Shorai LFX14A5-BS12 Lithium Battery Extremely Light Weight, 1/5th the weight of Lead-Acid Higher Voltage and more CCA provides better starting performance Longer Lifespan - Lithium provides 1.5x to 2x the life of lead acid Makes maintenance easy - Extremely low self discharge rate and can be charged with lead acid charger 3 year Prorated Warranty - First year free replacement