Shenzhen Headquarters & Base
Building 3, Huancheng Industrial Park, Dalang North Road, Dalang Street, Longhua District, Shenzhen
Ni-MH Batteries
24V 5500mAh-C×20 Coal Mine Emergency Power Supply High-Temperature NiMH Battery
- Product Model:328
- Nominal Voltage:24V
- Nominal Capacity:5500mAh
Battery Highlights
- This wide-temperature NiMH battery is composed of 20S1P configuration
24V 5500mAh-C×20 Coal Mine Emergency Power Supply High-Temperature NiMH Battery Nominal Voltage: 24V Nominal Capacity: 5500mAh Product Dimensions: Length 48MM Width 25MM (Max, MM) Product Features This wide-temperature NiMH battery is composed of a 20S1P configuration, high-temperature NiMH battery, long cycle life, low internal resistance, high current, compact size, high energy. Environmentally friendly, free of harmful substances such as mercury, chromium, and lead. Passed authoritative testing and certifications, with CE, CD, UN38.3, KC and other certification qualifications. Application Fields Coal mine emergency power supply
Specifications
Technical Specifications
| Cell Model | EPT NiMH Cell-5500mAh-20S1P |
|---|---|
| Fast Charge | 1650mA×260min(-ΔV=5mV/cell) |
| Nominal Voltage | 24V |
| Standard Charge | 550 mA×16hrs |
| Nominal Capacity | 5500mAh |
| Product Dimensions | Length 48MM Width 25MM (Max, MM) |
| Charge Cut-off Voltage | 30V |
| Discharge Cut-off Voltage | 20V |
Unique Advantages
Core Features
- NiMH battery cell
Use Cases
Applications
- Coal mine emergency power supply
Our Promise
Scale, Quality and Global Service
Four self-owned production bases and decades of battery expertise — delivering outstanding capacity, compliance assurance and all-round support for your products.
Meizhou Production Base
No. 3 Liangneng Road, High-Tech Industrial Park, Shejiang Town, Meixian District, Meizhou
Jiangsu Production Base
No. 166 Cuidun Road, High-Tech Zone, Jianhu County, Yancheng, Jiangsu
Vietnam Production Base
Road No. 1, Luong Son Industrial Park, Luong Son Commune, Phu Tho Province, Vietnam
Strength
Over 23 years of deep expertise in the battery industry, with revenue surpassing RMB 800 million in 2025, industry-leading cell technology and strong engineering R&D capabilities.
Quality
Every product passes 36 inspection procedures with strict process control — ensuring consistent quality for every unit that leaves our factories.
Certification
A CNAS-accredited testing laboratory, rigorous internal standards, and a compliance framework backed by major international certifications.
Capacity
Self-owned production bases in Shenzhen, Meizhou, Jiangsu and Vietnam — daily output of 800,000 Ni-MH cells, 600,000 Ah of lithium cells and 300,000 battery packs.
Global Service
Global product liability insurance coverage, serving 1,000+ clients with localized support across North America, Europe, Japan, Korea and China.
Core Product Lines
Pouch Li-Polymer, cylindrical lithium, Ni-MH and Ni-Zn cells for consumer electronics, energy storage and industrial applications.
Battery Packs
Dedicated PACK production lines offering custom battery assembly and integration services to meet the battery system needs of all kinds of end products.
Contact Us
Contact Our Team
Reach us by phone, email or the form below — we typically reply within one business day.
- Service Hotline
- 13902902363
- 24/7 Custom Inquiry Line
- 0755-21057907
Headquarters
Building 3, Huancheng Industrial Park, Dalang North Road, Dalang Street, Longhua District, Shenzhen
Meizhou Base
No. 3 Liangneng Road, High-Tech Industrial Park, Shejiang Town, Meixian District, Meizhou
Jiangsu Base
No. 166 Cuidun Road, High-Tech Zone, Jianhu County, Yancheng, Jiangsu
Vietnam Base
Road No. 1, Luong Son Industrial Park, Luong Son Commune, Phu Tho Province, Vietnam
