Smart Universal Battery Charger for Rechargeable Batteries

The Keenstone brand is a professional battery and charger manufacturer. In the past, we often experienced the frustration of dead batteries while on the way to work, camping, or engaging in outdoor adventures. Additionally, battery life has been steadily decreasing, leading us to question the true nature of our batteries.

To address these issues, our professional team has spent the last 2 years developing a smart battery charger. With this charger, we can now charge our batteries in the car while outdoors. The intelligent detection system is designed to allocate different charging schemes based on the type of battery, making the charging process more efficient and intelligent.

Before our products leave the factory, we conduct thorough performance tests on each one, and we eliminate any non-conforming products. This ensures that you can purchase and use our products with complete confidence.

The Keenstone battery charger is designed to effectively prevent reverse, short circuit, overcharge, over-discharge, and over-current damage to the battery, providing users with a safe and reliable charging experience.

The Keenstone 18650 Universal battery charger comes with both an AC adapter and a car adapter, allowing you to charge your batteries in a variety of settings. The charger is made of ABS, a V0 class fire-retardant material, ensuring its safety and durability.

Our products are compatible with a wide range of battery types, including Li-ion, LiFePO4, IMR, INR, ICR, 25500, 22650, 18650, 18490, 18500, 18350, 16340, RCR123A, 14500, 10440, Ni-MH, and Ni-Cd batteries, from A to AAAA and SC sizes.

Keenstone's battery charger is designed to the highest quality standards, with certifications including UL, CUL, CE, TUV, GS, PSE, FCC, and RoHS. The built-in intelligent circuits provide comprehensive protection for the battery, ensuring its safety during the charging process.

The LCD display on the charger allows you to monitor the status of each of the four independent charging bays, including voltage, current, and time. You can easily check the charging status of your batteries by pressing the A/B/C/D buttons.

The charger offers two charging current options, 500mA and 1000mA, allowing you to tailor the charging process to your specific needs. The black and grey color options cater to different aesthetic preferences.

In conclusion, the Keenstone battery charger is a reliable, safe, and versatile solution for all your battery charging needs. With its advanced features and comprehensive protection, you can have peace of mind while keeping your batteries charged and ready to go.

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