6V 4.5Ah PS-640, PS640F1, UB645 Replacement SLA Battery NEW! (1) 6V 4.5AH (SLA) SLABattery Width 1.86 Height 3.94" Weight 1.60 Lb UPS Batteries APC 200DL APC AP200 (Requires 2 Batteries) APC AP2000 (Requires 2 Batteries) APC AP370 (Requires 4 Batteries) APC AP400 (Requires 4 Batteries) APC BACK-UPS 1250B (Requires 2 Batteries) APC BACK-UPS 200B (Requires 2 Batteries) APC BACK-UPS 250 (Requires 2 Batteries) APC BACK-UPS BK1250B (Requires 2 Batteries) APC BACK-UPS BK200 (Requires 2 Batteries) APC BACK-UPS BK200B (Requires 2 Batteries) APC RBC1 APC SMART-UPS 250 (Requires 2 Batteries) APC SMART-UPS SU250 (Requires 3 Batteries) APC SMART-UPS SU370 (Requires 4 Batteries) APC SMART-UPS SU400 (Requires 4 Batteries) Deltec PRB250 (Requires 2 Batteries) Deltec PRB400 (Requires 2 Batteries) Deltec PRB420 (Requires 2 Batteries) Easy Option 250VA (Requires 2 Batteries) Elgar IPS400 (Requires 4 Batteries) Elgar IPS600 (Requires 4 Batteries) Leadman LU-650A MGE ES4 SL Waber 420MT (Requires 2 Batteries) SL Waber PowerHouse 280T SL Waber PowerHouse 500 Tripp-Lite Touchmaster 420 (Requires 3 Batteries) Unison 600 (Requires 4 Batteries) Unison DP1000 (Requires 10 Batteries) Unison DP800 (Requires 4 Batteries) Alarm Batteries ADI 25389 ADI 25404 Volts 6 Amp Hour 4.5 Chemistry SLA / AGM Terminal F1 Quantity 1 Length 2.76" (1) 6V 4.5AH (SLA) SLABattery --- Volts 6 Amp Hour 4.5 Chemistry SLA / AGM Terminal F1 Quantity 1 Length 2.76" Width 1.86 Height 3.94" Weight 1.60 Lb UPS Batteries ---APC 200DL ---APC AP200 (Requires 2 Batteries) ---APC AP2000 (Requires 2 Batteries) ---APC AP370 (Requires 4 Batteries) ---APC AP400 (Requires 4 Batteries) ---APC BACK-UPS 1250B (Requires 2 Batteries) ---APC