Nortel Meridian 1 Manual page 45

Procedure 3
M2616CT Installing the battery
1 Place the handset battery in the base of the handset so the battery
engages with the contact points.
2 Snap the battery into place.
3 Slide the spare battery (optional purchase) into the spare battery
compartment, located at the top of the handset cradle. The yellow
indicator lights when the battery is properly connected.
The battery begins to charge as soon as the handset is placed in its
cradle. The main handset battery 700 mAh fully recharges in
approximately 2.25 hours, the 1000 mAh battery charges in
approximately 2.50. It should be noted that the that the spare battery
charging port on the base unit provides a "trickle charge" that charges
the battery at a slower rate than through the handset.
Telephones
Telephone and Attendant Console Installation
Page 41 of 144