AKG’s CU 700 is a fast charger that rapidly charges the rechargeable batteries inside the transmitter without damaging the cells' elements. The CU 700 charger determines the optimum charge current and has a cooling fan to help keep the temperature of the cells under control. Charging is terminated when both batteries are fully charged. The CU 700 charger use the pulse technology in which a pulse is fed to the battery. This DC pulse has a strictly controlled rise time, pulse width, pulse repetition rate (frequency) and amplitude. With pulse charging, high instantaneous voltages can be applied without overheating the battery.
