Intelligent Heating Lithium Battery Protection Board 20S 120A - China Factory & Suppliers with Bluetooth Configuration
| Details | Min. | Typ. | Max | Error | Unit |
| 🔋 Battery | |||||
| Product Dimensions | 168 × 83 mm | ||||
| Battery Type | LiFePO4 | ||||
| Battery Links | 20S | ||||
| ⚡ Absolute Maximum Rating | |||||
| Input Charging Voltage | Triple: 4.2V × String count；Lithium iron phosphate: 3.65V × String count | V | |||
| Input Charging Current | 80 | A | |||
| Output Discharging Voltage | 46 | 64 | 74 | V | |
| Output Discharging Current | 120 | A | |||
| Continuous Output Discharging Current | ≤120 | A | |||
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Frequently Asked Questions
Q1: What type of battery chemistry is used in this BMS?
This BMS is designed for LiFePO4 (Lithium Iron Phosphate) battery chemistry, which is known for its superior thermal stability, long cycle life, and enhanced safety compared to other lithium-ion chemistries.
Q2: What does "20S" battery link configuration mean?
20S means 20 battery cells are connected in series. This configuration determines the total pack voltage — for LiFePO4, the nominal voltage per cell is approximately 3.2V, resulting in a pack voltage around 64V (nominal).
Q3: What is the maximum input charging current this BMS supports?
The typical input charging current is 80A. It is important not to exceed this value during charging to ensure safe and reliable operation of the battery management system.
Q4: What is the continuous output discharging current rating?
The continuous output discharging current is rated at ≤120A. This means the BMS can sustain up to 120A of discharge current continuously without triggering protection mechanisms under normal operating conditions.
Q5: What is the output discharging voltage range?
The output discharging voltage ranges from a minimum of 46V to a maximum of 74V, with a typical operating voltage of 64V. This range corresponds to the full discharge-to-full charge voltage window of the 20S LiFePO4 pack.
Q6: What is the physical size of this battery module?
The product dimensions are 168 × 83 mm, making it a compact form factor suitable for integration into various energy storage systems, electric vehicles, and portable power applications.