The Liitokala Lii-202 (V3086_P) Smart Battery Charger is a single-slot charger designed to handle a wide variety of rechargeable batteries, from common AA and AAA NiMH cells to various Lithium-ion sizes like 18490, 18350, 16340, 14500, and 10440. I’ve been using this charger for several weeks now, putting it through its paces with different battery types and charging scenarios to provide you with a comprehensive review.

The Lii-202 boasts several key features that set it apart. The micro-USB input is convenient, allowing for charging via a variety of power sources. The ability to select between 500mA and 1000mA charging currents is a nice touch, allowing for optimized charging for different battery chemistries and sizes. The LED indicator clearly displays the charging progress in 25% increments, providing a visual cue of the charging status. Safety features are a key selling point, including over-charging, over-discharge, short-circuit, and reverse polarity protection. The charger also includes an impressive “0V voltage activation function” and a “refresh function” for reviving depleted batteries. This is particularly useful for recovering batteries that have been stored for a long time.

In terms of performance, the Lii-202 delivers as promised. Charging times were consistent with the advertised specifications, and I experienced no issues with any of the battery types I tested. The safety features worked as intended; I attempted to insert batteries with reversed polarity, and the charger refused to operate, preventing any potential damage. The 0V activation function successfully revived a few older batteries I had, demonstrating its functionality. Overall, the charging process was smooth and reliable.

I particularly appreciated the independent management system. This ensured that each battery was charged optimally, without affecting the performance of other batteries in the same batch, which is a huge advantage over some simpler chargers.

One minor point of concern was the relatively slow charging speed with some larger capacity batteries; the 500mA current might be too low for those cases, but as mentioned, you can utilize the 1000mA setting to address this issue. However, this is a trade-off for safety and longevity of the battery.

Pros:

• Wide battery compatibility
• Selectable charging current (500mA/1000mA)
• Clear LED charging indicator
• Comprehensive safety features
• 0V activation and refresh function
• Independent management system
• Micro-USB input

Cons:

• Charging speed may be slow for high-capacity batteries at the lower current setting.
• Single slot only (requires multiple charging cycles for multiple batteries)

The Liitokala Lii-202 (V3086_P) is a solid and reliable smart battery charger that offers excellent value for its price. While the single-slot design might be a limiting factor for users needing to charge multiple batteries simultaneously, the robust safety features, wide compatibility, and convenient functions make it a worthwhile investment for anyone who regularly charges rechargeable batteries. I highly recommend it for its dependability and ease of use. Its ability to recover seemingly dead batteries makes it a great addition to any tech enthusiast’s toolkit.