Shenzhen Ryder Electronics Co., Ltd. is one of the leading manufacturers and suppliers of 4s bms for li ion battery 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.
Product Overview
Ensure the safety and longevity of your 4-cell lithium-ion or lithium-polymer battery packs with our high-performance 4S Battery Management System (BMS). Designed for 14.4V applications, this BMS is ideal for electric tools, power tools, and other high-demand devices. With advanced protection features, this BMS safeguards your battery from overcharging, over-discharging, over-current, and short circuits, ensuring optimal performance and safety.
Key Features
Compatibility:
Designed for 4S Li-ion/Li-polymer battery packs (14.4V).
Comprehensive Protection:
Includes overcharge, over-discharge, over-current, and short-circuit protection.
High Precision:
Internally trimmed charge and discharge voltage limits for accurate monitoring.
Low Power Consumption:
Features a low-current standby mode when cells are discharged.
Compact Design:
Dimensions of 50 x 16 x 3.5 mm, making it easy to integrate into various battery packs.
High-Quality Construction:
100% tested before shipment to ensure reliability and durability.
Technical Specifications
|
Parameter |
Details |
|
Overcharge Protection |
Detection Voltage: 4.25±0.025V, Release Voltage: 4.15±0.05V |
|
Over-Discharge Protection |
Detection Voltage: 2.5±0.08V, Release Voltage: 3.0±0.1V |
|
Over-Current Protection |
Detection Current: 17±4A, Release Condition: Cut Load, Delay Time: 5-15ms |
|
Short-Circuit Protection |
Detection Condition: Exterior Short Circuit, Release Condition: Cut Circuit |
|
Interior Resistance |
Main Loop Electrify Resistance: RSS≤60mΩ |
|
Current Consumption |
Normal Operation: 50μA Max |
|
Dimensions |
50 x 16 x 3.5 mm |
Connection Guide
B+: Connect to the fourth battery's positive terminal.
B3+: Connect to the third battery's positive terminal.
B2+: Connect to the second battery's positive terminal.
B1+: Connect to the first battery's positive terminal.
B-: Connect to the first battery's negative terminal.
P+: Connect to the battery's output or the charger's positive terminal.
P-: Connect to the battery's output or the charger's negative terminal.
Usage Instructions
- Proper Connection: Follow the connection instructions carefully. Start from B- and connect lines in order from low to high positions to avoid irreversible damage.
- Avoid Short Circuits: Ensure no copper or tin bits cling to the guard shield during installation.
- Secure Installation: Fix the protection board to the battery group according to specifications. Avoid placing leading lines on the back of the board.
- Thermal Management: Use power supply lines with the proper diameter to prevent overheating and voltage drops during high-current discharge.
- Safety Precautions: Ensure proper insulation, heat dissipation, and tightness when installing the guard shield in the battery box to prevent internal short circuits.
- Storage: Keep fully charged battery packs out of reach of children.
- Troubleshooting: If any abnormal conditions occur during use, stop using the product immediately and consult a professional.
Why Choose RYDBATT?
15+ Years of Expertise: With over 15 years of experience in battery pack manufacturing, RYDBATT is a trusted name in the industry.
01
Custom Solutions: We develop battery packs tailored to your specific requirements and product orientation.
02
Advanced Production: Our automated assembly line processes 7,000-10,000 cells daily, ensuring fast and reliable delivery.
03
Rigorous Testing: We offer 200 test points for batteries within 60V 10A and 32 test points for batteries within 100V 20A.
04
Quality Assurance: Certified with ISO9001 and ISO14001, we maintain the highest standards in production and environmental management.
05
Delivery Timeline:
Material Preparation: 7-15 days (or from inventory).
01
Production & Assembly: 3-10 days.
02
Testing & Packaging: 2-10 days.
03
Total Delivery Time: 30-45 days (faster delivery available upon negotiation).
04
OEM/ODM Services
Customize your battery packs with your brand logo, packaging, or design specifications. RYDBATT offers comprehensive OEM and ODM services to meet your unique needs.
About RYDBATT
Established in 2005, RYDBATT has grown into a modern enterprise specializing in battery pack manufacturing. With state-of-the-art facilities, including injection molding, PCB design, SMT, and automated assembly lines, we deliver high-quality products to customers worldwide. Our commitment to innovation and quality has earned us certifications such as ISO9001 and ISO14001.
Contact Us
For OEM/ODM inquiries or to place an order, contact our sales team today. Let RYDBATT power your next project with reliable, high-performance battery solutions.
Packaging Options
Standard export packing.
Carton boxes, wooden boxes, or wooden pallets available.
Trust RYDBATT for Your Battery Management Needs – Powering Innovation, Ensuring Safety.
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