Review on Tenergy TN456 Intelligent Universal Battery Charger: 4 Slots, LCD Display, USB Output, Power Adapter - Ideal for Li-ion, NiMH, and NiCD Rechargeable Batteries by Christopher Meyer

Batteries are more volatile, as many of us know, requiring special charging techniques and careful separation to prevent overcharging and possible destruction. Tenergy TN456 answers the call. One of the reasons I like it so much is that it automatically selects the best charging mode over a wider range than comparable devices. In my cordless soldering iron, for example, I use the rare "Sub-C” nickel-cadmium rechargeable batteries. Only the TN456 can charge them correctly. It's also well made and exudes a premium feel. The LCD display shows charging progress and other useful information, making it interactive and easy to use. It's easy to read as it's backlit unlike every other charger I own. The four charging slots, each with its own charging circuit, range in size from AAA to D, but for larger slots only in combination as shown. It's a small compromise compared to its compact size. A nice touch is the rear, which offers charging speeds depending on the size of the battery. It answers the most frequently asked questions and shows that the manufacturer cares about getting the most out of its device. There are several offerings in the complex charger category. They share common features like the "test" option to discharge before charging - the only way to know the capacity of the battery. What sets it apart is its versatility, build quality, compact size and backlit LCD display.