LTW 20S 120A Intelligent Lithium Battery Protection Board with Bluetooth - China Suppliers & Factory
| 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
Q
What type of battery chemistry does this BMS support?
This BMS is designed to support LiFePO4 (Lithium Iron Phosphate) battery chemistry, which is widely recognized for its excellent thermal stability, long cycle life, and enhanced safety compared to other lithium-ion chemistries.
Q
What does "20S" mean in the Battery Links specification?
"20S" refers to a 20-cell series configuration. This means 20 individual battery cells are connected in series, which multiplies the voltage of a single cell by 20 to achieve the required pack voltage for the application.
Q
What is the maximum input charging current this BMS can handle?
The typical input charging current for this BMS is 80A. It is important to ensure your charger does not exceed this value to maintain safe and efficient charging operation and to protect the battery cells from damage.
Q
What is the correct input charging voltage for a LiFePO4 configuration?
For a LiFePO4 battery configuration, the input charging voltage should be calculated as 3.65V multiplied by the string count (number of cells in series). For a 20S pack, this would be 3.65V × 20 = 73V as the maximum charging voltage per cell limit.
Q
What is the output discharging voltage range supported by this BMS?
The BMS supports an output discharging voltage range from a minimum of 46V to a maximum of 74V, with a typical operating voltage of 64V. This range accommodates the natural voltage fluctuation of a LiFePO4 20S battery pack during discharge cycles.
Q
What is the continuous output discharging current limit?
The continuous output discharging current is rated at ≤120A. Exceeding this limit may trigger the BMS protection mechanism or cause permanent damage to the unit. Always ensure your load requirements stay within this threshold for safe and reliable long-term operation.