Find Your Store For the Best Experience
My Store
Warranty: 24 Month Free Replacement
What Our Experts Are Saying
Count on the Optima Blue Top 31M AGM battery for powerful starts and deep cycling performance—engineered for marine and RV use with long life and rugged reliability.
About This Item
Replaces Group 31M batteries; 900CCA dual-purpose Blue Top AGM for marine deep cycling and engine starting.
Equivalent to Optima 9052-161; Delivers 900 cold cranking amps and 75Ah capacity for reliable starts and sustained onboard power.
SPIRALCELL TECHNOLOGY with 99.99% pure lead ensures efficient, clean energy and long-lasting performance.
Built for boats, RVs, and trolling motors requiring deep cycling and high accessory loads.
Provides 3x longer life and 15x greater vibration resistance than standard flooded marine batteries.
Protected by a 24-month free replacement limited warranty for dependable, marine-grade power.
Product Specifications
| Item Number | OPT8052-161 |
|---|---|
| Brand | Optima |
| Format | BCI Group 31M |
| Cold Cranking Amps | 900 |
| Capacity | 75Ah |
| Voltage | 12 |
| Lead Acid Type | Deep Cycle |
| Reserve Capacity Minutes | 155 |
| National Stock Number | 6140-01-502-4405 |
| Product Sub Category | Premium AGM |
| Positive Terminal Placement | Left |
| Product Category | Marine/RV |
| Chemistry | Lead Acid |
| Battery Type | Standard |
| Lead Acid Design | AGM |
| Usage | True |
| Usage | RV |
| Marine Cranking Amps | 1125 |
| Color | Blue Top |
| Warranty | 24 Month Free Replacement |
| Weight | 60.99 lbs |
| Length | 12.1875 in |
| Width | 6.5625 in |
| Height | 9.375 in |