Lenovo A10 Lenovo User Manual download pdf (Page 26)

Lenovo IdeaPad A10 Hardware Maintenance Manual

Perform operational charging. If the battery status indicator or icon does not

light on, remove the battery pack and let it return to room temperature. Reinstall

the battery pack. If the charge indicator or icon is still off, replace the battery

pack.

If the charge indicator still does not light on, replace the system board. Then

reinstall the battery pack. If it is still not charged, go to the next section.

Checking the battery pack

Battery charging does not start until the Power Meter shows that less than 95%

of the total power remains; under this condition the battery pack can charge to

100% of its capacity. This protects the battery pack from being overcharged or

from having a shortened life.

Note: If the battery pack becomes hot, it may not be able to be charged. Remove

it from the computer and leave it at room temperature for a while. After it cools

down, reinstall and recharge it.

To check the battery pack, follow the steps below:

1. Turn off the computer.

2. Remove the battery pack and measure the voltage between battery terminals

1 (+) and 7 (-). See the following figure:

3. If the voltage is less than +11.0 V DC, the battery pack has been discharged.

Note: Recharging will be continued for at least 3 hours, even though the

indicator does not light on.

If the voltage is still less than +11.0 V DC after recharging, replace the battery.

4. If the voltage is more than +11.0 V DC, measure the resistance between

battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.

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

correct, replace the system board.

1(+)

2(+)

6(-)

7(-)

Terminal

1 +0 to +14

7 Ground (-)

Voltage (V DC)

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 65 66

No comments

Lenovo A10 Lenovo User Manual Page 26