13.2. BATTERY CHARGING
13.2 Battery Charging
To prevent premature ageing of the batteries it is good practice to always:
• charge the batteries completely before re-inserting them into the Altus NR2.
• use the batteries until they have completely discharged.
13.2.1 Using the external battery charger
The batteries of the Altus NR2 can best be charged using the external battery charger. For a
totally drained battery of 3400 mAh a charging time of 3 to 4 hours can be expected.
13.2.2 Using the A/C adapter
The batteries of the Altus NR2 can be charged in the device while it it connected to an
external power supply.
If the Altus NR2 is switched off during charging then there is no
visual indication of the charging: all front-panel LEDs remain off.
• When inserting the lemo plug into the Altus NR2, align the red dot on the connector
with the centre of the unit as shown in Figure 13.2-1.
Table 13.2-1:
The red dot on the lemo plug should align with the centre of the
Altus NR2
• Push the lemo connector firmly into the socket until the locking mechanism clicks into
place.
13.2.3 Using the USB adapter
The batteries can be charged using the USB cable. The charging speed is very dependent
of the quality of the charger. It is recommended to use the A/C adapter for charging the
batteries in the unit.
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