GRAUPNER ULTRA DUO PLUS 80 Bedienungsanleitung Seite 47

Note: in 'Automatic mode' (see Chapter 16) the charge current is controlled automatically; any manual settings are ignored.
WARNING: it is essential to observe the maximum charge current for your battery! This is generally printed on the pack itself. If you are
unsure, charge the battery at 1C (e.g. 2.2 A for a 2200 mAh battery). If the battery is charged using incorrect settings, the result could be
serious damage to the battery, or even a fire!
Press the ENTER button again to highlight the Δpeak voltage. NiXX batteries are charged using the Δpeak method: the battery voltage rises continuously
during the charge process; when the battery is fully charged, the battery temperature starts to rise, and the voltage starts to decline. The charger exploits
this voltage fall-off (∆peak) as the trigger to switch off the charge process. For NiMH batteries the default setting is 5 mV / cell, for NiCd batteries it is 8
mV / cell.
Certain nickel cell types cannot be charged using the ^ peak method. To cater for these types, the ULTRA DUO PLUS 80 includes the option of switching
off the ∆peak detection (zeroPeak).
WARNING: if you are using a type of battery which is described as expressly unsuitable for charging with the zeroPeak method, this
setting must never be selected, otherwise the battery could become very hot. It may then be seriously damaged, or even start a fire!
JThe higher the ∆peak voltage you select, the more energy is charged into the battery, but at the expense of higher temperature. We therefore recom-
mend that you use the default settings, and only change them if the process fails to give the battery a full charge - which you can detect from its tem-
perature: a fully charged NiXX battery should be warm to the touch (approx. 40°C) when charged at room temperature; if it is colder, then it is safe to
increase the ^ peak voltage in 0.1 V increments. The final temperature must not exceed 55°C; if you are unsure, use the optional temperature sensor!
WARNING: a ∆peak voltage higher than 5 mV / cell must never be set for NiMH and RTU batteries, as a higher figure may allow the battery
to become very hot. The temperature must never be allowed to exceed 55°C, otherwise the battery may be seriously damaged, or even
start a fire. Use the temperature sensor!
With the Select arrow in the Charge line (CHG), start the charge process by holding the ENTER button pressed in for two seconds.
Discharge DCHG
The Discharge line (DCHG) displays the discharge current and the final discharge voltage per cell. These parameters can be selected with the ENTER
button, and altered using INC or DEC. The discharge current is limited to 1C by default, i.e. if you enter 2200 mAh under battery capacity in the charge
memory, the discharge current is automatically set to 2.2 A. The discharge current can be set to any value in the range 0.1 to 10 A, taking the maximum
discharge power into account. If the unit is unable to discharge at the selected current, the process does not take place at the maximum possible current.
If this should occur, the screen displays the discharge current actually in use.
Note: In 'Automatic mode" (see Chapter 16) the charge current is controlled automatically; any manual settings are ignored.
The final discharge voltage is pre-set to 0.8 V / cell; this is a very good value both for NiCd and NiMH batteries, and should never be reduced.
With the Select arrow in the Discharge line (DCHG), start the discharge process by holding the ENTER button pressed in for two seconds.
Operating Manual ULTRA DUO PLUS 80 47