Description
MK Battery / Deka® 8A4D | 12 V 200 Ah AGM Solar Battery (Non-Spillable)
Overview
The Deka® 8A4D is a premium 12 V valve-regulated AGM deep-cycle battery designed for solar and renewable-energy storage systems. With a rated capacity of approximately 198 Ah @ C/20 and a non-spillable, maintenance-free construction, it’s ideal for both stand-alone and hybrid installations. Manufactured by MK Battery / East Penn Manufacturing, it brings industrial-grade quality into your energy-storage setup.
Domestic sourcing matters—here’s how this product qualifies:
Proudly Made in the USA
Every MK Battery / Deka® 8A4D 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 unmatched reliability and performance.
When you choose Deka, you’re supporting American manufacturing and dependable power you can trust.
Key Features
- Valve-regulated AGM (absorbed glass mat) design — maintenance-free, no watering
- Non-spillable construction supports indoor, enclosed, stackable, or mobile installations
- High capacity ~198 Ah (C/20) for demanding solar storage applications
- Tough polypropylene case and advanced lead-calcium alloy plates for long cycle life
- Safe for transport and installation without risk of leakage or orientation restrictions
Applications
- Off-grid solar battery banks and hybrid renewable systems
- Telecom backup power, UPS, SCADA instrumentation
- Marine, RV, and mobility power storage systems
- Energy-storage modules in residential and light-commercial installations
Technical Specifications
| Model | 8A4D (AGM Non-Spillable) |
|---|---|
| Nominal Voltage | 12 V |
| Capacity | ≈ 210 Ah @ C/100 • ≈ 198 Ah @ C/20 • ≈ 164 Ah @ C/5 |
| Dimensions (L × W × H) | 21.15″ × 8.41″ × 9.83″ (537 × 214 × 250 mm) |
| Weight | ≈ 133.5 lb (61 kg) |
| Case Material | Polypropylene |
| Internal Material | Lead-calcium alloy plates; AGM separators |
| Charge Voltage @ 77 °F (25 °C) | Cycle 13.8-14.6 V • Float 13.4-13.6 V |
| Operating Temperature Range | −40 °F (−40 °C) to 140 °F (60 °C) |
| Rated Non-Spillable | ICAO / IATA / DOT certified |
| Country of Manufacture | USA (East Penn Manufacturing) |
Specifications sourced from MK Battery spec sheet for 8A4D (Rev. 2025) at MKBattery.com.
Design & Performance
The 8A4D uses advanced AGM technology to immobilize electrolyte and eliminate maintenance. Its high-density plates and rugged case ensure durability in deep-cycle solar applications. Because it’s non-spillable, it works in enclosed racks, mobile installations, or anywhere orientation and safety are critical.
