$289.99
Rule the water and the road with the Optima BlueTop Group 34M AGM Battery (OPT-D34M-BT)—the #1 marine dual-purpose battery engineered for extreme starting power and deep-cycle endurance in boats, RVs, trolling motors, fish finders, stereos, and off-grid setups. Powered by SpiralCell® pure lead technology, this 12V 750 CCA, 55Ah sealed AGM battery delivers 3X longer life, 15X more vibration resistance, and up to 300 deep discharge cycles—perfect for marine starting, house power, and high-drain electronics.
Featuring marine-grade stainless steel SAE terminals, this 100% spill-proof, maintenance-free battery mounts in any position, resists corrosion, and recharges 2X faster than flooded lead-acid. Ideal for bass boats, pontoons, center consoles, sailboats, motorhomes, and camper vans.
Searching for the best Group 34M marine battery or deep cycle boat battery? The Optima BlueTop D34M is the top-rated dual-purpose marine AGM, trusted by anglers, captains, and RV owners for unmatched cranking, deep cycling, and saltwater toughness.
Only at Battery Joe – your #1 online store for marine batteries, RV AGM batteries, trolling motor batteries, and waterproof power solutions. Same-Day Shipping · 30-Day Returns · 100% Authentic Optima
Fitment: Direct replacement for Group 34M, D34M — fits Mercury, Yamaha, Minn Kota, Lowrance, Garmin, and most marine/RV applications.
Add to cart now — dominate the water with the best-selling BlueTop D34M marine battery. Limited stock — power up today!
20 in stock
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| Feature | Description |
|---|---|
| Product Name | Optima Group 34M High Performance Dual Purpose Deep Cycle and Starting Sealed Boat and RV Blue Top AGM Battery |
| Model/SKU | OPT-D34M-BT (D34M) |
| Compatibility | Marine vessels, RVs, boats, trolling motors, and vehicles requiring Group 34M battery; ideal for starting engines and powering onboard electronics, accessories, or deep-cycle applications |
| Design | Spiralcell AGM construction with six spiral-wound cells; non-spillable, sealed, and mountable in any position; dual SAE automotive and threaded stainless steel marine terminals |
| Protection Level | Up to 15 times more vibration resistant than conventional batteries; fully sealed and leak-proof; operates in extreme temperatures from -40°F to 140°F |
| Key Technology | SPIRALCELL™ technology using 99.99% pure lead plates for low internal resistance, high power density, and fast recharge; over 300 deep discharge/recharge cycles |
| Additional Features | Dual-purpose: high cranking power for starting + deep-cycle capability for sustained loads; maintenance-free; resistant to corrosion; ideal for winches, audio systems, and marine electronics |
| Specifications | Voltage: 12V; Capacity: 55 Ah; Cold Cranking Amps (CCA): 750; Marine Cranking Amps (MCA): 870; Reserve Capacity (RC): 120 minutes; Dimensions: 10.00″ L x 6.88″ W x 7.88″ H (254 x 175 x 200 mm); Weight: 43.5 lbs (19.7 kg) |
| Warranty | 24-month free replacement warranty (marine/RV use); 36 months for automotive starting (non-commercial); deep cycle and high-drain audio applications may vary |
| Color/Finish | Light gray case with distinctive blue top |
BATTERY; OPTIMA; 8016-103; BLUE; 12V; 750CCA; 870CA; DUAL TERM; BCI-D34M OPTIMA 8016-103 D34M BLUE MARINE RV
| Weight | 45 lbs |
|---|---|
| Dimensions | 10.06 × 6.88 × 7.94 in |
| UPC | *721112826950* |
| Additional Description 2 | OPTIMA 8016-103 D34M BLUE MARINE RV |
| Additional Description 1 | BATTERY; OPTIMA; 8016-103; BLUE; 12V; 750CCA; 870CA; DUAL TERM; BCI-D34M |
| Amp Hours | 55.0000 |
| Category Code | NEW BATTER |
| CCA | 750.0000 |
| Chemistry | AGM Lead-Acid; Sealed; Non-Spi |
| Group Size | 34 |
| Internal ID | 434 |
| Image File | OPT-D34M-BT_434.jpg |
| Profile Code 2 | MARINE COR |
| Sub Category Code | MARINE |
| Volts | 12.0000 |
| Warranty | 18 |
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