M3 Mobile UL10 - 1.2 Battery

Using this manual
11
Charging spare battery
Position the spare battery to battery pack of the cradle as indicated in the following figure.
Charging LED on the cradle indicates the charging status.
Remove the spare battery from the charging slot when charging is done.
Battery attached to the PDA will be charged first than the spare battery on the cradle, when
two batteries are being charged at the same time.

M3 Mobile recommends replacing the battery if the battery is being used
for 2 years.

Battery capacity decrease when charging and discharging is repeated.
Battery information can be checked in Start

Settings

System

Power.