Nominal Voltage - 12 volts

Amp hour capacity at 20 hour rate - 125 amp hour

Reserve Capacity at 25 amp discharge rate - 195 minutes

Reserve Capacity at 15 amp discharge rate - 340 minutes

Reserve Capacity at 8 amp discharge rate   - 688 minutes

Dimensions (inches) - Length=12.90*, Width= 6.75, Height= 9.27*

Dimensions (mm) - Length=328,  Width=172,  Height=236

Weight  - 69 pounds / 31.4 kilograms

Recommended charge voltage  -Bulk Charge 14.2 – 14.6 volts

Absorption/Acceptance Charge 14.2 - 14.6 volts

Float Charge 13.1 to 13.4 volts

Recommended Charge Amperage - Up to 100% of the rated amp hour capacity

Self Discharge Rate - 2% per month at 77°F (25°C)

Operating Temperature  - -50° to 150° F (-45 to 65.5 C)

Cycle life - 1,100 cycles to 50% DOD, 500 cycles to 100% DOD

Warranty - Refer to manual for warranty information by application

GPL-31XT Charging Instructions and Voltages:

Bulk Charge Voltages: 14.20 - 14.60
Absorbtion Charge Voltages: 14.20 - 14.60volts
Float Charge Voltages: 13.10 - 13.40
The GPL-31XT is designed for charging amperages up to 312.5 amps or 250% of the rated Amp Hour Capacity due to low battery internal resistance.

What are Instant Amps?
Instant amps are a measure of the power discharged from a battery in .2 seconds, to your RV. This measurement allows you to truly see the power these batteries deliver to your starter motor, and why the RV starts up so well with a Lifeline AGM Battery. There is true power inside a Lifeline® Starting Battery or a Lifeline® Deep Cycle Battery.