12V BCI Group 31 AGM Powercell Battery.
Can be used as a reserve and/or starting battery.

Specs:
Voltage : 12V
Wattage: 4000W / 5000W+
MAX Amps: 5,000
CA: 1565A
Ah: 127
RC: 273min
 
Dimensions:
Weight Lbs.: 78.25 lbs
Weight Kgs.: 35.5 kgs
Length: 12.99 in
Height: 8.43 in
Width: 6.81 in
 
M6 Terminal Hardware Included.