Shenzhen BAK Technology Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 1000PCS/Month |
| Delivery Time | 10~12days |
| Continuous Discharge Current | 8A |
| Overcharge Detection | 4.230V±0.050V (Adjustable) |
| Series Supported | 3S |
| Balancing Type | Active/Passive (Optional) |
| Overdischarge Detection | 2.800V±0.0250V (Adjustable) |
| Dimensions | 64.64 × 38.35 × 2.83 mm |
| Brand Name | BAKTH |
| Model Number | BAKTH-0030100039-01 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1000PCS/Month |
| Delivery Time | 10~12days | Continuous Discharge Current | 8A |
| Overcharge Detection | 4.230V±0.050V (Adjustable) | Series Supported | 3S |
| Balancing Type | Active/Passive (Optional) | Overdischarge Detection | 2.800V±0.0250V (Adjustable) |
| Dimensions | 64.64 × 38.35 × 2.83 mm | Brand Name | BAKTH |
| Model Number | BAKTH-0030100039-01 | Place of Origin | China |
| High Light | 3S lithium battery protection board ，SMBUS-compatible BMS PCB ，8A smart battery protector | ||
The 2S (2-series) 20A Smart Battery Management System (BMS) represents a core component in managing and protecting low-voltage lithium-ion battery packs. With the proliferation of portable electronics, backup power systems, and small-scale electric mobility, the demand for reliable, compact, and intelligent protection boards has surged. This case study analyzes the functionality, adaptability, and implementation scenarios of a typical 2S 20A BMS, demonstrating its role in enhancing system safety, extending battery life, and enabling smart energy management across diverse applications.
| Parameter | Value |
|---|---|
| Over Current Discharge | 9.0A±0.5A (Adjustable) |
| Over Current Charge | 8.0A±0.5A (Adjustable) |
| Discharging Temperature | -20~60℃ (Adjustable) |
| Charge Temperature | 0~45℃ (Adjustable) |
Key Features:
Overcharge Protection: Cuts off the charging current when any cell voltage exceeds a safe upper limit (e.g., 4.25V for ternary lithium), preventing electrolyte decomposition and thermal runaway.
Over-discharge Protection: Disconnects the load when cell voltage falls below a minimum threshold (e.g., 2.5V-3.0V), protecting against capacity loss and cell reversal.
Overcurrent & Short-Circuit Protection: Detects and interrupts excessive discharge currents or short circuits, typically using high-speed MOSFETs rated for 20A continuous current, safeguarding the pack and connected devices from damage.
Temperature Monitoring: Integrates a Negative Temperature Coefficient (NTC) thermistor to monitor battery temperature. It can trigger protection or send alerts if temperatures exceed safe operating windows.
Cell Balancing: Many smart BMS units incorporate passive balancing, where a small resistor bleeds off excess charge from the higher-voltage cell in the pack during charging. This ensures both cells reach full charge simultaneously, improving capacity utilization and longevity. Advanced models may feature active balancing with greater efficiency.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2002
Total Annual:
15000000-20000000
Employee Number:
100~199
Ecer Certification：
Verified Supplier
Shenzhen BAK Technology Co., Ltd. founded in 2002, with more than 22 years experience in design and production of battery packs and PCB/BMS. BAKTH has its own R&D team, advance production & testing facilities. A fully automatic SMT line was introduced in 2021, further enhanced BAKTH producti... Shenzhen BAK Technology Co., Ltd. founded in 2002, with more than 22 years experience in design and production of battery packs and PCB/BMS. BAKTH has its own R&D team, advance production & testing facilities. A fully automatic SMT line was introduced in 2021, further enhanced BAKTH producti...
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