Odd battery issue

sorry youre wrong, the AC pack is 19vdc (unregulated ) so 19.5 to 20.5 is par, ok
first off learn that the power pack is 2 things,
one its power, if 19vdc is on the 2 pins, at all times plugged into the wall AC jack and the PC at the same time the power is ok
now feature, #1
the pack also has this other odd feature.(power fail logic)
(and can fail and do just what you see)
first off the pack needs to be 65watts or 100 and for HP computers
not some universal thing, off fleabay. (for sure with a voltage switch on the pack is NO GOOD)( I cant see yours so.... yah,...)
that is because of the power down logic wire on the wrong packs is wrong. or missing.

the Pack AC if you unplug it to from the wall signals the PC
in an early fashion to switch to battery power. so there is no loss of power, for even an instant.,
to prove and learn this magic feature, unplugging the DC cable first on a LAPTOP will make it crash, on many laptops.

this PC is now 6 years old, not too old but sure is old in the world of batteries.

The causes are ( cheap to expensive) easy no? see 5 first.sorry
1: the main huge battery is bad. this is 99% failure rated device,
batteries fail easy, and often so why not own 2 like me , so if on say vacation im not stuck trying to find a battery in a panic
spend $15 now and not $100 in a panic at say Tahiti.
learn that that battery can short, and if it does (fire can happen)
but if it shorts it will overload the charge chip and its logic goes nuts.
so that is way both battery in the PC are always suspected.
it runs AC, just do that until a new set of batteries are found,
15 for big, $2 for coin.( 50% chance on coin bad)


2: the power pack is bad, as i told you above. the power logic signals are dead. but DC side ok. or WRONG PACK.

3: the mother board power jack is bad, on mine it is $5 cable that goes inside PC, laptop , but others its a hard soldered jack to the MOBO if bad is not easy to fix. with that. I have some very expensive tools to fix the hard ones and is still not easy.
we heat gun it first, then clean the holes, (hard) and put on a new jack easy if one can get this far....


4: last is the charge chip on the mother board is bad so mobo is bad and $100 up for used good one.
5: Ill add this too, as all PC over 7 years old the coin cell goes bad.
all do, this, replace it now, for $2, if the voltage from this cell drops below 2.9v, much the BIOS goes nuts. and any thing can happen with NUTS. (the NVRAM scrambles and causes endless bad symptoms and even a dead PC, or other logic failures and for sure lost of time of day or Mm/dd/yyyy, lost.


if that is too hard here is a guess list.
1: new coin,
2: new big battery
3: new correct wattage HP power pack.
4: new mobo ($$$$$)

$2, $15, $15, $100-150
your choices.

It could possibly be the power jack that is inside the computer. This item is typically soldered onto the motherboard and it is what your ac adapter plugs into.

That is somewhat odd. I don't think that I've personally heard of that happening before. Question: What is the date/time on your computer? I ask this as I believe that your issue may have to do with the little battery on the motherboard.

If the date/time on your computer gets reset every time you turn on the machine then you'll want to replace the little battery on the motherboard.

Have you seen inside a laptop battery, it's not just a battery. It also has control circuitry inside, could be that. Not usually repairble but you can do some makes of battery. See here:Circuit.
Personally I would buy a new battery.

It sounds like you have a loose connection or wire somewhere, becuase you stated it started happening after you hit a bump which the jolt would cause movement in a component or wire causing some type of short or mis-connection to happen. I would check all wires, cables for loose or corroded connections, loose ground wires, especially battery and starter connections and tighten accordingly.

it is possible that the battery has been reset at a low level so it won't hold the charge. You may need to have it emptyed and then recharge it for the max time or you need to replace the battery.

One of the things is usage does drop the scale each time you use the battery without having the power supply unit plugged in. This is common for it to drop. The thing to worry about is if it does not charge back up to 100% at all. The ideal way to not ruin a battery is to let it go completely down to about 10% then charge it to 100% and go that route always charging will over time decrease battery life. So there is nothing that you are doing wrong or the battery going bad not at all this is normal. It will discharge normally without any usage especially over a two week period of time not being charged and just sitting there. John

Hi,
Welcome to FixYa! The problem that you have is about the Operating system and there are two ways of fixing the problem which is by using the Recovery Disc or using the One Key Recovery Button. Please follow the steps below for you to be able to fix the problem. If everything is done and its still the same, most probably, the problem is with the Harddrive.
For One Key Recovery:
1. Turn off the computer.


2. Press the little button near the power button, it usually do have a drawing of an icon that looks like a horse shoe or a headset.


3. There will be a window that will appear which do have three option, One Key Antivirus, One Key Recovery and System Setup. Choose One key Recovery.


4. There will be another window that will appear which do have two option, Restore from initial backup and Restore from user backup,Choose Restore from initial back up


5. It will asked you if you want to continue, Just click on OK or YES.


6. Once done, Reboot the computer.


For Recovery Disc,


1. Insert the disc inside the drive.


2. Turn off the computer then turn it back on and keep on tapping F12


3. There will a window that will appear which do have three options, HDD,ODD/DVD/CD, and NAT, choose ODD/DVD/CD


4. It will asked you to press any key immediately, you will need to press any key immediately so that it will boot from ODD.


5. It will asked you to choose a partition, choose Disc 0 partition 1


6. Reboot computer once done.


I hope this information will be helpful. Thank you for using FixYa...

I had a similar problem on an old bronco that I had. I don't know which one fixed it but I replaced the battery leads and made sure the ground was connected well, and replaced the computer( or brain). You should be able to find the brain in a junkyard and it SHOULD be mounted on the drivers side inner fender(under the hood). Hope this helps.

You might want to check the CPU fan for dust and re-seat the RAM. I sounds more like a heat issue.