Question about HP Compaq Presario Cq58 250Sa 15.6-Inch Laptop Intel Celeron B830 1.8GProcessor, 4Gb Ddr3 Ram, 750Gb Sata 5400Rpm Hdd, Intel Graphics, Dvd-Ram, Integrated Webcam, Windows 8
COMPAQ CQ58-261SA PICKS UP Charger beingconnected but does not charge battery. charger is ok -replacement also not charging battery - laptop brand new
It seems a few guys on here are missing the point, if you wish to check to see if you dc socket is faulty you need a good working charger and a multimeter set to DC volts.. Remove your battery and inside the battery compartment there are a series of brass looking contacts some are longer than others, the longer ones 90% of the time represent the Negative ( -V ) or Ground, Connect your black meter lead to one of the longer terminals and continue to probe your red lead on the other smaller terminals and see what reading you get.. if you see a small voltage thats dropping this normally means you are on the pins that connect to the output of the battery and as such capacitors on your main board are discharging (hence the voltage drop). if you see 3.3v on some pins this indicates the charging voltage and shows your dc socket is in fact working fine and that the problem is with your charging circuitry on the main board which is where i am at the moment, trying to find the relavant information to allow me to repair it, LOL hope this helps..
Posted on Sep 11, 2013
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Posted on Jan 02, 2017
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.
DC Jack diagnosis:
1. Test power adapter for output voltage. Bend the power cable in various directions while doing this to be sure that there is no broken conductors in the cable.
2. If power adapter is Ok, connect it & see if the power LED on the laptop will glow when you jiggle the power connector in various directions. If yes, then the DC jack might be loose or damaged, & need to be either re-soldered or replaced.
3. If not, then disassemble the laptop. Remove any components that attach to the laptop's motherboard first (e.g. battery, hard drive, RAM, wireless card, optical drive, ... etc.)
4. Next, remove the keyboard & the LCD screen.
5. Finally, unscrew all screws that hold the upper cover & lower cover together so that you could gain access to the motherboard.
6. Inspect the solder points connecting the DC jack to the motherboard. Make sure that none of them is loose. If any, re-solder them.
7. Inspect the center pin in the DC jack. Make sure that it is not broken or loose. If it is, then you might need to replace the DC jack.
8. When you are done, re-assemble back the laptop.
Posted on Sep 23, 2010
Damaged battery or internal circuit problem it is hard to to say. Bring your laptop to a repair shop. They can check the battery and tell you what the problem is.
Posted on Dec 04, 2008
If you can determine that it is not the battery just going bad, then most likely it is a problem with the motherboard. I actually have this same problem, and have not been able to find a quick fix.
HP has a battery tester tool. If you are able to use this, then you are one step ahead of where my HP laptop is. I tried running this and it insisted that I did not have a battery installed, or that it was dead. If you have this same problem, then it looks like it might be time for a new motherboard.
In anycase, it might also be worth the time to try draining the battery completely and attempting to charge it back up. According to a few other sources, the laptop can sometimes get confused and think that a full battery is calibrated to be a low battery.
Posted on Jul 05, 2009
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