The EV 9-12 T2 with Re-battery is a 12-volt, 8 amp-hour (Ah) acid-lead battery manufactured by EUROPOWER. It utilizes AGM (absorbed glass mat) technology, making it a maintenance-free battery which is highly resistant to vibration, shocks, and other extreme external conditions. This battery is designed for extended backup in emergency power systems and designed for a long shelf life and maintenance-free operation time.