This 21V 2.5A Lithium-Ion Battery Charger is specifically designed to charge 5S Li-ion NMC battery packs, which have a nominal voltage of 18.5V and a full charge voltage of 21V. Engineered with an SMPS (Switch Mode Power Supply) design, this adapter efficiently converts AC mains power (100–240V) into a stable 21V DC output at 2.5A, making it ideal for safe, reliable, and high-speed charging.
Ideal for e-bikes, cordless drills, electric toys, balance vehicles, robotics, or DIY electronics, this charger offers optimal performance with built-in protection features.
1 × 21V 2.5A Lithium-Ion Battery Charger (SMPS Adapter)
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.