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I have a compaq evo n400c. New Battery does not recharge.

I have a compaq evo n400c. just bought a new battery cause the old one was not charging at all. However it was working with ac power. now it is showing battery life at 50% and i pluged the ac adapter and it is not showing no indicator of charging and shows to be running on ac power. The charging light does not come on no matter what i do. Tell me if it is normal and when would the recharging resume.

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  • ERIC BAKER May 11, 2010

    Have you tried going into to your BIOS to calibrate the new battery?

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1 Answer

Bought new battery for ev0610, charged it for 24 hours but still no power?


restart your laptop press F10 to access the bios setup page. Now scroll to battery calibration tab follow these steps
1 Recharge
2- Discharge
3- Recharge

Your Done!

Feb 07, 2010 | HP Compaq Evo n610c Notebook

1 Answer

Battery does not charge


Will the old battery (that you are replacing) charge up at all? If the old battery charges but the new battery will not, then it's likely a bad replacement battery.

To rule out the possibility of a corrupted battery meter inside of windows, you may wish to leave the laptop on battery power only, until it dies. A 5% charge will usually only grant you about 20 minutes of laptop life maximum. Since you left it charging all night, you should get a few hours of life before it dies. If you get a few hours of life, the battery meter software is corrupted.

Most likely though, the replacement battery is bad.


Sep 02, 2009 | HP Compaq Evo n610c Notebook

1 Answer

The new battery will not calibrate


do you know for a fact that its the right battery? if you dont then its most likely not and i would recommend going to batteries-plus.

Aug 24, 2009 | Compaq Evo Notebook N400c

1 Answer

Time and date wont store


A battery would fix this but it is the battery on the motherboard that you need. How old is this computer?

Dec 30, 2008 | HP Compaq Evo Notebook N600c

1 Answer

BATTERY is charged, but will not work without being plugged in


Your battery is old and worn out, even though it indicates as fully charged. The battery capacity is practically zero. Rechargeable batteries have a finite number of charge and discharge cycles.

You need to buy a new battery if you wish to use the laptop without connecting to the mains.

Dec 01, 2008 | HP Compaq Evo n610c Notebook

3 Answers

I have a compaq evo n400c needs a power on password key


If you forgot your password then you have to take your laptop to hp service centre. Because the laptop need to be disassembled before one can reset the poweron password.

Nov 23, 2008 | Compaq Evo Notebook N400c

1 Answer

Battery wont work


The battery is dead and it won't charge or hold its charge (all rechargeable batteries have a finite number of charge and discharge cycles). You need to buy a new battery, or just use the laptop connected to the mains supply.

Oct 29, 2008 | HP Compaq Evo Notebook N600c

2 Answers

Compaq EVO N400C PC Notebook Problem brought new battery! fully charged all night! turn laptop on within one second the thing turns off! AC works fine! new battery! old laptop! what can i do, please help?


your laptop should function even without a battery. Remove the battery you just bought and see if only with AC adapter, would your laptop turn on?

If not, then try removing the memory and see using a pencil eraser, clean the contacts of the memory and see if you can power your laptop with only ac

Apr 05, 2008 | Compaq Evo N400C Notebook

1 Answer

Evo n400c


Did you charge it for up to 8 hours?

Caring for your Compaq Evo N400c Laptop Battery You can improve the life of your Compaq Evo N400c Laptop Battery by doing the following:
When you first receive your laptop battery charge it fully for at least 6-8 hours and then discharge the battery fully by using your laptop unplugged from the mains until it runs down completely.

Repeat this 3 times to ensure your Compaq Evo N400c Laptop Battery will give you the maximum performance.

If you regularly use your Compaq Evo N400c Laptop on mains power for extended periods, removing the battery from your Laptop during these periods will extend the usable life of your laptop battery.

Apr 05, 2008 | Compaq Evo N400C Notebook

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