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Warranty: 30 Month Free Replacement
What Our Experts Are Saying
Get long-lasting 100Ah deep cycle power with 2x more cycle life—this spill-proof AGM battery keeps your boat or RV running longer with less maintenance.
About This Item
High-capacity 12V 100Ah AGM deep cycle battery delivers long-lasting, reliable power for marine and RV applications, supporting trolling motors, electronics, and onboard systems.
Provides up to 2x more cycle life than traditional flooded marine batteries, helping extend battery lifespan and reduce replacement frequency in demanding conditions.
Designed as a direct replacement for Group 27M batteries, making installation simple for boats, RVs, and deep cycle setups.
Spill-proof AGM construction allows flexible installation positions (except upside down) while delivering safe, maintenance-free operation.
Built with up to 20x more vibration resistance than flooded batteries, ensuring durability and consistent performance in rough water and road environments.
Backed by a 30-month free replacement limited warranty for dependable Duracell Ultra performance and long-lasting peace of mind.
Product Specifications
| Item Number | SLI27MAGMDC |
|---|---|
| Brand | Duracell Ultra |
| Format | BCI Group 27M |
| Cold Cranking Amps | 620 |
| Terminal Type | DT, SAE/M8 Stud, SAE/M8 Threaded Post, WNT |
| Capacity | 100Ah |
| Voltage | 12 |
| Lead Acid Type | Starting |
| Lead Acid Type | Dual Purpose (Starting/Cycling) |
| Lead Acid Type | Deep Cycle |
| Reserve Capacity Minutes | 190 |
| Product Sub Category | AGM |
| Positive Terminal Placement | Left |
| Product Category | Marine/RV |
| Maintenance Free | Yes |
| Chemistry | Lead Acid |
| Battery Type | Premium |
| Lead Acid Design | AGM |
| Usage | Sump Pump |
| Usage | Sump Pump |
| Usage | RV |
| Marine Cranking Amps | 900 |
| Warranty | 30 Month Free Replacement |
| Weight | 66.14 lbs |
| Length | 12.1 in |
| Width | 6.63 in |
| Height | 9.23 in |