Problems:
The typical problem is that you have been using a laptop on the battery for several months and then you find that it doesn't charge as long as it used to be.And several months later, it only last for one hours.
Why do come the problems?
There are some reasons :
There is an issue with the mains supply.
The AC adaptor is not the correct type or is faulty.
The battery requires re-calibration.
The battery is past its useful life,possibly because it has been kept at a high temperature for extended periods.
The battery,system or charging circuit/AC adaptor is faulty.
There are some ways to solve it .
It is essential to carry out the following procedures in the order listed.
1. Check supply: 1.Use a known working AC mains lead and AC adaptor of the same type
2.Connect the AC adaptor to a mains wall socket that you know is working (e.g. if you normally charge from an RM NoteBus,remove the adaptor from the RM NoteBus and use a wall socket instead).
3.Switch the system on and check that the power icon at the bottom right of the system has a 'mains plug'symbol and that it says On AC Power or Charging when the pointer hovers over it.
2. Check the Power Scheme configuration
You have to go to Control Panel to check the configuration of the Power Scheme of a system,Power Options and check that you have not set the 'Running on batteries'settings to a short time (e.g.30 minutes).This would cause the system to enter standby mode after being idle for 30 minutes. likely,if you have a system hibernates option check that it's not set for a short time .This may give the appearance that the battery is not lasting very long,but in fact the system is simply switching off after a set period of idleness.
3. Recalibrate the Smart Battery
first , you have to check that the system is on AC power ,second,
switch off the system, and then leave the system overnight (eight hours) to charge.after this, you will switch on the system and check that the system is still on AC power and then In Control Panel,Performance and Maintenance,Power Options,change the Power schemes to Always On. Then change all settings under 'Running on batteries'to Never and click OK.
the last five steps:
1.Click the Power Meter tab,and check that the battery is at 100%.
2.Now remove the AC adaptor plug and switch off the AC adaptor power at the mains supply.
3.Time how long the system remains powered. You can use a utility to log the time to the hard disk at regular intervals (see Other Useful Articles below).
4.After the system has switched itself off (usually by a self-controlled Shutdown),connect the AC adaptor again and switch on the power to recharge the battery.
5.Leave for eight hours to fully recharge.
4. Try another battery
Here are some batteries for you :
Dell Inspiron 630m Battery Replacementor
laptop batteries