curatio APL-4 Simultaneous, microprocessor-controlled discharge / charge of four different battery blocks. Battery connection through 4mm safety plugs with program memory in APL-4 or Battery connection through 15-pin plug with external program memory for charging and discharging currents, number of cells, battery capacity, etc. The program stored in the plug of the adapter is automatically activated by connecting the adapter to the APL-4 and plugging-in the bat-teries into the adapter. It is not neccesary to perform a manual change in the program when changing batteries. A different adapter is offered for each type of battery. The battery adapters are supplied with preset charging parameters. The programming can be blocked to prevent errors of operation. Simple Changes to the charging program through pressing four keys and German/English language help menu in the display screen. Set values remain so, even when the appliance has been shut off. Changeable Cycles for the batteries: Charge Only; Discharge Only; Discharge - Charge; Charge - Discharge - Charge; conditioning (= repetitive charging-discharging-charging auto-matically until the max. battery capacity has been reached in choosable cycles 2 to 6); Charge - Discharge - Charge with settable repeated Dis-charge - Charge after 1 to 30 days. By way of Forming i.e. regeneration, in which the battery is charged and discharged repeatedly, battery cells suffering from loss of capacity can be returned to higher capacity. Mode for manual settings of the End-Of-Discharge and End-Of-Charge Voltage. Capacity measurement for both charge and discharge of rechargeable batteries. Display of the battery data on a large, illuminated 2 x 16 character LCD. Determination of the condition of the battery through the measured capacity and through the voltage curve. Measurement of the self-discharge of a battery block within a programmable period of time.  A special charge procedure, tailored to the particular battery, is used for every type of battery, in which the charging process reliably switches off when "End-of-Charge" is reached. This insures that an overload, or equally a deep discharge, will be avoided. For Nickel-Cadmium-Cells and Nickel-Metal-Hydride-Cells the charge completion is determined using the -Delta/U method (i.e. when the battery is fully charged, the cell voltage drops slightly. The dropping in cell voltage indicates charge completion). For all other types of batteries the charge completion is indicated by reaching the End-of-Charge Voltage. Rapid Charge Batteries can be charged quickly. The Nickel-Cadmium-Batteries and the Nickel-Metal-Hydride-Batteries are charged using the "Reverse Pulse Charging System" in order to reduce Memory Effects. This charging procedure works against the formation of crystals in the batteries. The batteries need not be discharged before every recharge, which means a longer battery life.    After charging, a Trickle Charge is carried out. The battery blocks may remain connected to the curatio permanently.  Battery Adapter - Universal adapter and adapter made for particular types of batteries are available.