Sentry Lite PM445-4 Volt 4.5 Ah SLA Sealed Lead Acid AGM Rechargeable Replacement battery Genuine KEYKO - F1 Terminal Genuine KEYKO 4 Volt 4.5Ah - Fresh Production and REAL 4.5 Amp / 20 HR Battery - Maintanence Free Spill-Proof Design Trouble-Free, Safe Operation In Any Orientation - Valve Regulated Lead Acid VRLA Terminal F1 Worldwide Leader Brand , UL Listed & ISO 9001 for Quality Assurance and Certificated with ISO 14001 and OHSAS 18001 , Security and Enviroment , and so many Other Certifications and Awards KEYKO AGM High Standard Absorbed Glass Material separators and ABS Shock Resistant Case RUGGED CONSTRUCTION gives to KEYKO Batteries Between 3 to 5 Years of Floating Life. Each battery carry the best technology and performance. KEYKO High Discharge Design , Long Expected Service Life and Wide Operational Temperature range : Discharge: -40 C to +60 C (-40 F to +140 F), Recharge Temperature: -20C to +50 C (4 F to 122 F) Suitable for any Emergency Light Model & Lighting , replacing with Better performance any OEM Battery Brand with same Size and Capacity existing in the market