The 1S 18650 Lithium Battery Capacity Indicator Module is a compact LED-based level tester designed to visually display the remaining charge of a single-cell (1S) lithium battery. Using a simple 4-level LED bar display, it provides an instant indication of battery status, making it ideal for portable devices, DIY battery packs, power banks, and energy storage projects. The module is easy to integrate and offers reliable monitoring of lithium cell voltage.
4 LEDs ON: ≥ 4.0V (Full)
3 LEDs ON: ~3.85V
2 LEDs ON: ~3.65V
1 LED ON: ~3.45V (Low)
< 3.3V: Battery very low
1 × 1S 18650 Lithium Battery Capacity Indicator Module - LED Level Tester
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.