Features: Can test the internal resistance of the battery, Supports 4.35V high voltage lithium battery. In addition to charging the battery, this charger also comes with aBuilt-in balance toy with a charger with balance battery function. You don't need to adjust the voltage and current, just choose the type of battery that suits you. It also has fast and storage charging functions, data storage and loading functions. This B6 charger can charge a variety of rechargeable batteries, including NiCd/NiMH batteries, Li-ion batteries, lithium-phosphor batteries, LiFe batteries, LiHV batteries, and Pb batteries. Our charger is made of high-quality chips and materials to provide you with high-quality products and function performance, and the charger also has short-circuit protection, overcharge protection, overcurrent protection, and over-temperature protection to ensure safety. You can buy with confidence, it is very safe. The B6 charger has an LCD display, you can view all the charging status and settings on the LCD screen of the charger when you browse the mode and select. To make it easier to choose the trybu.lt you need; br/gt; Pressing the "Batt type" button to enter the user settings or select the battery type or exit the program, if you want to change the parameter value in the program, press the start/enter button to get the blin k, then change the value by the "INC" or "DEC" key. The value will be saved by pressing the "Start/Enter" button once. Press and hold the "start" button to charge the battery.,