SPECIFICATIONS BATCAP MODEL 400 Terminal Torque Must Not Exceed 35 in/lbs. **DO NOT OVER TORQUE** Ambient peak starting amps     400 amps Constant current discharge / amps to 1.67 @ 25C 5 Min          10 Min          15 Min          30 Min          60 Min          5 Hr 28.67             18.69             13.86               7.35                4.1              1.0 Cycle Life          3 to 6 yrs Number of Cells  -  6 Fast Charging Rate                      Float Chargers 2.45 to 2.50 Volts Per Cell            Per Cell 2.27 to 2.35 Volts 12 Volts 14.70 to 15.o Volts         12 Volts : 13.62 to 14.0 Volts Specifications 12 volt 5 Ah 2 in parallel 12 volt 10 Ah 2 in series 24 volt 5 Ah  Peak Starting Amps 400 800 400 Capacity        at 5 Amps 1 hour 2 hours 1 hour   at 28.67 Amps 5 minutes 10 minutes 5 minutes Cycle Life 3 to 6 Yrs. 3 to 6 Yrs. 3 to 6 Yrs. Internal Resistance per cell 3 mΩ 1.5mΩ 6mΩ Number of Cells 6 12 12 Dimensions       Height - in. 3.14"     Width - in. 3.70"     Depth - in. 5.44"     Weight - lb. 5 lbs. 10 lbs. 10 lbs. The Model 400 definitely gives you more bang for the buck! This heavy hitter gives you a whopping 400 peak amps for 8 seconds! More than enough juice for even the most demanding situations. Weighing in at only 5 pounds, it opens up endless opportunities for installations and applications alike! The dimensions are H - 3.14"/ W - 3.70"/ D - 5.44". The suggested retail on the Model 400 is $229.00 making it extremely affordable when compared to the number of batteries and capacitors it replaces.