what does it mean when my laptop is hot and battery dies

January 27, 2012 at 11:26:29
Specs: Windows 7
This seems to be a new problem. My battery normally lasts 8 hrs, and now it barely lasting 1. The bottom is very hot too. I tried using a cooling fan, but it doesn't really seem to be helping,

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January 27, 2012 at 11:33:04
Laptop main batteries usually work as they should for a year or so, then they begin to rapidly deteriorate. From what I've seen, by two years they cannot be charged to anywhere near their full capacity, and it gets worse after that.

They often develop internal shorts when they are older. If the battery gets HOT rather than just warm after you have attempted to charge it for at least a half hour, or after you have been using the laptop for a while with the AC adapter plugged in, it's definitely internally shorted and you must replace it. Internally shorted batteries getting too hot have been known to cause the laptop to catch on fire.

The only solution is to replace the battery.

You DO NOT have to buy the official brand name's battery. There are lots of clones on the web that have the same one year warranty that cost a lot less. Search the web with your laptop model or the part number of the battery to find compatible replacement batteries.

In many cases for HP and Compaq computers you can get a battery that has more cells / a higher capacity and runs the computer twice as long as the original battery on the battery alone - the only difference is it sticks out of the case a bit, and the back of the laptop rests on the battery instead of on the case. If one is available for your model, it's usually listed in the parts for your model here:
Search using the part number for that battery if you like.

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January 27, 2012 at 12:12:01
Sounds like the battery is being drained by the cooling fan. Is the fan making more noise than normal?

Try blowing out the vents on the bottom using either canned air from the office supply, or air from a compressor. No need to take anything apart.

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January 27, 2012 at 12:22:49
Most of that is true (#1 above) BUT...
One year is NOT too long for a laptop battery so you may want to look elsewhere first.
IF you have an infection or suddenly many programs running in the background (major CPU and memory usage) then that could be the cause of the short battery life as well as the excess heat.. Restart in Safe mode with Networking (power cord plugged in) and run Malwarebytes. Delete all it finds, update your antivirus program and run that also. Clean out any it finds as well. Run msconfig, go to Start Tab and uncheck all except Microsoft and your antivirus program. Apply and restart the machine (normal mode). If you are using Norton or McAfee consider replacing with something better and lighter on your system resources like Avast or MS Security Essentials.
Then look at this:
Let us know how it goes.

You have to be a little bit crazy to keep you from going insane.

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January 28, 2012 at 08:29:45
Bad battery? Bad computer?

A Pit Bull is like a gun you can pet. And there is no safety on it.

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January 28, 2012 at 15:51:29
Unless you have damaged the laptop by dropping it or spilling liquid on it, you probably have an internally shorted battery, whatever age it is, and that's why it's getting hot. Replace it !

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