4S 10A Battery BMS Module with Connector for 3.7V NMC Cells is designed to protect and manage 4-series (4S) 3.7V NMC lithium battery packs by providing overcharge, over-discharge, overcurrent, and short-circuit protection. Featuring a compact design with a balance connector, it ensures safe charging, stable discharging, and extended battery life for DIY battery packs, portable power systems, electric vehicles, and energy storage applications.
The NTC (Negative Temperature Coefficient) sensor in a Battery Management System (BMS) continuously monitors the temperature of the battery pack to ensure safe operation. As the battery temperature increases, the resistance of the NTC sensor decreases, allowing the BMS to detect overheating. If the temperature exceeds the preset safety limit, the BMS automatically disconnects charging or discharging to protect the battery from damage, overheating, and potential thermal runaway. Once the temperature returns to the safe operating range, the BMS restores normal operation, ensuring enhanced battery safety, reliability, and longer service life.
| Parameter | Value |
|---|---|
| Product Type | 4S Battery BMS Module |
| Battery Type | 3.7V NMC Lithium Cells |
| Cell Configuration | 4S |
| Charging Voltage | DC 16.8V (CC/CV) |
| Continuous Charging Current | 10A Max |
| Continuous Discharge Current | 10A Max |
| Overcharge Detection | 4.25 ± 0.05V/Cell |
| Over-Discharge Detection | 3.0 ± 0.1V/Cell |
| Overcurrent Detection | 15 ± 3A |
| Operating Temperature | -45°C to +65°C |
| Storage Temperature | -45°C to +85°C |
| Connector | Balance Connector |
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Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
If you receive a product damaged during shipment, please notify us within 3 days of receiving the product, supported by proper pictures and a description. Once our support team accepts the return, we will provide a replacement or a complete refund, including the return shipping cost.
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
We don’t accept returns for products damaged due to improper use. Moreover, we don’t accept returns if the ordered product is not suitable for a specific application. Please read the product specifications and datasheet carefully before placing an order. Returns are accepted only within 3 days from the date of delivery.
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