Service Manual
Page 143
...adapter. Check timeout settings in Power in AC adapter or insert charged battery Check battery and contacts. Run HP Battery Optimizer from any nearby heat source. Notebook beeps repeatedly when battery is connected properly and battery installed properly. Turns off immediately after a year or ... settings in use. Battery. If available, try another battery if available. Symptom Notebook has short operating time when on battery power, use Power Options in Control Panel to select Portable/Laptop power scheme. Some PCMCIA cards draw power even while not in BIOS Setup. ...
...adapter. Check timeout settings in Power in AC adapter or insert charged battery Check battery and contacts. Run HP Battery Optimizer from any nearby heat source. Notebook beeps repeatedly when battery is connected properly and battery installed properly. Turns off immediately after a year or ... settings in use. Battery. If available, try another battery if available. Symptom Notebook has short operating time when on battery power, use Power Options in Control Panel to select Portable/Laptop power scheme. Some PCMCIA cards draw power even while not in BIOS Setup. ...