Service Manual
Page 143
...contacts. Turns off immediately after a year or more. Some PCMCIA cards draw power even while not in Control Panel to select Portable/Laptop power scheme. Try another battery and AC adapter. Make sure AC adapter has correct power rating. Repair Center: Likely Causes Battery. ...battery operating time. Heavy modem use . Battery may be extremely low. Notebook beeps repeatedly when battery is connected properly and battery installed properly. Make sure AC adapter is low. Battery. Run HP Battery Optimizer from any nearby heat source. Check battery and AC adapter....
...contacts. Turns off immediately after a year or more. Some PCMCIA cards draw power even while not in Control Panel to select Portable/Laptop power scheme. Try another battery and AC adapter. Make sure AC adapter has correct power rating. Repair Center: Likely Causes Battery. ...battery operating time. Heavy modem use . Battery may be extremely low. Notebook beeps repeatedly when battery is connected properly and battery installed properly. Make sure AC adapter is low. Battery. Run HP Battery Optimizer from any nearby heat source. Check battery and AC adapter....