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| Parameter | Value / Range |
|---|---|
| Mode | 4S300A-482 |
| PCM Size | L175mm * W116.5mm * T13.5mm |
| Battery Series | 4S Available |
| Working Current | 300A Available |
| Usage (Cell Type) | Li-ion battery packs (14.8V) / LiFePO4 battery packs (12.8V) |
| Application | Ebike, Solar products, etc. |
| Sample | Available |
The 4S300A-482 battery protection solution for LiFePo4 battery packs with 4 cells in series supports robust load conditions up to 300A continuous current.
| No. | Test Item | Criterion / Target Value |
|---|---|---|
| 1 | Charging Voltage / Balance Voltage (Single Cell) | DC: 14.4V CC/CV | Balance: 3.60±0.025V |
| 2 | Current & Consumption | Balance Current: 36±5mA | Idle Current Consumption: ≤50uA | Max Continuous Charging/Discharging: 200A |
| 3 | Overcharge Protection (Single Cell) | Detection: 3.85V±0.025V | Delay: 800-1300mS | Recovery: 3.65±0.05V |
| 4 | Overdischarge Protection (Single Cell) | Detection: 2.30V±0.0625V | Delay: 500mS-1300mS | Recovery: 2.5±0.075V |
| 5 | Overcurrent Protection | Detect Voltage: 100±25mv | Current Threshold: 600±50A | Delay: 3S±1S (Adjustable) | Recovery: Cut Load |
| 6 | Short Circuit Protection | Exterior Short Circuit Detection | Delay: 500-1500uS | Recovery: Cut Load |
| 7 | Internal Resistance | MOSFET Protection Line: ≤20mΩ |
| 8 | Temperature Ranges | Operating Temperature: -40 to +85 ºC | Storage Temperature: -40 to +125 ºC |
Founded in 2013, our company is a professional designer and manufacturer of battery protection management systems. We provide high-quality Battery PCM & BMS for Lithium-ion, LiFePo4, and LTO battery packs, backed by comprehensive OEM & ODM services.
We have engineered more than 900 types of hardware and software BMS solutions including HDQ, I2C, SMBUS, RS485, RS232, and Bluetooth. Our range covers 1S-35S battery assemblies in series, with working currents up to 350A. These solutions are widely applied in light, power tools, electric bicycles, medical equipment, and electric vehicles (EV).
Committed to strict production and environmental standards, we operate under ISO 9001 certification. Our high-tech enterprise relies on advanced SMT equipment and precise testing facilities to offer clients highly reliable products with optimized performance.
Please inspect the physical body of the battery or its documentation. If the nominal voltage is 3.2V, the chemistry is LiFePO4. If the nominal voltage indicates 3.6V or 3.7V, it is a Li-ion or Lithium-polymer battery.
We offer a wide variety of power solutions including Battery Pack BMS, LiFePO4 & Lithium Ion PCM, Protection Circuit Boards (PCB), Printed Circuit Boards (PCB Assembly), and complete LiFePO4/Lithium-ion Battery Packs.
Quality is maintained through a rigorous control process. We always produce a working sample for testing and confirmation before beginning mass production, followed by a 100% final e-testing inspection prior to dispatch.
We integrate highly advanced automated SMT production lines with a scientific quality management system. This ensures our products deliver superior consistency, durability, and robust environmental performance.
We support FOB and EXW delivery terms. Payments are accepted in USD and CNY via T/T, PayPal, Western Union, or Cash. Our support staff is fully fluent in English and Chinese.
Simply provide your basic pack parameters including nominal voltage, target number of cells in series, continuous discharge current, and intended equipment applications. Our engineering team will match the most suitable configuration for your requirements.
