C&D Technologies C&D Dynasty brand new genuine oem UPS batteries are the excellent choice for all Critical Power Standby Emergency Power Uninterruptible Power Supply Backup needs. High Max Rate Sealed AGM Maintenance-Free batteries for UPS Backup Standby Power Uninterruptible Power Supply in military, industrial, commercial and small business applications. Max Rate series UPS12-100MR, UPS12-150MR, UPS12-210MR, UPS12-300MR, UPS12-350MR, UPS12-400MR, UPS12-490MR, UPS12-490MRLP, UPS12-540MR, UPS6-620MR replacement for High Rate Max series, UPS12-100, UPS12-100FR, UPS12-140, UPS12-140FR, UPS12-170, UPS12-270FR, UPS12-200, UPS12-200FR, UPS12-225, UPS12-225FR, UPS12-270, UPS12-270FR, UPS12-310, UPS12-310FR, UPS12-370, UPS12-370FR, UPS12-475, UPS12-475FR, UPS12-530, UPS12-530FR, UPS6-620, UPS6-620FR, MR12-150, MR12-210, MR12-300, MR12-350, MR12-400, MR12-490, MR12-540, High Power Series HPS12-125, HPS12-170, HPS12-250, HPS12-290, HPS12-330. 3 year warranty with 10 year design life, qualify for FREE ground shipping.