OMRON BUB300R is the genuine OMRON replacement battery pack for the BU200RW, BU300RW UPS. It uses sealed lead-acid (VRLA) cells (8Ah/12V×6) and is non-spillable, so it ships by air as non-restricted cargo.UPS batteries wear out after a few years. When your BU200RW shows a battery-replacement alarm or runtime drops, a genuine BUB300R 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 BUB300R Fits UPS models BU200RW, BU300RW 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 DC72V(12V×6pcs) Capacity / voltage × quantity 8Ah/12V×6 Charging time 8 hours (24 hours when expanding) 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 393 x Depth 103 x Height 152 Weight 16.2kg Included accessories Instruction manual, 2 battery pack fixing screws (for spare), 1 battery usage start date sticker Outer dimensions of packing box (mm) Width 420 x Depth 270 x Height 175 Packing weight About 17.1kg