User's Manual

5
Note:
a) The operating time depends on the outside
conditions, such as ambient temperature,
charging time, the cycles of charging, etc. It is
recommended for safety to charge the battery
beforehand or to prepare spare full-charged
batteries.
b) The remaining voltage of battery shows the
power level, regarding to the current measure
mode. In normal, the consumption of distance
measurement mode is higher than angle
measurement mode. When switching the
measurement mode from angle to distance in
a low battery voltage, it might interrupted the
operation.
Charging
The battery must be charged prior to using
before the first time operation.
The battery SB-35a should be charged only
by the official charger NC-10, which packed
together with the instrument. Please connect
the power supply in 220V, under 0°~±45°C.
When the indicator on the charger is red, the
charging process has begun. When indicator
turns green, the charging has finished. For
safety, please pull out the battery and
charger in time.
Note: In order to get the maximum service
life, please charge the battery at least once
a month.