Description
MK Battery / Deka® 8A22NF | 12 V 55 Ah AGM Deep-Cycle Solar Battery (Non-Spillable)
Overview
The Deka® 8A22NF is a Group 22NF, valve-regulated AGM (absorbed glass mat) deep-cycle battery engineered for solar, mobility, marine/RV, and standby power applications. With a rated capacity of 55 Ah @ C/20 (and 63 Ah @ C/100), its sealed, maintenance-free design delivers dependable energy where non-spillable, indoor-safe operation is essential.
Domestic sourcing matters—here’s how this product qualifies:
Proudly Made in the USA
Every MK Battery / Deka® 8A22NF is built by East Penn Manufacturing Co. in Lyon Station, Pennsylvania—right here in the USA.
These batteries are crafted under one roof with decades of American engineering expertise, using a blend of U.S. and globally sourced materials to deliver consistent reliability and quality.
When you choose Deka®, you’re supporting American manufacturing and dependable power you can trust.
Key Features
- Sealed, maintenance-free AGM design — non-spillable, orientation-flexible mounting.
- 55 Ah @ C/20 deep-cycle performance; 63 Ah @ C/100 for long-duration loads.
- Lead-calcium plate alloy, forged terminals & bushings for durability and low self-discharge.
- Rugged polypropylene case; vibration-resistant, indoor-safe operation.
- Made in the USA by East Penn Manufacturing.
Applications
- Off-grid / hybrid solar battery banks and UPS standby power
- Mobility equipment, marine & RV house banks
- Telecom, SCADA, and remote monitoring systems
- General deep-cycle use where sealed reliability is required
Technical Specifications
| Model | 8A22NF (AGM, Group 22NF) |
|---|---|
| Nominal Voltage | 12 V |
| Capacity | 63 Ah @ C/100 · 55 Ah @ C/20 · 46.5 Ah @ C/5 |
| Dimensions (L × W × H) | 9.72″ × 5.47″ × 9.24″ (247 × 139 × 235 mm) |
| Weight | ≈ 37 lb (17 kg) |
| Terminal Type | G (T881) / dual post-stud |
| Plate Alloy | Lead-Calcium |
| Container / Cover | Polypropylene |
| Operating Temperature | –40 °F (–40 °C) to 140 °F (60 °C) |
| Charge Voltage @ 77 °F (25 °C) | Cycle: 13.8–14.6 V · Float: 13.4–13.6 V |
| Vent | Self-sealing (rated non-spillable by ICAO/IATA/DOT) |
| Country of Manufacture | USA (East Penn Manufacturing) |
Values are typical at 77 °F (25 °C). Always follow MK Battery’s charging parameters for VRLA AGM.
Design & Performance
Absorbed-glass-mat separators immobilize the electrolyte, enabling spill-proof, vibration-resistant operation and excellent cycling durability. The Group 22NF footprint delivers a strong energy-to-size ratio for compact solar, mobility, and standby installations, while tight charge-window control supports long service life.
