Nixx Charge Program - GRAUPNER ULTRA DUO PLUS 80 Operating Manual

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Operating manual (29 pages)

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battery is charged at a constant current until it reaches the final charge voltage. The charge current is then slowly reduced until the pack is full. By its

nature this method charges about 70 - 80% of the pack's capacity relatively quickly, but the final 20 - 30% takes disproportionately longer owing to the

lower current. The capacity limit TCS CAPACITY (10 - 100%; default setting 100%) generates an audible alert at the selected percentage; the charger

then responds by continuing or halting the charge, as programmed under the following point TCS END ACT. If a capacity of 70 - 80% is sufficient for your

purposes, you can halt the charge process at that point, and enjoy much shorter charge times.

TCS response TCS END ACTION

The capacity limit TCS CAPACITY emits an audible alert when the programmed percentage is reached, while the TCS response defines how the charger

reacts: continue charging or stop the charge process.

Continue charging (CONTI.): the alert is generated at the programmed percentage, but charging continues thereafter.

Stop (STOP): charging stops.

The following screen displays appear if you select the battery type NiXX.

The screen shows a maximum of four lines; pages 2 and 3 appear when

you move the Select arrow further down.

Cycle mode CYCLE

Cycle mode provides a means of charging and discharging a battery in

(multiple) cycles, e.g. in order to restore the pack's normal performance

more quickly after a protracted period of storage.

Move the Select arrow to the CYCLE line, then press ENTER. The cycle

can commence with a charge (C→D) or a discharge (D→C) process; use the INC or DEC button to select your preferred sequence, then press ENTER

again. The cursor now moves to the number of cycles, where you can select any number in the range 1 to 10 cycles. Pressing ENTER causes the cursor

to move to the interval time (1 - 30 minutes), where you can enter the interval between the charge and discharge phases.

Note: Cycle mode uses the automatic charge and discharge modes, i.e. at this point you cannot pre-select any charge or discharge currents.

With the Select arrow at the Cycle mode line (CYCLE), start the process by holding the ENTER button pressed in for two seconds.

Charge CHG

The Charge line (CHG) displays the charge current and the ∆ peak voltage per cell. These parameters can be selected with the ENTER button, and

altered using INC or DEC. The charge current is limited to 1C by default, i.e. if you enter 2200 mAh under battery capacity in the charge memory, the

charge current is automatically set to 2.2 A. The charge current can be set to any value in the range 0.1 to 20 A, taking the maximum charge power into

account. Depending on the power supply, the unit may be unable to charge at the selected current, i.e. the maximum possible current may not be used

for charging. If this should occur, the screen displays the charge current actually in use.