• LFX Duration batteries are recommended for those who want the strongest possible cranking performance and lifespan• Ultra light. 1/5 the weight of lead-acid batteries on average• Zero sulfation, for longer service life• Holds unloaded charge for one year without maintenance• Drop-in replacement for your OEM battery• Military spec carbon composite case• Faster cranking for better starts• Super-fast recharge rate• No explosive gasses during charge, no lead, no acid• Environmentally friendly, just discharge and dispose• Japanese engineering• 3-year manufacturers warranty