Tower Housing material: Metal 7 Ah Black CyberPower BPSE72V45A external battery module significantly extends runtime when used with a compatible CyberPower UPS. With rugged, industrial-grade metal construction, it can be installed even in demanding environments. - Tower Form Factor- Built-in charger for External Battery Module(EBM)- User-replaceable Batteries- Daisy-chain Expansion- Metal HousingWith battery hot-swap solution, the batteries modules can provide service continuity in all situations while keeping connected mission-critical equipment powered and fully operational. Achieving ultimate peace of mind that high availability and maintenance flexibility will never be compromised during battery replacement or other upgrades Design Housing material Metal Product colour Black Form factor Tower Battery Battery voltage 12 V Battery capacity 7 Ah Number of batteries supported 12 Operational conditions Operating altitude 0 - 1500 m Storage relative humidity (H-H