OMRON BP50LT2 is the genuine OMRON replacement battery pack for the BZ35LT2, BZ50LT2 UPS. It uses sealed lead-acid (VRLA) cells (5Ah/12V×1) and is non-spillable, so it ships by air as non-restricted cargo.UPS batteries wear out after a few years. When your BZ35LT2 shows a battery-replacement alarm or runtime drops, a genuine BP50LT2 pack restores the original backup time. Not sure which pack fits? Check our UPS battery cross-reference or send us your UPS model.Quick facts for international buyers Model BP50LT2 Fits UPS models BZ35LT2, BZ50LT2 Battery type & shipping Sealed lead-acid (VRLA), non-spillable. Ships by air as “not restricted” under IATA Special Provision A67 (terminals protected, marked NON-SPILLABLE). Genuine part Genuine OMRON replacement pack (not a third-party re-cell). Market Genuine new product for the Japanese market. Manuals and labels are in Japanese. Need help? See the OMRON / Mitsubishi UPS battery cross-reference, or contact us with your UPS model and country and we will confirm compatibility before you order. Manufacturer specifications Battery type Sealed lead-acid (VRLA) (long life type) Voltage DC12V Capacity / voltage × quantity 5Ah/12V×1 charging voltage 13.65V±0.15V Charging time 12 hours Ambient temperature 0℃~40℃ Ambient humidity 25%~85%RH Storage ambient temperature -15°C to 50°C *Store with the battery fully charged Storage ambient humidity 10%~90%RH Storage period 6 months * Store with the battery fully charged. External dimensions (mm) Width 94 x Depth 72 x Height 108 Weight About 1.9kg Included accessories Instruction manual, 1 spare screw, set screw for battery replacement cover Packing weight About 2.5kg