Checkout guide

Perform operational charging. If the battery sta indicator or icon does not turn on, remove the and let it return to room temperature. Reinstall pack. If the charge indicator or icon still doe replace the battery pack.

If the charge indicator still does not turn on, system board. Then reinstall the battery pack. I reinstalled battery pack is not charged, go to section.

Checking

the

battery pack:

Battery charging

does

not

start until the

Fuel Gauge shows that

95% of the total power remains; under this condit battery pack can charge to 100% of its capacit protects the battery pack from being overcharge

having

a

shortened

life.

 

 

 

 

Note:

The

battery

pack might

not

be able

to

ch

 

it

is hot. In that case, remove it

from

 

and

leave it at room temperature for

a

w

 

it

cools down, reinstall

and

recharge

it.

 

Do the following:

1.Power off the computer.

2.Remove the battery pack and measure the v between battery terminals+) and14).( (See the following figure:

Terminal

 

 

Voltage

(V dc)

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

+ 0

+to 12.6

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

Ground ()

 

 

 

 

 

 

 

 

 

 

 

3.

If

the

voltage is+11less.0 V thandc,

the

battery

 

has

been

discharged. Recharge

the

battery

Note: It takes at least 3 hours to recharg battery pack.

If the voltage is still+11.less0V dcthan after recharging, replace the battery.

4.If the voltage is+11more.0 Vthandc, measure the resistance between battery terminals 3 and

resistance must be 4 to 30 K ohm.

If the resistance is not correct, replace pack. If the resistance is correct, replace board.

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Image 15
IBM 600X (MT 2646) manual Battery pack