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Xp shows battery power unknown laptop

  • Battery
  • Laptops
  • Power
  • Windows XP
Last response: in Laptop Tech Support
February 3, 2011 1:15:38 AM


I replaced my laptop batterywith one purchased on the net.When I put the battery into the computer and went into power management it say battery charge unknown. I put back my old battery and it recognises it.The reason I replaced the battery was the old one was on tis way out and it was not taking a full charge even after recycled 3 times.

More about : shows battery power unknown laptop

a b D Laptop
February 14, 2011 9:43:10 PM

The circuitry inside the battery has to communicate with the system to report it's status. Non-OEM batteries do not follow that and therefore the charge is not communicated correctly.
Recycling the Li-Ion batteries is not a good idea. these batteries do not have memory, but also do not tolerate well complete discharges. When that happens, they lose a few more cells, effectively reducing the battery's capacity every time. It works on Ni-Cd or Ni-Mh, but not Li-Ion.