Sealed, maintenance free, lead-acid battery, VRLA type, with 5 years designed life (according to Eurobat: 3-5 years - Standard Commercial). Designed for standby use in uninterruptible power supplies (UPS). The internal resistance of this battery is lower than for EP 7 - 12 but container dimensions are the same. That is why EV 9 - 12 has higher capacity and much better constant power and constant current discharge characteristics, especially for short discharge times (5-20 min.) ATTENTION! This battery is equipped with T2 type terminals: 7.85 x 6.35 x 0.8 mm