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Meet the ALL-IN-ONE charging solution for your power-hungry devices! Our Universal 2-Slot USB Li-ion Battery Charger is expertly designed to safely and intelligently charge a wide range of popular lithium-ion battery sizes. Whether you're powering high-performance flashlights, vaping devices, or DIY electronics, this versatile charger is your reliable partner. Simply plug it into any USB port—from a wall adapter, power bank, or your computer—and enjoy the convenience of smart charging technology that does all the hard work for you, ensuring your valuable batteries are charged efficiently and protected from harm.
Wide Compatibility: Universally compatible with a vast array of Li-ion batteries! Effortlessly charges 18650, 20700, 21700, 14500, 18500, 16340, 10440 and more. It's the only charger you'll ever need!
Dual Independent Slots: Features two independent charging channels. Each slot automatically detects the battery type and charges them simultaneously without cross-interference. Perfect for charging two different battery types at the same time!
Smart & Safe Charging: Equipped with advanced intelligent IC chip, it automatically applies the CC-CV (Constant Current-Constant Voltage) charging algorithm. It intelligently switches to trickle charge once full and includes auto-cutoff to prevent overcharging.
Comprehensive Protection: Your safety is our priority! Built-in multi-protection system safeguards against Over-Charge, Over-Current, Short-Circuit, and Reverse Polarity. Charge with complete peace of mind!
Convenient USB Power: Powered by a standard USB port (5V/1A). Enjoy ultimate flexibility by using it with a wall charger, car adapter, laptop, or even a portable power bank. Great for home, office, or on-the-go use!
Perfect for charging batteries used in High-Lumen Flashlights & Torches.
Ideal for Vaping Devices & Mods requiring reliable 18650/20700 power.
Essential for powering DIY Electronics Projects, RC toys, and drones.
Great for Portable Electronics like digital cameras, LED lamps, and wireless devices.
A must-have for everyday use in Home & Office for all your rechargeable battery needs.
Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
Easy Returns: We want you to be completely satisfied. If you're not, you can return your product within 30 days of receiving your order. Please ensure the items are unused and in their original condition. For return instructions, please contact our support team.
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Been using this for months now. It stops charging when full, batteries are never warm. I've charged 14500, 18650, and 20700 without issue. A reliable little unit.
This was my first dedicated li-ion charger. Easy to understand, just insert and charge. It brought a dead 18650 back to life that my old charger couldn't. USB makes it portable.
I use it exclusively for 18650 cells. One slot charges a bit faster than the other but that's minor. The LED is bright and shows status clearly. Good value.
Exactly what I needed. The 2-bay design is perfect for my small desk. USB input means I can use my phone brick. The sliding contacts are smooth, holds cells tight.
I like that I can put a 18650 and a 14500 in at the same time. The auto-detection works well. No overcharging so far. A great universal travel charger.
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