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Free Shipping
On prepaid orders above INR 500
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Cash On Delivery
COD available for orders above INR 500
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3-5 Days Delivery
Shipped within 24 hrs
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Dedicated Support
Mon to Sat - 10 AM to 6.30 PM
The DALY Li-ion 20S 72V 50A BMS is a high-performance battery management system designed to protect and manage lithium-ion battery packs configured in a 20-series (20S) arrangement, providing a nominal voltage of 72V. It ensures stable and safe battery operation by delivering comprehensive protection against overcharge, over-discharge, overcurrent, short circuit, and overheating.
Built with a waterproof, dustproof, and vibration-resistant housing, this BMS is well-suited for high-voltage applications such as electric bikes, electric scooters, solar energy storage systems, backup power units, robotics, and custom-built battery packs. It features intelligent passive balancing and precise voltage monitoring to enhance battery efficiency, extend lifespan, and maintain consistent performance across all cells.
Features of DALY Li-ion 20S 72V 50A BMS:
- Suitable for 20S (20 cell) Li-ion battery configurations
- Intelligent passive battery cell balancing
- Full protection: overcharge, over-discharge, overcurrent, short circuit, and temperature
- Accurate voltage monitoring and state of charge management
- Rugged waterproof and dustproof enclosure
- Compact and lightweight design for easy installation
- Ideal for e-bikes, e-scooters, solar storage, UPS systems, and DIY battery packs
Specifications of DALY Li-ion 20S 72V 50A BMS:
| Parameter | Value |
|---|---|
| Battery Type | Li-ion (Lithium-ion) |
| Series | 20S (20 cells in series) |
| Nominal Voltage | 72V |
| Continuous Discharge Current | 50A |
| Charging Current | 25A |
| Overcharge Detection Voltage | 4.25V ± 0.05V (per cell) |
| Over-discharge Voltage | 2.8V ± 0.05V (per cell) |
| Overcurrent Detection | 55A |
| Balance Function | Yes (Passive Balancing) |
| Balance Voltage | 4.18V (per cell) |
| Short Circuit Protection | Yes (with automatic recovery) |
| Operating Temperature | -15°C to 60°C |
| Waterproof Rating | IP65 |
| Dimensions (Approx.) | 125mm × 65mm × 13mm |
| Weight | 210g |
| IC Chip | Integrated Protection Circuit |
Package Includes:
1 × DALY Li-ion 20S 72V 50A Waterproof Battery Management System
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.