Superior Cranking Power - The high performance battery is up to 3-times as powerful as equally sized conventional batteries Longer Storage Life - The high performance battery will maintain a useable state of charge for over 2 years Deep-Discharge Recovery - Industry tests validate that the high performance battery can recover from extreme discharged conditions Full 1-Year Warranty - Including battery (no prorating on battery warranty) 1-Amp Charger Included - For faster recharging Power extension cord included - Charge Booster Pac from lighter receptacle in vehicle; use cord to maintain electronics memory when disconnecting vehicle battery Extra heavy-duty clamps with recessed jaws Extra long cables for hard-to-reach batteries