Charging the batteries: Charging option for 1-4 AAA / AA NiMH batteries.Charging, discharging, testing and refreshing the batteries : Every charging slot has a separate button for specifying individual settings for each battery. Four charging programs are available, with which the batteries can be charged, discharged, refreshed (by repeatedly charging and discharging), or tested for capacity.
Automatic shut-off: State of the art microprocessor-controlled charging technology with multiple overcharge protection guarantees optimally charged batteries and a gentle charging process. Quick charge: The charging current can be manually selected in advance using the function keys, and the laid-in round cells can thus be charged with up to 1800 mA in a rapid charging process. If the setting is not changed, the charge is carried out with the default charging current of 600 mA.
Individual monitoring: In Powerline 4.2 Pro each round cell (either AAA or AA) can be placed in any charging slot. Each battery is individually monitored during charging, and individually charged to its maximum capacity.
Multifunctional LCD display: Shows the selected charging program and the cell voltage (in V), the charge/discharge current (in mA), the capacity (in mAh) or the elapsed time (in hh:mm) separately for each charging slot, thereby providing a reliable control of all operations. It also alerts you when a non-rechargeable battery is inserted, or when a battery is faulty.
USB charging socket: The USB port offers the possibility to also charge mobile devices with fixed batteries, such as smart phones.