APC Replacement Battery Cartridge #63 - UPS battery - 1 x battery - lead acid - for P/N: RCAAUDIO15-5M, S10, S10BLK, S15, S15BLK, S20BLK

Disconnected battery notification. Warns when a battery is not available to provide backup power. Intelligent battery management. Maximizes battery performance, life, and reliability through intelligent, precision charging. Battery replacement without tools. Enables fast battery replacement, lowering Mean Time to Repair (MTTR). Temperature-compensated battery charging. Prolongs battery life by regulating the charge voltage according to battery temperature.