AASTRA DT292 for MD Evolution User Guide EN - Manual (Page 125)

125 MD Evolution – Cordless DT292
Installation
Battery
The phone is powered by a rechargeable battery. You can fully
charge an empty battery by placing the phone in the charger for 4
hours. A fully charged battery gives you up to 17 hours calling time
or up to 140 hours standby time.
Note: The calling time and standby time is shortened if the
hands-free speaking function is used a lot.
The phone has a battery meter, which indicates the power
remaining in the battery.
Note: The phone is powered by a Nickel Metal Hydride
(NiMH) battery. It can be recharged at any time. To keep the
battery fully charged, you can put or leave the phone in the
charger without any problem.
Reading the battery meter
When the battery is fully charged, the battery meter on the phone
display consists of four blocks. The number of blocks decreases as
the battery discharges. If the battery is almost empty, the battery
meter and the red light on the phone flash. An alarm sounds if there
is less than 15 minutes calling time remaining in the battery.
Battery performance
The table below indicates the performance:
Talk time
(hours) Standby time
(hours) Charge time
(minutes)
High capacity
battery: 17 140 240