Lenovo ThinkPad 385ED User's Guide for TP 380XD, TP 385XD - Page 168
An Indicator Problem, Battery Problems
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Troubleshooting Charts An Indicator Problem Problem The battery status indicator does not go on even though a battery pack is installed in the computer. Action The over-current protection device inside the battery pack has been activated. Wait several hours and try again. If the indicator does not appear, replace the battery pack or have the computer serviced. Battery Problems Problem The battery pack cannot be fully charged in 3 hours by the power-off charging method. Your computer shuts down before the battery status indicator shows empty, -or- Your computer operates after the battery status indicator shows empty. The operating time for a fully charged battery pack is short. The computer does not operate with a fully charged battery pack. Action The battery pack might be over-discharged. Do the following: 1. Turn off the computer. 2. Make sure that the over-discharged battery pack is in the computer. 3. Connect the AC Adapter to the computer and let it charge. If the battery pack cannot be fully charged in 24 hours, use a new battery pack. Repeat discharging and charging the battery pack at least three times. Repeat discharging and charging of the battery pack three to six times. If you still have a problem, use a new battery pack. The over-current protective function in the battery pack might be activated. Turn off the computer for 1 minute to reset this function; then turn it back on again. 148 IBM ThinkPad 380XD/385XD User's Guide