HP Pavilion dv4-1287cl Entertainment Notebook PC battery

SOURCE: I Need all the drivers for HP Pavilion dv5000ea Notebook PC for vista

Here is a link to HP's offical downloads for your PC.

Click HERE

SOURCE: hp laptop shuts itself down

Get a can of air and really blow the intake & exaust ports and ALL fins. A laptop cooler really helps with this problem but, you have to blow them out too.
Google HDD thermometer and download a temperature indicator. It will show you when things are starting to heat up. Mine runs between 25-33 degrees celcius and will shut down randomly around 34 or above.

Lee Hodgson

• 4810 Answers
• Posted on Sep 17, 2009

SOURCE: need to replace keyboard in HP Pavilion dv6626us

Hi,
Turn the computer off and close the computer lid.
Remove the battery and the AC power supply.

1st we need to remove the switch cover or keyboard bezel. This is plastic strip that runs above the keyboard.

Turn the computer upside down with the front panel towards you.
Remove the three Phillips screws that secure the switch cover to the computer.

Turn the computer display-side up with the front toward you.
Open the computer as far as possible.
Lift the rear edge of the switch cover and swing it forward until it rests on the keyboard.

Release the zero insertion force (ZIF) connector to which the LED board cable is connected and disconnect the cable from the LED board.
Remove the switch cover.

Now remove the panel directly above the battery compartment and remove the 2 keyboard screws there and another 2 screw in the battery compartment (they should me marked with icons of keyboards)

Turn the computer display-side up with the front panel towards you.
Open the computer as far as possible.
Lift the rear edge of the keyboard until it rests at an angle.
Slide the keyboard back to disengage the tabs on the front edge of the keyboard from the top cover.
Swing the keyboard forward until it rests on the palm rest.

Release the ZIF connector to which the keyboard cable is connected and disconnect the keyboard cable from the system board.

Remove the keyboard.

Just reverse the procedures to replace everything.

Good luck.

SOURCE: My grandson has a hp pavilion dv4 2145 dx

First of all, you need to make sure your power adapter is providing enough power to both run the laptop & charge the battery. A very good way to do this is to compare your laptop voltage & ampere requirements (written on a sticker on the bottom of the laptop) with the voltage & ampere ratings of the power adapter. Voltages should be the same, or the power adapter's voltage about up to 0.5 volts more than the laptop's voltage rating. Amperage of the power adapter should be at least equal to or greater than the laptop's rating. It should never be less than the laptop's rating, or else the power adapter will be providing insufficient amperes to charge the battery. Of course, the power adapter's nominal amperage might be ok, but it degraded on usage. You can verify this by testing using a good or new power adapter.
If the battery did not charge using the new power adapter, take the battery off the laptop, & using a dry tooth brush, scrub in between the fins of the battery connector on the motherboard & on the battery it self, then put the battery back into the laptop & try again.
If this still did not resolve the problem, then the battery itself could be bad. Try it on another laptop, or try a good or new battery in your laptop.
If this did not work, there might be a possibility that the charging circuitry on the laptop's motherboard is defective & needs servicing. In order to do this, the laptop needs to be disassembled & the motherboard checked for defective/burned out components in the area near the DC jack. Any defective/burned out components found should be replaced, or you might need to replace the laptop's motherboard altogether