Battery type – 12v 9amp 4d rechargeable sealed lead acid deep cycle battery with button style terminals awaspplication – alarm system, emergency lighting system, firefighting equipment, standby power supply and telephone switching system, uninterrupted power supply, telecommunication system, computer standby power supply system, solar and wind power storage etc... rugged design – the battery case is made from a non-conductive abs plastic, strong resistance to shock, vibration, chemicals, weather and heat. very easy to install and requires no maintenance. warranty – each npp deep cycle battery will come with a one year warranty. so you can purchase with confident.