Connect Power
If the original power supply is not available,
power can be supplied from a USB wall adapter
(Smartphone power supply).
This may reduce the battery life, however.
12
BATTERIES AND CHARGING
Connect to the outlet
Note:
CHARGING TIMES
15 minutes
30 minutes
1 hour
2 hours
Always store the U2 at room temperature.
When storing the unit, please check the battery
state regularly and charge if necessary.
BATTERY LIFE
30 minutes
1 hour
2 hours
5 hours