Extending battery life – Avaya TransTalk MDW 9040 User Manual

Page 40

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3

Using the Battery Charger

The Battery Charger

MDW 9040 Wireless Pocket Phone Installation and Use, 503-801-190

32

Issue 2, February 2001

The color of the battery charger’s LEDs indicates the state of the corresponding battery pack, as shown in the
following table:

Extending Battery Life

The battery charger will charge a battery pack in the handset if you simply insert the handset in the battery
charger’s handset cradle; however, the Refresh process fully discharges the battery pack before recharging it,
thereby ensuring the best possible charge and the longest talk time. For more information about the battery
charger, see

The Battery Charger

” in

Chapter 2

.

“Memory effect” reduces a battery's capacity and can occur when you repeatedly recharge a battery pack before
it is fully discharged. The nickel metal hydride battery pack shipped with your MDW 9040 is resistant to the
memory effect. Even so, it is recommended that you refresh your battery pack at least once a week.

The following table shows how long refreshing takes, depending on how much charge is left in the battery pack
when you insert it into the charger and press the REFRESH button:

Battery charger
LED shows...

If it is the SPARE LED,

the battery pack in

the spare battery

compartment...

If it is the HANDSET
LED, the battery pack
in the handset...

If it is the REFRESH LED,
the Refresh button was
pressed, and the handset
battery pack...

Steady orange

Is charging

Is charging

N/A

Steady green

Is fully charged

Is fully charged

N/A

Flashing red

See Note below.

Has one of the following
problems:

Is not seated properly
in the charger

Has dirty contacts

Is defective

Has one of the following
problems:

Is not seated properly
in the charger

Has dirty contacts

Is defective

N/A

Steady red

Is in the Discharge
portion of the Refresh
cycle

Is in the Discharge
portion of the Refresh
cycle

Is in the Discharge portion of
the Refresh cycle

Note:

If either the SPARE LED or the HANDSET LED is flashing red, both battery packs must be
removed from the charger to clear the flashing-red condition. Address the possible problems for
one battery pack at a time to determine whether one is bad.

Battery Pack

Battery-Pack Charge State

Average
Discharge
Time

Average
Recharge
Time

Average
Total Time

Standard Battery
Pack

Low charge (Battery icon is lit) 0.5 hours

1.25 hours

1.75 hours

Full charge

3 hours

1.25 hours

4.25 hours

Extended Battery
Pack

Low charge (Battery icon is lit) 0.5 hours

3.25 hours

3.75 hours

Full charge

8 hours

3.75 hours

11.75 hours

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