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Batteries GPL-31T Lifeline AGM Deep Cycle Group 31 Marine Battery 12V

Manufacturer

Batteries

<h3>About Midstate Battery</h3><p><strong>Midstate Battery</strong> has built its reputation as one of New England's leading independently owned and operated battery specialists. With the guiding philosophy that <em>&quot;Batteries for Everything&quot;</em> is more than a slogan — it's a promise — the company has spent decades delivering reliable power solutions for virtually every application imaginable, from everyday passenger vehicles to heavy commercial equipment and specialty markets.</p><p>Founded in 1986 and led by owner Steve Merone and his son Steve Jr., Midstate Battery has assembled a staff with more than 100 years of combined industry experience. Whether a customer needs help matching a legacy battery, configuring a custom cable assembly, or identifying the right chemistry for a demanding deep-cycle application, the team's expertise is always accessible. The company stocks over 25,000 different types of <a href="/7249-batteries-batteries-201357">batteries</a> and battery-related products, covering automotive, commercial, marine, and specialty segments.</p><h3>A Wide-Ranging Battery Selection</h3><p>What truly sets Midstate Battery apart is the sheer breadth of its catalog. The company distributes first-class batteries from the industry's most respected names, including East Penn, Lifeline, NorthStar, Optima, Power-Sonic, and Odyssey. It also carries exclusive house lines — the Midstate™ and Sportsman™ brands — spanning marine starting, marine/RV dual-purpose, and marine/RV deep-cycle applications.</p><ul><li><strong>Automotive Batteries:</strong> A wide selection for standard cars, stop-start technology vehicles, and classic car applications.</li><li><strong>Marine &amp; RV Batteries:</strong> Wet cell, AGM, gel, pure lead, and lithium options designed for rough waters and remote roads alike.</li><li><strong>Commercial Batteries:</strong> High-capacity units built for construction equipment, HD vehicles, and commercial fleets.</li><li><strong>Golf Cart &amp; Deep Cycle:</strong> Personalized, one-on-one service to match the right deep-cycle battery to your specific cart or equipment.</li><li><strong>Specialty &amp; Industrial:</strong> Hearing aid, cordless phone, sealed lead acid, and countless other specialty cell formats.</li></ul><h3>Quality, Value, and Personalized Service</h3><p>Midstate Battery's commitment to quality goes hand in hand with competitive pricing and a customer-first mindset. The team works hard to keep the most common battery types in stock for same-day pick-up, and when a rare or custom battery is needed, they source it and get it to the customer when and where it's needed. For anyone who needs a reliable, knowledgeable partner for all things battery-related, Midstate Battery stands out as a trusted destination.</p>

Part Number

GPL-31T
06/01/2036 7:40 PM
Sale Price

$687.92

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Batteries GPL-31T Lifeline battery 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 Group 31 battery delivers reliable 12-volt power with exceptional durability and longevity.

Key Features:

  • Advanced AGM construction eliminates acid spills and allows mounting in any position
  • Industry-leading low self-discharge rate of only 2% per month at 77°F (25°C)
  • Military specification design ensures superior quality and reliability
  • Deep cycle capability provides sustained power for extended periods
  • Includes brass terminal bolts and washers for corrosion-resistant connections
  • Maintenance-free operation with no water addition required
  • Vibration and shock resistant construction ideal for marine environments

This Group 31 battery is ideal for boats, RVs, and other applications requiring dependable deep cycle performance. The AGM technology provides faster recharging, longer service life, and superior performance compared to traditional flooded batteries.

Products specifications

Ah

105

Battery Group

31

Cranking 30 Seconds

750

Reserve Capacity

195

Size

12.9" x 6.75" x 9.27" H

Fast delivery

It took Overton 1 week to tell me that this item was out of stock so I had to purchase from another place. Easy to order from boatplicity.

First time buying here, process was smoth and fast.

PERFECT!!!

Great

Had what I wanted for a good price.

great prices

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