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AGM-GPL31T GPL 3100T Lifeline AGM Deep Cycle Marine Battery 12 Volt
Charges deeper, faster and without maintenance! Will not spill or leak!
$340.00

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Description of Lifeline GPL-31T Marine AGM Battery:

Lifeline GPL 31MT Deep Cycle Marine AGM Batteries are designed to be Deep Cycle Marine/RV Battery replacements for OEM parts. These batteries are in a group 31 standard sizing. This battery will replace any type or group 31, with an identically sized battery.

Deep Cycle Marine/RV Battery The GPL-31T is a high performance, Mil-Spec, AGM battery, produced in the United States. Due to the Lifeline Battery's quality construction, it has an industry leading 2% per month self discharge rate at 77°F (25°C), compared to 10%+ for conventional batteries. Coast Guard approved, DOT Haz Mat Exempt, and longer lifespans than conventional batteries. Warrantied installations include marine, yacht, and other seafaring applications.

GPL-31T 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-31T is designed for charging amperages up to 105 amps or 100% of the rated Amp Hour Capacity due to low battery internal resistance.
Lifeline Battery
Part Number
Cold Cranking Amps Rated Cap.
Amp. Hrs
20 Hr Rate
Minutes of Discharge
68° 32° 25 Amps 15 Amps 8 Amps
GPL-24T 800 680 550 80 149 259 524


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