High-Performance Lithium-Ion Battery Pac

High-Performance Lithium-Ion Battery Pac
Details:
RYDBATT® Li-21700-7S4P-25.9V 20Ah Battery Pack​ is a robust lithium-ion energy storage solution designed for demanding industrial applications. Engineered by Shenzhen Ryder Electronics Co., Ltd., a global leader in lithium battery technology, this battery combines advanced cell chemistry, intelligent protection, and durable construction to deliver reliable performance across extreme temperatures and usage scenarios.
Description
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Shenzhen Ryder Electronics Co., Ltd. is one of the leading manufacturers and suppliers of high-performance lithium-ion battery pac in China. Welcome to buy CE approved batteries in stock here and get free sample from our factory. All customized products are with high quality and low price.

 

Key Features

 

 

High Capacity: 20Ah nominal capacity with ≤50mΩ internal resistance

Smart Protection: Integrated PCM (Protection Circuit Module) with CAN protocol communication

Safety-Certified: Compliant with UN38.3, UL, and IEC safety standards

Longevity: ≥300 cycles at 25°C (80% capacity retention)

Wide Operating Range: -20°C to 60°C discharge / 5°C to 45°C charge

 

​Technical Specifications

 

 

Category

Specifications

Battery Type

7S4P Li-NMC Cylindrical Cells (INR21700-50GB, Samsung)

Voltage

Nominal 25.9V

Capacity

20Ah (min 18.62Ah)

Dimensions

227mm × 135.5mm × 90mm (H×W×L)

Weight

≈2.75kg ±0.5kg

Thermal Management

Built-in PCM with temperature sensors (BMS)

Connectivity

CAN 2.0B Interface (250 kbps)

Certifications

UN38.3, UL1642, CE, RoHS

 

Advanced Protection Features

 

 

Multi-Layer Safety:

Overcharge/over-discharge protection (hardware + software)

Short-circuit protection (<15μs response)

Overcurrent protection (up to 80.3A hardware cutoff)

Temperature monitoring (charge/discharge limits: -24°C to 74°C)

 

Balancing System: Active cell balancing during charge/idle modes (±30mV threshold)

 

Long-Term Reliability:

1-year warranty (300-cycle minimum)

IP67-rated enclosure for dust/water resistance

 

Application Areas

 

 

Industrial Mobility

Electric forklifts, AGVs, and material handling equipment

Marine vessels and off-road vehicles

Energy Storage

Renewable energy systems (solar/wind backup)

UPS and emergency power supplies

Heavy-Duty Tools

High-torque electric power tools

 

​Why Choose Ryder?​

 

20+ Years of Expertise

Specialized in lithium battery systems since 2005

ISO 9001 & IATF 16949 certified production facilities

Customization Capabilities

Tailored solutions for voltage, capacity, and connectivity

Rapid prototyping and compliance testing

Global Reach

Offices in Shenzhen (HQ) and Huizhou (manufacturing hub)

Export experience to Europe, Americas, and Asia-Pacific

 

Get in Touch

 

 

Request a Quote or Technical Consultation:

Email: manager@rvderbatterv.com
Tel: +86-755-32903801

Address:

Shenzhen HQ: Room 1008-1009, OCT Innovation Mansion, Longhua District

Huizhou Factory: No.16 Sanhe Avenue, China-Korea Industrial Park, Huizhou

 

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