The DALY Lithium-Ion 20S 72V 50A Waterproof BMS is a high-quality Battery Management System designed for 20-cell Lithium-Ion battery packs. This smart BMS ensures the safe operation of your battery pack by providing protection against overcharge, over-discharge, overcurrent, and short circuits. It supports passive balancing to maintain voltage consistency across cells, thereby increasing battery efficiency and lifespan. With its waterproof design, it is ideal for use in e-bikes, solar systems, energy storage systems, and electric vehicles.
Key Features
Specifications:
| Parameter | Value |
|---|---|
| Battery Type | Lithium-Ion (Li-ion) |
| Series | 20S (20 cells in series) |
| Nominal Voltage | 72V |
| Continuous Discharge | 50A |
| Charging Current | 50A |
| Overcharge Detection | 4.2V ± 0.05V per cell |
| Over-discharge Detection | 2.50V ± 0.05V per cell |
| Overcurrent Protection | 51A |
| Balance Function | Yes (Passive Balancing) |
| Balance Voltage | 3.70V per cell |
| Communication | UART, RS485, Bluetooth, CAN |
| Waterproof | Yes |
| Temperature Range | -15°C to 60°C |
| Dimensions | 125mm × 65mm × 13mm (typical) |
| IC Chip | Integrated Smart Protection IC |
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Package Includes:
1 x DALY Smart BMS Lithium-Ion 20S 72V 50A Battery Management System Module
1 x Battery Connection Cable
1 x Bluetooth Module
1 x Buzzer/Alarm Module
1 x Switch with Connector
2 x Temperature Sensors(4 NTCs)
1 x Communication/Signal Cable
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.
We ship all over India with free shipping on all prepaid orders above ₹500. For Cash on Delivery (COD) orders, ₹80 will be charged for orders below ₹599 and ₹30 for orders above ₹599.
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.