BT 1000 - Manual (Page 12)

2. Plug in the charger
Plug the power cable into the power socket on the
underside of your Synergy Charger. Switch on the mains
power and place the handset in the charger. The red
charging light comes on.
3. Charge the handset battery for at least
16 hours
Before you use your Synergy Handset for the first time it
is important to have the handset battery fully charged.
We recommend that you leave the Synergy Handset on
charge for at least 16 hours. The display will show REG.
This indicates that the handset needs to be registered
with a base station.
8
To keep your battery in the best condition, leave the handset
off the base station for a few hours at a time. (After the
initial 16 hour charge.)
Battery performance
After charging your Synergy Handset for the first time,
subsequent charging time for the handset batteries is
approximately 4-5 hours. Batteries and case may become
warm during charging. This is normal and not dangerous.
Under ideal conditions, the handset battery should give
about 6 hours talktime or 60 hours standby on a single
charge. Please note, however, that the new NiCad battery,
does not reach its full capacity until it has been in normal
use for several days.