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Deka 8G40-EI-DEKA Battery Specifications
| Model # | 8G40-EI-DEKA |
| Battery Type | Valve-Regulated GEL (VRLA) |
| Nominal Voltage | 12V |
| Capacity at C/100 | 48Ah |
| Capacity at C/20 | 40Ah |
| Weight | 31.5 lbs. (14 kg) |
| Plate Alloy | Lead Calcium |
| Terminal Type | Type C (Insert w/ ¼” – 20 round hole) |
| Case Material | Polypropylene (ABS Cover) |
| Self-Discharge Rate | < 2% per month |
| Operating Temp Range | –76°F to 140°F (–60°C to 60°C) |
| Dimensions (L × W × H) | 7.76 × 6.62 × 6.88 in (197 × 168 × 175 mm) |
| Certifications | IEC-61427, UL-compliant, Air Transport Safe |
These 12VDC MAPPS® systems are designed and built to meet or surpass the highest safety standards in the industry. These systems are perfect for small-scale applications, offering durability, power, and reliability in a compact design.
Deka 8G40-EI-DEKA 12V Deep Cycle Gel Battery
SKU DEKA-GEL-8G40-12V-BATTERY
Deka 8G40-EI-DEKA Gel Battery
The Deka 8G40-EI-DEKA is a 12V valve-regulated solar GEL battery designed for deep-cycle performance and long-lasting reliability in renewable energy applications. Featuring a 48Ah capacity at C/100 and maintenance-free design, this battery is a trusted choice for off-grid, backup, or hybrid solar systems where safety and efficiency are essential. The sealed GEL electrolyte prevents spills and enhances plate protection, ensuring better deep discharge resilience and faster recharge times compared to flooded alternatives.
Deka 8G40-EI-DEKA Gel Battery Features
- Deep-Cycle GEL Performance: Designed for demanding solar and backup applications with sealed, non-spillable GEL electrolyte.
- Maintenance-Free Operation: No watering or equalization needed thanks to fully sealed valve-regulated construction.
- Low Self-Discharge: Holds charge efficiently with a monthly self-discharge rate of under 2% — ideal for long-term storage.
- Built in the USA: Manufactured in an environmentally responsible facility with quality-controlled IPF® plate formation technology.
- Tested to IEC Standards: Meets IEC-61427 for renewable energy storage with rugged casing and wide operating temp range.
Engineered in the USA for Proven Reliability
Built in the USA with MK Battery's Individual Plate Formation (IPF®) technology, the 8G40-EI-DEKA ensures consistent cell performance with reliable voltage matching. Its low self-discharge rate (less than 2% per month), corrosion-resistant polypropylene case, and forged terminal posts make it ideal for demanding installations. This GEL monobloc battery stands as a dependable power solution for solar, marine, telecom, and mobility applications.
Full Selection of Deka Gel and AGM Batteries
Deka 8G40-EI-DEKA GEL Battery Review
Solar Electric Supply is proud to offer the MK 8G40-EI-DEKA — a rugged, USA-made 12V GEL battery engineered for deep-cycle solar storage. With a compact Group 40 form factor, the 8G40-EI-DEKA fits easily into tight enclosures and portable systems while delivering 48Ah of long-lasting capacity at C/100. Its spillproof, maintenance-free design and low self-discharge rate make it ideal for renewable energy projects, RVs, and remote backup applications. Trusted for durability and quality, SES recommends this battery as a top-tier solution in the sealed lead-acid category.
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