Midland SP-400 Series User Manual page 28

The battery pack must be charged prior to use. To charge the
battery pack you should set up the charger and insert the radio
(or battery) as follows:
1. Plug the AC adapter into a grounded AC power outlet which
supplies the specified input voltage for the AC adapter.
2. Connect the DC plug on the AC adapter to the mating socket
on the back of the charging cradle.
3. Make sure the radio is switched off.
4. Insert the radio into the cradle with the front of the radio
facing toward the front of the cradle (the three metallic
contacts of the battery pack must make contact with the
three contacts inside the cradle). The LED indicator will glow
red indicating the battery is charging.
5. The rapid charger will fully charge the 1300 mAH NiMH
battery in approximately 1.5 hours. The rapid charger will
change to a green LED and switch to a trickle charge rate
when a full charge is detected. The standard rate charger
will charge at a constant rate (requires about 12 hours to
fully charge a dead battery) and batteries should not be left
in the charger longer than 15 hours. The LED of the
standard rate charger does not signal a fully charged battery
state.
!
Do not leave the battery in the charger longer than
15 hours.
When possible, charge the battery when it is fully
discharged or, you have used it for the major part of its
capacity. Otherwise the battery's capacity could be
temporarily reduced. Please see the paragraph "Memory
effect".
Removing the battery before it is fully charged will
temporarily reduce the duty cycle.
28
SP-400 Series User's Guide
© 2005, Midland Radio Corporation