Having problems with your HP Compaq Presario C502US Notebook ?
3V laptop Battery
\015 I'm wondering what the small, round 3V Mitsubishi battery that is inside my laptop is used for? Please let me know. Thanks.\015
That's the CMOS backup battery. Some of the motherboard settings (the system clock and date, for instance) are stored in CMOS memory, and some power is required to keep the contents alive. If the battery goes dead (which it will, someday), you will get error messages when the computer starts up. All you need to do is pop in a new cell and set your clock again.
It keeps your bios alive while your comp is turned off your bios is what tells your pc how to start
Repair Help & Product Troubleshooting for HP Compaq Presario C502US Notebook
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.
Suggested Questions/Answers :
Laptop crashes shortly after boot, power light rapidly blinks red.
Its late, so just to make sure I'm not brain-dead basically your laptop runs fine as long as its powered by the AC adaptor but dies fairly quickly while running via battery. \015\012\015\012This is very typical of a battery that will no longer hold a ... Medion (40010998)
I have a Toshiba A305 S6916 Laptop that will not charge the battery. I bought a new battery and it still will not charge.. Any solutions or what to look at?
Toshiba makes brilliantly fast laptops for a low cost, but they are also\015\012 more fragile than other laptops in my opinion and easily damaged. But while I personally believe they have quality issues, I also like getting \015\012top of the line eq ... PC Laptops
Toshiba M115 S3094 Battery Probelm
I would buy a new aftermarket battery from ebay..cost around, at the most $20..and try that...and a warning about updating the bios...be VERY careful doing this..make 100% sure your ac adapter, and power source is working 100%. If your in the mid ... HP Pavilion dv6000z Notebook
Dell Laptop Battery Charer
Generally the LI ion material is nucleus in the laptop battery inside, It with suited manage power supply electrocircuit make up of laptop battery. It’s encase in the laptop inside charge and u ... Dell Inspiron E1505 Notebook
My laptop lenovo 3000 N100 battery has a problem.. therefore i purchased a new battery but the problem with this battery is that when i use the battery it runs the laptop for 10 -15 mins and then with a click sound cuts of the battery supply. m i having aproblem with the battery or it is ainternal circuit problem.
My Dell laptop has a power problem.\015\012 ... Lenovo 3000 N100 Notebook
I AM STUDENT OF MBA NEW DELHI AND I HAVE REGISTERED MY COMPAINT IN HP CENTRE BUT THEREIS NO ACTION TAKEN BY THE HP SERVICE CENTRE AND RIGHT NOW I AM IN JAIPUR AND I WANT TO CHANGE MY BATTERY PROBLEM IN JAIPUR SO PLEASE GIVE ME ANY PROPER SOLUTION TO CHANGE IT
The Computer Zone(9828224899,9829081513)Authorised Laptop Service centre jaipur dell,lenovo , sony , acer, asus , hcl ,HP , Compaq, gigabyte, BenqINTEL PRODUCTS,COMPUTER PARTS,LAPTOP ACCESSERIES, PERIPHERALS, NETWORKING,AND UPGRADAT ... HP Compaq Presario F750US
Cannot get the laptop to boot up with battery power
There are allegedly at least ten million dodgy lithium ion batteries out there and subject to recall. Claim on your guarantee. \015\012 Recently I was pestered into getting a cheap used laptop for a yachtsman. He wanted it to run a ch ... HP 530 Notebook PC
My inspiron mini 10 wont turn on and it is plugged in. How do I turn it on? the power key does nothing
If your laptop won't turn on, you could have any number of problems. The problem might be a genuine power issue derived from either battery failure or simply a loose AC adapter. Conversely, it may only appear to be a power failure, and the problem ma ... PC Laptops
Care for your laptop battery to get the maximum life out of it.
There is actually a battery recall for some of the batteries used in the DV9000. You can goto the link provided to see if you qualify. You will need your serial number, and the battery barcode identifier.\015\012\015\012 ... HP Pavilion dv9000z Notebook
No display sir i have hp pavilion dv 2000 laptop. when i swithced on the machine there is no display. but some LED is blinking except HDD LED. what is the main cause of this problem. how can repair this problem.please help me sir
Check your power cord/PSU and all connections between the laptop and the wall!This may also be a sleep/hibernate problem, from ACPI control. The "other" blinking LED makes me suspect that as the MOST likely cause!1 To test thi ... PC Laptops
Laptop not charging the battery
If your internal BIOS battery is flat it would not cause such malfunction.That would give us some info if you could try the other identical laptops charger on your laptop to find out exactly what is wrong.If your laptop wont take the charge even fro ... PC Laptops
My dell Inspiron 1501 unable to charge the battery.
How old is your laptop? If you have had your laptop a while now it is very possible that the battery on your laptop is becoming weak, or is about to go out.The first thing i would do is remove the battery.. Make sure that their i's ... Dell Latitude D600 Notebook
LG M1 Express Dual Laptop
\015\012Does it go back in and then pop back out as if you pressed the button, or is there something mechanically wrong that prevents you from pushing the drive in?\015\012Laptop batteries are notorious for ... LG X-Note LM50 Notebook
Advent 7016 (AKA Gericom Blockbuster 251S)main
It was the BATTERY all along !!!!! Incidentally the new battery bought mail order from China was no good as it would not boot-up the laptop. The curious thing was that if the laptop was booted-up using mains power, the Chinese battery would then la ... Compaq Armada M700 Notebook
HP zv6000 battery problem
I am having the same problem when the power cord is plugged directly to the computer - power light flashes - once battery is dead so is the computer. I have a docking station that plugs into the big port on the right side - that still works and does ... HP Pavillion ZV6000 Athlon 64 3500+ 15.4in WideScreen w/ 512MB/80GB/DVDRW/Flash Slot (PCLHCA6435512WWD) PC Notebook
My Dell 1501 laptop turns off as soon as the charger is connected
Sounds like you have a multiple problem going on here honestly. If you have a constant light on your charger even when its completely disconnected from the wall outlet then your charger is bad for sure, cause the light shouldn't come on unless the ch ... Dell Inspiron 1501 Notebook
My Hp Pavilion Laptop says: 0% available (plugged in, charging)
Unfortunatelly, not much you can do!\015\012Most likely it is up to the battery.\015\012Such things are not unusual. My friends laptop battery died at once (just like yours) in about two weeks after he bought it. Fortunately, it was ... HP Pavilion dv6000z Notebook
I have a dell 4600 that I got from my daughter . which I had to re-install and It has a password in the bios for the set up and my daughter dont know
\015\012 \015\012Hi katmbutts;\015\012 \015\012 \015\012Before attempting to bypass the BIOS password on a computer, please take a minute to contact the hardware ... Dell Dimension 4600 PC Desktop
Acer Aspire 3003LMi won't charge or run on new 4400mAH battery
Here are some great source where will will get any kinds of HP,ACER,DELL and COMPAQ laptop Solution and any kinds of Driver download.» Hp Laptop' ... PC Laptops
How to replace the cosmos battery on a dell latitude cpx laptop
Replacing the CMOS battery on a laptop is by no means an easy task...\015\012\015\012On a regular desktop computer it would only involve taking off a panel and replacing a flat button-cell battery.\015\012\015\012A laptop, how ... HP Pavilion ze4300 Notebook
Laptop not powering - HP6710b 2.1GHz 15.4 160GB 5400 PC Notebook
Sir,TAKE OUT BATTERY, REMOVE MAINS SUPPLY, HOLD POWER BUTTON DOWN FOR 30SECS PUT POWER SUPPLY IN ONLY DO NOT PUT IN BATTERY TURN ON LAPTOP NOWPUT IN BATTERY\015\012AC power adapter\015\012How the AC adapter worksThe most commo ... HP6710b 2.1GHz 15.4 160GB 5400 PC Notebook
My Inspiron e1505 does not charge the replacement battery Gd761
Computer AC / DC cable is bad not allowing the computer battery to \015\012charge\015\012 Verify\015\012that the AC and or DC cable is not bad by testing the computer only\015\012with the power plug connected and the battery out of the lap ... Dell PC Laptops
Laptop battery problem
I think that your battery is bad or you have a board connection issue.This could be helping you also (related issues):\015\012\015\0121.- Computer AC / DC cable is bad not allowing the computer battery to charge \ ... Compaq Presario 700 470024-192 Notebook
Toshiba Satellite Laptop Power Failure (A105-S1013 System Unit)
How handy are you with a digital multimeter? If the laptop is still disassembled, find the solder connections on the motherboard where the mini power cable enters the board from the jack. Plug the AC adapter in. Check to make sure you have the pro ... Toshiba Satellite A100-S8111TD Notebook
Laptop not working on battery, i have changed the battery
There are several simple indicator to determine the source of the problem. There are 4 major components involved, the laptop circuitry, contact terminal, AC adapter and battery. Every laptop has a LED light indicating if it is in the charging mode (w ... Acer Aspire 5315 Notebook