Batteries GPL-4D-A Lifeline AGM Deep Cycle Battery 12V Group 4D

The Lifeline GPL-4D-A is a high-performance AGM (Absorbed Glass Mat) deep cycle battery designed for demanding marine and RV applications. Built to military specifications and manufactured in the United States, this 12-volt Group 4D battery delivers reliable power with exceptional durability.

Key Features:

• AGM technology for maintenance-free operation—no water addition required
• Industry-leading 2% per month self-discharge rate at 77°F for extended storage capability
• Deep cycle design optimized for repeated discharge and recharge cycles
• Military specification construction for superior quality and reliability
• SAE automotive-type terminals for easy installation and universal compatibility
• Spill-proof sealed design allows mounting in any position except inverted
• Exceptional vibration resistance for harsh marine and mobile environments

Lifeline AGM batteries utilize advanced construction techniques that provide faster charging, longer cycle life, and superior performance compared to conventional flooded batteries. The GPL-4D-A is ideal for house banks, trolling motors, windlasses, and other high-demand applications where dependable power is critical.