PowerLite Lithium Benefits over Lead Acid: Up to 7 times lighter Life expectancy of up to 10 years Charges up to 10 times faster Much more Stable voltage and current output 16 Volt provides faster cranking, runs pumps and fans more efficiently Always provides ignition with proper voltage for peak spark.Features:Carbon Fiber CaseRemovable SAE post for bolt/crimp terminal cable connection.A "Green" product; enviromentally safeRoHs and UN DOT Safety approved