Special thin separators allow two extra plates per cell to be installed, for a 30% improvement in cranking performance

Endurance and lab tested to provide long, reliable performance in a heavy-duty O.E.M.-style case, the Shocker Gel Batteries from Twin Power™ are the next generation of batteries. Featuring nano-gel technology that's factory-activated and sealed, the...

Endurance and lab tested to provide long, reliable performance in a heavy-duty O.E.M.-style case, the Shocker Gel Batteries from Twin Power™ are the next generation of batteries. Featuring nano-gel technology that's factory-activated and sealed, the...

Endurance and lab tested to provide long, reliable performance in a heavy-duty O.E.M.-style case, the Shocker Gel Batteries from Twin Power™ are the next generation of batteries. Featuring nano-gel technology that's factory-activated and sealed, the...

Twin Powerâ„¢ Shockerâ„¢ Batteries are endurance and laboratory tested for long and reliable performance with a heavy-duty O.E.M.-style case.This Part Fits:YearMakeModelSubmodel2021-2023Harley-DavidsonRA1250 Pan America...

Twin Power™ Shocker™ Batteries are endurance and laboratory tested for long and reliable performance with a heavy-duty O.E.M.-style case.This Part Fits:YearMakeModelSubmodel2018-2021Harley-DavidsonFLHC Heritage Classic...

Twin Power™ Shocker™ Batteries are endurance and laboratory tested for long and reliable performance with a heavy-duty O.E.M.-style case.This Part Fits:YearMakeModelSubmodel1996Harley-DavidsonFLHRI Road KingBase1980-1984,1987-1993Harley-DavidsonFLHS...

Twin Power™ Shocker™ Batteries are endurance and laboratory tested for long and reliable performance with a heavy-duty O.E.M.-style case.

Twin Power™ Shocker™ Batteries are endurance and laboratory tested for long and reliable performance with a heavy-duty O.E.M.-style case.This Part Fits:YearMakeModelSubmodel1986-1990Harley-DavidsonFLST Heritage SoftailBase1988-1990Harley-DavidsonFLSTC...

Twin Powerâ„¢ Shockerâ„¢ Batteries are endurance and laboratory tested for long and reliable performance with a heavy-duty O.E.M.-style case.This Part Fits:YearMakeModelSubmodel2021-2023Harley-DavidsonRA1250 Pan America...

Twin Power™ Shocker™ Batteries are endurance and laboratory tested for long and reliable performance with a heavy-duty O.E.M.-style case.This Part Fits:YearMakeModelSubmodel2002-2006Harley-DavidsonVRSCA V-RodBase2007Harley-DavidsonVRSCAW...

The Twin Power™ Premium MAX Factory-Activated AGM Batteries are the most advanced lead-acid type battery available. Supplied factory-activated, filled, sealed and charged, these batteries offer extreme vibration resistance, heavy-duty terminals and...