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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 5S 15A Lithium Battery Protection Board is designed to protect 5-series (5S) 18650 lithium battery packs from common electrical faults such as overcharge, over-discharge, overcurrent, and short-circuit conditions. It ensures safe and stable operation of multi-cell battery packs by balancing individual cell voltages and preventing damage caused by improper charging or excessive load. Ideal for DIY battery packs, e-bikes, power banks, energy storage systems, and portable electronics requiring reliable multi-cell protection.
Features:
- Protection for 5-series (5S) 18650 lithium battery packs
- Supports continuous discharge current up to 15A
- Provides overcharge, over-discharge, overcurrent, and short-circuit protection
- Built-in cell balancing function for longer battery life
- Ensures stable and safe battery operation during charging and discharging
- Compact PCB design for easy integration into battery packs
- Suitable for e-bikes, power tools, DIY battery packs, and energy storage applications
Specifications:
- Battery Configuration: 5S (5 × 3.7V lithium cells in series)
- Input Voltage (Charging): 21V – 22V
- Nominal Pack Voltage: 18.5V
- Operating Voltage Range: 15V – 21V
- Continuous Discharge Current: 15A
- Peak Current: 25A – 30A (varies by model)
- Overcharge Protection:
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Cutoff Voltage: ~4.25V per cell
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Release Voltage: ~4.15V per cell
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Over-discharge Protection:
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Cutoff Voltage: ~2.7V – 2.8V per cell
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Release Voltage: ~3.0V per cell
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- Overcurrent Protection: ~25A – 35A (batch dependent)
- Short-Circuit Protection: Yes (auto recovery)
- Balancing Function: Yes (passive balancing)
- Balance Current: 30–50mA (typical)
- Operating Temperature: –20°C to +60°C
- PCB Size: Compact board (varies slightly by batch)
- Applications: E-bikes, power tools, solar storage, DIY power banks, robotics, and battery backup systems
Package Includes:
1 × 5S 15A 18650 Lithium Battery Protection BMS Module
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.