Professional test equipment for many rechargeable batteries and batteries. The compact and user-friendly test device checks the energy content of the most common rechargeable batteries and batteries within a very short time. Display of energy content and voltage. The actual energy content of the cell is displayed in 10% increments within 2-3 seconds. In addition to the percentage capacity, the cell voltage is given in volts (V). Easy handling. The measurement is very easy with the help of a contact pin or by simply pressing on the intended spot.