Also known as: BP4-6, BP4.5-6, BP5-6, GP645, DM6-4.2, S306/4 S, FG10451, HGL4-6A, PE6V4.5, HZS06-4.5, HP4-6, WP4-6, WP4.5-6, WP5-6, ES4-6, LC-R064R5P, PM 6-4.5, PS-640, RT645, RT650, RT655, SB6-4.0, SB6-4.2, SB6-4.5, SB6-5.0, UL4.5-6, UL5-6, CP642, NP4-6, Y4-6. Features & benefits include: -3-5 year life gives you a long lasting battery. -Quality tested by an independant tester, Ener Sys batteries are UL recognized -Operates in any position, this battery can even be used upside down giving you the versatility to use it anywhere. -The high quality construction & method used for sealing this battery ensures no leakage from the case or terminals. -Holds 97 of charge after 1 month & 85 of charge after 6 months, a great advantage as the battery will still have a lot of charge after not being used for a while. Typical applications include: -Cable television -Communications/radio equipment -Computer backup -Emergency lighting -Power tools -Security/fire alarm systems -UPS -Solar Powered Systems -Toys & models -Medical equipment -Remote telemetry