4S 40A Charging / 80A Discharging LiFePO4 BMS – 12.8V Battery Protection Board with Cell Balancing and Common Port is designed to manage and protect four-cell series-connected lithium iron phosphate (LiFePO4/LFP) battery packs. It supports a nominal battery voltage of 12.8V, a maximum charging current of 40A, and a maximum discharging current of 80A. The integrated protection circuitry helps safeguard the battery pack against overcharging, over-discharging, overcurrent, and short circuits. Its cell-balancing function helps maintain voltage consistency across series-connected cells, while the common-port configuration uses a shared connection for charging and discharging.
| Specification | Value |
|---|---|
| Product Type | Battery Management System (BMS) |
| Battery Chemistry | LiFePO4 / LFP |
| Cell Configuration | 4S |
| Nominal Cell Voltage | 3.2V |
| Nominal Battery Voltage | 12.8V |
| Maximum Charging Voltage | 14.6V |
| Maximum Charging Current | 40A |
| Maximum Discharging Current | 80A |
| Port Configuration | Common port |
| Cell Balancing | Supported |
| Overcharge Protection | Yes |
| Over-discharge Protection | Yes |
| Overcurrent Protection | Yes |
| Short-Circuit Protection | Yes |
| Charging Connection | Common port |
| Discharging Connection | Common port |
| Applications | LiFePO4 battery packs, solar storage, backup power, and portable DC systems |
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1 × 4S 12.8V 40A Charging / 80A Discharging LiFePO4 BMS with Cell Balancing
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
You must report any damage within 3 days of receiving the product. Please send clear pictures of the damaged item and packaging along with a short description. Once our support team accepts the claim, we will arrange a replacement or a full refund, including return shipping costs.
If the item you received is different from what is shown on our website, you must report it within 3 days of receiving the product. Please send a video of the first-time unboxing that clearly shows the sealed package, the opening process, and the products received, along with clear pictures and a short description of the issue. Once our support team verifies the claim, we will accept the return and provide a refund or replacement as per your choice.
If the product is defective or not functioning as described, please notify us within 3 days of receiving the product. Include proper pictures, a short video, and a description of the issue. Once our support team verifies the defect, we will provide a replacement or a complete refund, including the return shipping cost.
If any item or accessory listed on the order is missing from the package, you must notify us within 3 days of receiving the product. You are required to record a proper video while unboxing the package for the first time (showing the sealed package, opening process, and all contents). Please also share pictures of the received items and the packing list or invoice. Once our support team confirms the missing item, we will ship the missing item at no extra cost or issue a partial refund.
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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For any questions related to shipping, please contact our support team at support@quartzcomponents.com.
Note: The minimum order value for COD orders is ₹500.