Lenovo ThinkPad 365E-ED ThinkPad 365, SelectaDock I - Hardware Maintenance Man - Page 49
Checking Operational Charging, Checking the Battery Pack, 2 V dc, the battery pack
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4. Measure the output voltage of the AC Adapter. 5. If the voltage is still not correct, replace the AC Adapter. Note: An audible noise from the AC Adapter does not always indicate a defective adapter. Checking Operational Charging: To check operational charging, use a discharged battery pack or a battery pack that shows an amber battery status indicator when it is installed in the computer. Perform operational charging. If the battery status indicator turns orange and the battery charging indicator turns green within two minutes, replace the AC Adapter. Checking the Battery Pack: Battery charging will not start until the Fuel-Gauge shows that less than 90% of the total power remains; with this condition the battery pack will charge to 100% of its capacity. This protects the battery pack from being over-charged or having a shortened life. Before you perform the following procedure, be sure you have the correct battery pack for this model. 1. Power-off the computer. 2. Remove the battery pack and measure the voltage between battery terminals 2 (+) and 6 (−). See the following figure. 3. If the voltage is less than +7.2 V dc, the battery pack has been discharged or is defective. Recharge the battery. If the recharging does not work, go to Step 5 on page 38 to check the charging circuit. If the voltage is still less than +7.2 V dc after the recharging, replace the battery. 4. If the voltage is more than +7.2 V dc, measure the resistance between battery terminals 4 and 6. The resistance must be 4K ohms to 30K ohms. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the DC/DC card. ThinkPad 365 (2625) 37