300-400% longer than lead acid.
  • Internal microprocessor controlled Battery Management System (BMS) to prevent over-charging or overdischarging from occurring with temperature monitoring.
  • Internal cell balancing circuit inside for longer life and added starting performance.
  • Faster engine turn-over for better starts.
  • Direct drop in; No engine modifications needed.
  • No expensive, complicated cell balancer charger needed.
  • No trickle charger needed if you have no current draw.
  • FREE charger/maintainer included with purchase.
  • Terminal posts are made from Aluminum to reduce weight.
  • No Lost Nuts.
  • Lower self discharge rate (2% vs 10% / month).
  • Expect 8-10 years of bat life that will reduce your operating cost by half that of lead acid.
  • No explosive gasses during charging, no lead, no heavy metals, no acid spill.
  • Environmentally friendly.
  • SAFE !

What is IQ-Restart Technology"?

“IQ Restart Technology” protects the battery from a deep cycle discharge by monitoring the battery voltage level and shutting the battery power off prior to a full discharge, such as in the case of leaving a headlight, radio or electrical component on for an extended period of time while the engine is off.Enough battery reserve is left in the battery, to automatically detect starting effort with a key cycle and allows you to start your engine again. StarkPower is the only company that has this feature. This doesn’t leave you stranded or the headache to replace your battery. 

Model No.
Operating Voltage:
Cranking Amps: (CA)
Cold Cranking Amps: (CCA) 
Cell Balancing: 
Yes (Internal)
M6 (female)
5.9"(L) x 3.4"(W) x 3.7'(H),  (150mm(L) x 87mm(W) x 94m(H))
2.11lbs, (958g)
-22°F to +140°F, (-30°C to +60°C)

Motorcycles, Jetski, ATV, Quads, Snowmobile, Cars, Racing Vehicles.   

FREE charger/maintainer included with purchase.  Only use STARKPOWER’s lithium battery charger. Warranty voided if battery used with other chargers.  Using lead acid chargers that charge up to 16V, along with leaving them ON, will damage the Lithium battery.





StarkPower LiFePO Battery

Lead Acid Battery

Voltage Change:

Keeps Steady

Gradually Decreases

 Cycle Life:

>3,000 Cycles

 150 - 300 Cycles

Calendar Life:

About 10 years

About 1-2 years

 Usable Capacity:



 Self-discharge Rate/Month:


 About 30%

 Fast Charging Performance:



 Max. Discharge Current:



 Operating Temperature:

 -22°F  to +140°F, (-30°C to 60°C)

 -4°F  to +131°F, (-20°C to +55°C)


 Light (~1/3 of Lead Acid Battery)


 Installation Direction:

 Any Direction


 Safety Performance:


 Boil and Leak

 Impact on the Environment:

 Pollution- Free

 Serious Pollution

Up to 10 years. 
The StarkPower “Ultra” battery is designed with M6 screw terminals, this makes it easy to replace the stock lead-acid battery.

StarkPower batteries have a very low self-discharge rate. The “Ultra” batteries will last for over a year in storage.
1 Year Warranty

Make Year Model  Engine Size
Aprille 2011- 2012 Dorsoduro 1200cc
Aprilia 2002- 2003 ETV Caponord 1000cc
Aprilia 2001- 2004 RST Futura 1000cc
Aprilia 2009 RSV1000 Mile SP 1000cc
Aprilia 2004-2011 RSV 1000 R, Factory 1000cc
Aprilia 2001-2005 RSV 1000 Mille R 1000cc
Aprilia 2000-2010 RSV 1000 Mille 1000cc
Aprilia 2009-2010 Pegaso Strada, Factory Tail 1000cc
Aprilia 2003-2011 Tuono 1000 R, Factory 1000cc
Aprilia 2011-2012 Turono V4R 1000CC
Aprilia 2001-2003 SL Falco 1000cc
Aprilia 2009-2011 MANA850, GT 850cc
Aprilia 2009-2011 Shiver 750cc
Aprilia 2009-2011 Dorsoduro 750cc
Aprilia 2009-2012 Pegaso Strada, Factory, Trail 650cc
Aprilia 2000-2010 RXV550 550cc
Aprilia 2000-2010 SVX550 550cc
Aprilia 2000-2010 RXV450 450cc
Aprilia 2000-2010 SVX450 450cc
ATK 1991-1995 All Electric Start  
BIMOTA 1997-1999 SB6R 1100cc
BIMOTA 1996-1999 YB11 1000cc
Bimota 1998-2000 SB8R 996cc
Bimota 1998-2001 SB8RS 996cc
BMW 2009-2011 K1300R, S 1300cc
BMW 2009-2010 K1300S 1300cc
BMW 2005-2009 K1200R, S 1200cc
BMW 2005-2012 R1200GS, S, R 1200cc
BMW 2009-2012 R1200GS Adventure 1200cc
BMW 2010-2011 HP2 Sport / Megamoto 1200cc
BMW 2009-2012 S1000RR 1000cc
BMW 2009-2011 S1000RR DWA 1000cc
BMW 2008-2012 F800ST, GS 800cc
BMW 2008-2012 F650GS 800cc
Buell 1996-1999 S1 Lightning 1200
BUELL 2004-2010 XB12R Firebolt, XB12S Lightning 1200cc
BUELL 2004-2011 XB12Ss, Scg, Lightning 1200cc
BUELL 2007-2010 XB12X Ulysses 1200cc
BUELL 2008-2010 1125R, 1125CR 1125cc
BUELL 2002-2010 XB9R Firebolt, XB9S Lightning 984cc
BUELL 2000-2009 Blast 500cc
CCM 1996-2001 All Electric Start 600cc
Harley-Davidson 2004-2012 XL, XLH (Sportster) 1200 1200cc
Harley-Davidson 2002-2007 VRSC V-ROD 1130cc
Harley-Davidson 2004-2012 XL, XLH (Sportster)  883cc
Honda 2003-2011 ST1300, A, P 1300cc
Honda 2003-2011 VTX1300C, R, S, Retro 1300cc
Honda 2009-2011 VT1300CS, CR, CXA Fury 1300cc
Honda 2010-2011 VFR1200F 1200cc
Honda 2010-2011 CB1100 1100cc
Honda 1991-2002 ST1100, ABS-TCS, 1100A 1100cc
Honda 2009-2011 CB1000R 1000cc
Honda 2002-2009 VFR800, A Interceptor, ABS 800cc
Honda 1998-2001 VFR800FI, Interceptor 800cc
Honda 1990-1997 VFR750F 750cc
Honda 2010-2011 VT750RS, C2B 750cc
Honda 2007-2009 VT750C, CA, C2 Shadow Spirit, Aero 750cc
Honda 2004-2006 VT750C, CA, C2 750cc
Honda 2001-2003 VT750DC, A, B Shadow Spirit 750cc
Honda 1998-2000 VT750C Shadow 750cc
Honda 1998-2002 VT750CD, CD2 Shadow Deluxe 750cc
Honda 2010-2011 NT700V 700cc
Honda 2009-2011 DN-01 680cc
Honda 1999-2011 NT650V 650cc
Honda 1999-2011 SLR650 650cc
Honda 1999-2011 Vigor 650cc
Honda 1993-2010 XR650L 650cc
Honda 2001-2011 CBR600F4i, 600RR 600cc
Honda 1987-2000 CBR600 600cc
Honda 2009-2011 SM250 250cc
Honda 2009-2010 CBF1000F 100cc
Husaberg 1997-2000 All 50cc
Hyosung 2010-2011 XCF 700cc
Hyosung 2009-2011 GV650, SE 650cc
Hyosung 2009-2011 GT650, R, S 650cc
Hyosung 2009-2011 GT250, R 250cc
Hyosung 2009-2011 GV250 250cc
Kawasaki 2004-2011 VN2000-A Vulcan 2000cc
Kawasaki 2009-2011 VN1700 Voyager, Nomad, Vaquero 1700cc
Kawasaki 2003-2009 D, Nomad 1600cc
Kawasaki 2004-2009 VN1600-B, Vulcan Mean Streak 1600cc
Kawasaki 1996-2009 VN1500-D, E, N Vulcan Classic 1500cc
Kawasaki 2002-2003 VN1500-P, Vulcan Mean Streak 1500cc
Kawasaki 1999-2005 Vulcan Nomad, Drifter 1500cc
Kawasaki 2008-2011 ZG1400 Concours 1400cc
Kawasaki 2006-2011 ZX14 Ninja 1400cc
Kawasaki 2000-2005 Ninja ZX-12R 1200cc
Kawasaki 2009-2011 ZRX1200 DAEG 1200cc
Kawasaki 2001-2005 ZRX1200R 1200cc
Kawasaki 2005 ZX12R 1200cc
Kawasaki 2002-2005 ZZR1200 1200cc
Kawasaki 1999-2000 ZRX1100 1100cc
Kawasaki 1995-2001 ZX1100-C Ninja ZX-11 1100cc
Kawasaki 2003-2011 Z1000 1000cc
Kawasaki 2006-2011 Vulcan 900 Classic 900cc
Kawasaki 2003 ZX900-E,F Ninja (ZX-9R) 900cc
Kawasaki 1998-1999 ZX900-C Ninja (ZX-9R) 900cc
Kawasaki 1995-2006 Classic, Drifter 800cc
Kawasaki 2009-2011 Z750 (EU) 750cc
Kawasaki 2005-2006 ZR750 (Z750) 750cc
Kawasaki 2003 ZR-7, S 750cc
Kawasaki 1996-2003 ZX750-P Ninja ZX-7R700 KZ700-A 750cc
Kawasaki 2009-2011 ER6n 650cc
Kawasaki 2008-2011 KLE650 Versys 650cc
Kawasaki 2006-2011 Ninja 650R 650cc
Kawasaki 2002 W650 650cc
Kawasaki 2003-2006 ZX636-B, C Ninja ZX-6R 636cc
Kawasaki 2008-2011 ZX600 FA Ninja ZX-6R 600cc
Kawasaki 1993-2002 ZX600-E, F Ninja ZX-6, 6R 600cc
Kawasaki 1998-2008 ZX600-G, J Ninja ZX-6R 600cc
Kawasaki 2003-2006 ZX600-K, M, N Ninja ZX-6RR 600cc
Kawasaki 2002-2009 ZZR600 600cc
Kawasaki 1995-2011 EX250, Ninja 250R 250cc
KTM 2009-2011 RC8 1090cc
KTM 2003-2010 Adventure 990cc
KTM 2003-2011 Super Duke 990cc
KTM 2009-2011 Supermoto 990 990cc
KTM 2009-2011 Superenduro 950cc
KTM 2009-2011 Duke 690cc
KTM 2009-2011 Enduro R 690cc
KTM 2009-2011 Supermoto 690 690cc
KTM 2003-2008 Duke II, LC4, Adventure 640cc
KTM 2003-2009 SMC, SXC 625cc
Kymco 2009-2010 Venox 250 250cc
Moto Guzzi 2009-2011 1200 Sport 1200cc
Moto Guzzi 2009-2010 Breva 1200 1200cc
Moto Guzzi 2009-2011 Norge 1200cc
Moto Guzzi 2009-2011 Stervio 1200cc
Moto Guzzi 2005-2011 Breva, Griso 1100cc
MV Agusta 2006-2010 Brutale 1000cc
MV Agusta 2005-2010 F4 Series 1000cc
MV Agusta 2000-2001 F4 Series 1000cc
Suzuki 2008-2011 VLR1800(C109R) 1800cc
Suzuki 2006-2011 VZR1800 (M109R) 1800cc
Suzuki 1998-2011 VL1500 Intruder, Boulevard C90 1500cc
Suzuki 2009-2011 VZ1500 Boulevard M90 1500cc
Suzuki 1987-2011 VS1400GL Intruder, GLP, S83 1450cc
Suzuki 2008-2011 GSX1300BK B-King 1300cc
Suzuki 2000-2011 GSX1300R Hayabusa 1300cc
Suzuki 2007-2011 GSF1250S Bandit 1250cc
Suzuki 1997-2005 GSF1200S Bandit 1200cc
Suzuki 2002-2011 DL1000 V-Strom 1000cc
Suzuki 2001-2011 GSX-R1000 1000cc
Suzuki 2003-2007 SV1000, S 1000cc
Suzuki 1998-2003 TL1000R 1000cc
Suzuki 1997-2001 TL1000S 1000cc
Suzuki 2001-2010 VL800 Intruder Volusia 800cc
Suzuki 1997-2008 VZ800 Marauder 800cc
Suzuki 2000-2011 GSX-R750 750cc
Suzuki 1998-2006 GSX750F Katana 750cc
Suzuki 2004-2011 DL650 V-Strom 650cc
Suzuki 1998-2011 DR650 650cc
Suzuki 2008-2011 GSX650F 650cc
Suzuki 2009-2011 SFV650 Gladius 650cc
Suzuki 2008-2011 SV650, S 650cc
Suzuki 2003-2010 SV650A, SA 650cc
Suzuki 1999-2002 SV650 650cc
Suzuki 1996-2003 GSF600S Bandit 600cc
Suzuki 1997-2011 GSX-R600 600cc
Suzuki 1998-2006 GSX600F Katana 600cc
Triumph 2000-2004 Trophy 1200cc
Triumph 2005-2010 Speed Triple 1050cc
Triumph 2005-2010 Sprint ST 1050cc
Triumph 1999-2004 Sprint ST 955cc
Triumph 2001-2004 Sprint RS 955cc
Triumph 2002-2006 Tiger 955cc
Triumph 2006-2007 Scrambler, Booneville 900cc
Triumph 2003-2011 Thruxton 900cc
Triumph 1999-2001 Tiger 900cc
Triumph 2009-2011 America 865cc
Triumph 2009-2011 Bonneville, T100, SE 865cc
Triumph 2009-2011 Scrambler 865cc
Triumph 2009-2011 Speedmaster 865cc
Triumph 2001-2005 Bonneville 800cc
Triumph 2003-2005 Speedmaster 800cc
Triumph 2009-2011 Street Triple, R 675cc
Triumph 2003-2005 Daytona 600/650, Speed Four 600cc
Triumph 2000-2003 TT600 600cc
Yamaha 2009-2011 VMAX 1700cc
Yamaha 2007-2011 XJR1300 (EU) 1300cc
Yamaha 2011 XT1200Z Super Tenere 1200cc
Yamaha 1986-1999 XV1100 Virago (All) 1100cc
Yamaha 2006-2011 FZS1000 FZ1 1000cc
Yamaha 2004-2011 YZF-R1 1000cc
Yamaha 2009-2011 XVS95CT, Y V Star 950 950cc
Yamaha 2010-2011 TDM900 (EU) 900cc
Yamaha 1995-1999 TRX850 850cc
Yamaha 2011 FZ8 800cc
Yamaha 2006-2011 YZF-R6 (excl R6 S) 600cc
Yamaha 1996-2007 YZF600R 600cc
Feature: 700220599185
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