--- product_id: 92548279 title: "Lifeline GPL-6CT - 6 volt - 300AH Deep Cycle Battery" brand: "lifeline" price: "€ 2249.72" currency: EUR in_stock: true reviews_count: 7 category: "Lifeline" url: https://www.desertcart.pt/products/92548279-lifeline-gpl-6ct-6-volt-300ah-deep-cycle-battery store_origin: PT region: Portugal --- # 1200 min @ 15A discharge 6V deep cycle power Coast Guard approved marine grade Lifeline GPL-6CT - 6 volt - 300AH Deep Cycle Battery **Brand:** lifeline **Price:** € 2249.72 **Availability:** ✅ In Stock ## Summary > ⚡ Power your journey with Lifeline — where endurance meets elite craftsmanship! ## Quick Answers - **What is this?** Lifeline GPL-6CT - 6 volt - 300AH Deep Cycle Battery by lifeline - **How much does it cost?** € 2249.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/92548279-lifeline-gpl-6ct-6-volt-300ah-deep-cycle-battery) ## Best For - lifeline enthusiasts ## Why This Product - Trusted lifeline brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Military-Grade Durability:** Built to meet rigorous mil-spec standards and trusted by US Military vehicles for ultimate reliability. - • **Handcrafted American Quality:** Proudly made in the USA with meticulous craftsmanship ensuring premium performance and longevity. - • **Unmatched Deep Cycle Endurance:** Delivers up to 1200 minutes of reliable power at 15 amps—keep your adventures going longer. - • **Industry-Leading 5-Year Warranty:** Confidence backed by a robust warranty—invest in power that lasts and protects your gear. - • **Versatile Voltage Configurations:** Easily configure as 6V, 12V, 24V, or 48V to perfectly match your RV or marine setup. ## Overview The Lifeline GPL-6CT is a 6-volt, 300AH deep cycle lead-acid battery designed for demanding marine and RV applications. Coast Guard approved and mil-spec tested, it offers exceptional reserve capacity with up to 1200 minutes of discharge at 15 amps. Handcrafted in the USA, it supports flexible voltage configurations and comes with a 5-year warranty, making it the trusted choice for professionals seeking reliable, long-lasting power solutions. ## Description The Lifeline GPL-6CT has been specifically manufactured for deep-cycle applications. All Lifeline batteries are Coast Guard approved and hand-made in the USA. The preferred battery choice for both Recreational Vehicles and Marine applications. All Lifeline batteries pass demanding mil spec requirements as they are onboard numerous US Military Vehicles. Designed to deliver industry leading reserve capacities and life-cycle capabilities. All Lifeline batteries are backed with an industry leading 5 year warranty. Review: High quality - These are high-quality, deep-cycle, and very dependable. At 6V they can be configured as 12V, 24V, or 48V application. Price per unit varies and can be obtained for $488 each including tax and shipping. Review: motorcoach replacement batteries - Was the only option for replacement!!! ## Features - Voltage: 6 Volts - Amp. Hrs. 20 Hr Rate: 300 - Length 10.28", Width 7.06", Height 13.02" - Minutes of Discharge @ 25 Amps - 692 - Minutes of Discharge @ 15 Amps - 1200 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0055340S0 | | Battery Cell Composition | Lead Acid | | Battery Type | Lead Acid | | Best Sellers Rank | #2,728,484 in Automotive ( See Top 100 in Automotive ) #2,951 in Automotive Replacement Batteries | | Brand | LIFELINE | | Brand Name | LIFELINE | | Compatible with Vehicle Type | Boat | | Customer Reviews | 4.2 out of 5 stars 12 Reviews | | Item Dimensions D x W x H | 7.06"D x 10.28"W x 13.02"H | | Item Weight | 90 pounds | | Manufacturer | Lifeline | | Manufacturer Part Number | GPL-6CT | | Number Of Cells | 1 | | Size | 10.28inchx7.06inchx13.02inch | | Terminal | Marine Terminal | | Vehicle Service Type | Boat | | Voltage | 6 volts | ## Product Details - **Battery Cell Composition:** Lead Acid - **Brand:** Lifeline - **Item Weight:** 90 Pounds - **Manufacturer:** Lifeline - **Number Of Cells:** 1 - **Product Dimensions:** 7.06"D x 10.28"W x 13.02"H - **Size:** 10.28inchx7.06inchx13.02inch - **Terminal:** Marine Terminal - **Vehicle Service Type:** Boat - **Voltage:** 6 Volts ## Images ![Lifeline GPL-6CT - 6 volt - 300AH Deep Cycle Battery - Image 1](https://m.media-amazon.com/images/I/51kiwKkf2kL.jpg) ![Lifeline GPL-6CT - 6 volt - 300AH Deep Cycle Battery - Image 2](https://m.media-amazon.com/images/I/51EcKWQZeZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ High quality *by K***Y on September 10, 2025* These are high-quality, deep-cycle, and very dependable. At 6V they can be configured as 12V, 24V, or 48V application. Price per unit varies and can be obtained for $488 each including tax and shipping. ### ⭐⭐⭐⭐⭐ motorcoach replacement batteries *by D***Y on September 12, 2021* Was the only option for replacement!!! ### ⭐⭐⭐⭐⭐ Worth the money. *by J***I on November 28, 2019* Excellent product. Installed in my DP motor home. Working great. ## Frequently Bought Together - Lifeline GPL-6CT - 6 volt - 300AH Deep Cycle Battery - 10pcs 1 AWG-3/8 Battery Lugs,Copper Wire Lugs,UL Listed Heavy Duty Battery Cable Ends,Tubular Ring Terminals,AWG Crimp Wire Ring Lugs,Battery Terminal Connectors with 3:1 Heat Shrink Tubing - WNI 8 Gauge 10 Feet Red 8 AWG Ultra Flexible Welding Battery Copper Cable Wire - Made In The USA - Car, Inverter, RV, Solar --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/92548279-lifeline-gpl-6ct-6-volt-300ah-deep-cycle-battery](https://www.desertcart.pt/products/92548279-lifeline-gpl-6ct-6-volt-300ah-deep-cycle-battery) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-05*