Original price was: $289.99.$246.49Current price is: $246.49.
The Optima BlueTop D31M Dual Purpose AGM Marine Battery (OPT-D31M-BT) is a premium high-performance sealed AGM battery engineered for demanding marine and RV applications. Featuring Optima’s patented SPIRALCELL TECHNOLOGY with 99.99% pure lead, this Group 31M battery delivers exceptional starting power combined with deep cycle capability, making it ideal for boats with trolling motors, extensive electronics, large outboards, inboards, or RVs requiring reliable dual-purpose performance.
This maintenance-free, spill-proof battery offers superior vibration resistance—more than 15 times that of conventional batteries—allowing secure mounting in virtually any position, even upside down. It withstands the harshest marine environments, including extreme heat, cold, and rough waters, while providing up to 3x more recharges and longer service life compared to traditional flooded lead-acid options.
Key Specifications:
Perfect for marine starting and deep cycling needs, including powering accessories, electronics, winches, and trolling motors without sacrificing cranking performance. The Optima BlueTop D31M ensures fast, reliable starts and extended runtime, even under heavy loads.
Upgrade to the trusted Optima BlueTop series for unmatched durability, power, and peace of mind on the water or road. Search no further for a top-tier AGM marine battery—choose the Optima BlueTop D31M for premium quality and proven performance.
1 in stock
Local Pickup & Delivery Orders are only available within a 25-mile radius of your local Battery Joe location.
Ship-to-Home:
Please note that ship-to-home options are unavailable for automotive, commercial, golf cart, industrial, and marine/RV batteries to ensure safe and compliant handling. However, you can still enjoy convenient local delivery or in-store pickup for online orders in these essential battery categories. In addition, we do not ship to Alaska or Hawaii at this time.
Battery Joe’s ship-to-home policy provides convenient delivery options to customers throughout all 48 contiguous states in the Continental United States.
Local Pickup:
Orders placed during business hours are typically ready within one hour and available for pickup up to 30-minutes before closing.
If your order is placed within the last hour of business, please call the store after placing your order to confirm it can be prepared in time.
Orders placed after hours will be ready for pickup the next business day.
Local Delivery:
Delivery times may vary based on order volume and location.
Orders placed within one hour of closing will be delivered the next business day.
| Attribute | Details |
|---|---|
| Brand | Optima Batteries |
| Model | D31M (BlueTop Series) |
| Part Number / SKU | OPT-D31M-BT (also referenced as 8052-161 or 9052-161) |
| Battery Type | AGM (Absorbed Glass Mat), Sealed Lead Acid |
| Purpose | Dual Purpose (Engine Starting + Deep Cycle) |
| Nominal Voltage | 12 Volts |
| Amp Hour Capacity (C20 / 20hr Rate) | 75 Ah |
| Cold Cranking Amps (CCA @ 0°F) | 900 Amps |
| Marine Cranking Amps (MCA / CA @ 32°F) | 1125 Amps |
| Reserve Capacity | 155 minutes @ 25 Amp discharge |
| BCI Group Size | 31 |
| Dimensions (L x W x H) | 12.81″ x 6.56″ x 9.38″ (325 mm x 165 mm x 238 mm) |
| Weight | 59.8 lbs (27.2 kg) |
| Terminal Type | Dual: SAE Top Posts + 5/16″-18 Stainless Steel Threaded Studs |
| Technology | SPIRALCELL® Technology (Wound Cell Design) |
| Key Features | Maintenance-free, Spill-proof, Vibration-resistant (up to 15x more than conventional batteries), Mountable in any position, Up to 3x more recharges than standard marine batteries |
| Case Material | Polypropylene (Light Gray Case with OPTIMA Blue Cover) |
| Ideal Applications | Marine (boats with trolling motors/large accessory loads), RV starting/deep cycle needs |
BATTERY; OPTIMA; 8052-161; BLUE; 12V; 900CCA; 1125CA; DUAL TERM; BCI-D31M OPTIMA 8052-161 D31M BLUE MARINE RV
| Weight | 59.8 lbs |
|---|---|
| Dimensions | 12.81 × 6.56 × 9.38 in |
| UPC | *721112826943* |
| Additional Description 2 | OPTIMA 8052-161 D31M BLUE MARINE RV |
| Additional Description 1 | BATTERY; OPTIMA; 8052-161; BLUE; 12V; 900CCA; 1125CA; DUAL TERM; BCI-D31M |
| Amp Hours | 75.0000 |
| Category Code | NEW BATTER |
| CCA | 900.0000 |
| Chemistry | AGM Lead-Acid; Sealed; Non-Spi |
| Group Size | 31 |
| Internal ID | 442 |
| Profile Code 2 | COMMERCIAL |
| Sub Category Code | MARINE |
| Volts | 12.0000 |
| Image File | OPT-D31M-BT_442.jpg |
| Warranty | 18 |
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