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
- Supports 20 series Lithium-Ion cells (20S)
- 72V nominal battery system compatibility
- Smart BMS with Bluetooth, UART, RS485, CAN.
- Includes switch and buzzer for better protection support.
- 50A continuous discharge current
- Full protection: overcharge, over-discharge, short circuit, temperature
- Passive balancing for enhanced battery life
- Compact and waterproof design for reliable outdoor usage
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 |
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
Returns Policy
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
1. Damaged During Shipment
If you receive a product damaged during shipment, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.2. Wrong Item Shipped
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.
Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product. Returns are accepted only with 3 days from the date of delivery.Shipping
We ship to all over India with free shipping on all prepaid orders above 500. For Cash on Delivery orders INR 80 will be charged for orders below INR 599 and INR 30 will be charged for the orders above 599. Please contact to our support team at support@quartzcomponents.com for any question related to shipping.
Please note that the Minimum Order Value is INR 500 for COD orders.