G10 power ratings:

14.8v (Stock voltage)
Music ratings:
With 200a of available alternator charge at a constant 14.8v will support 7500w dropping into the low 13s on a variable music load 
stand alone C ratings:
40c dropping to 13v on a 5-10 second burp
60c dropping to 11.5v on a 3 second burst
 
15.5v (High voltage) 
Music ratings:
With 200a of available alternator charge at a constant 15.5v will support 10,000w dropping into the low 13s on a variable music load
stand alone C ratings:
60c dropping to 13v on a 5-10 second burp
100c dropping to 11.5v on a 3 second burst
 
Battery Size : 8.5” wide x 7” deep x 8” tall to top of terminal
The nominal voltage is 14.4v (2.4v x 6 cells)
20K cycle life (based on full charge and discharge).
16v max charge voltage
11v max discharge voltage
Recommended Usable Operating range is 13-16v. Below 13v is under 30% SOC and the voltage drops off very quickly under load. If you start seeing voltage in the 12s TURN IT DOWN and add another battery. 14.8v starting/charging is the lowest voltage we recommend using these batteries.