OMRON BYB80S is the genuine OMRON replacement battery pack for the BY80S UPS. It uses sealed lead-acid (VRLA) cells and is non-spillable, so it ships by air as non-restricted cargo.UPS batteries wear out after a few years. When your BY80S shows a battery-replacement alarm or runtime drops, a genuine BYB80S 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 BYB80S Fits UPS models BY80S 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 Product model number BYB80S Weight about 4.3kg