Tip & How-To about Computers & Internet

How to keep your Laptop battery healthy and last long

Always remember to unplug the power main supply to the laptop when your laptop battery is full (100%) use unless your laptop say LOW battery only then power up the main supply in this way you can extend your laptops battery life.

Do not keep your laptop connected to main supply and work for longer time.

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why my laptop runs slow when i disconnect the power cable although the battery is fully charged. After reconnecting the power cable the laptop runs normally at good speed, why? is there any problem with the battery


When you run on the battery the laptop reduces or stops certain things to conserve battery power. Haven't you ever noticed that once you remove the power cord the screen goes dimmer. The laptop is conserving energy and that will cause it to perform at a slower pace or speed.

Unplugged laptops generally go into power saving mode. They will slow the CPU speed, stop the hard drive more often and lower the brightness of the screen (big power savings) all that good effort is lost when you remember that the power supply you use to charge the battery is making more heat . When you reattach it to the power adapter it goes back to Full Power Mode, and recharges the battery as well.

Here's a rule of thumb that I always follow. If i'm near an electrical outlet, I use the power cord. I never use my battery unless there is no electrical outlet near by. This way my battery is always charged for times that I really need to use it.

May 18, 2012 | Compaq Computers & Internet

1 Answer

Regarding back up of battery


LOL, Nope, there is no problem with the battery. That's the way it's supposed to work.

When you run on the battery the laptop reduces or stops certain things to conserve battery power. Haven't you ever noticed that once you remove the power cord the screen goes dimmer. The laptop is conserving energy and that will cause it to perform at a slower pace or speed.

Unplugged laptops generally go into power saving mode. They will slow the CPU speed, stop the hard drive more often and lower the brightness of the screen (big power savings) all that good effort is lost when you remember that the power supply you use to charge the battery is making more heat . When you reattach it to the power adapter it goes back to Full Power Mode, and recharges the battery as well.

Here's a rule of thumb that I always follow. If i'm near an electrical outlet, I use the power cord. I never use my battery unless there is no electrical outlet near by. This way my battery is always charged for times that I really need to use it.

May 18, 2012 | Compaq Computers & Internet

1 Answer

acer aspire 5935g battery problem


Many users do not use their notebook/notebook batteries correctly. The battery in a laptop/notebook/netbook is a rechargeable battery, like the battery in a Cellphone, a Digital Camera an eReader or an MP3/MP4/MP5 Player. This type of battery needs to both charge and discharge, if it is to perform to its maximum capacity and have a full, long life.

You would never dream of using a Cellphone, Digital Camera, an eReader or an MP3/MP4/MP5 Player only with the devices permanently connected to the mains electricity, because they are all devices that are designed to be used while the user is moving around whether indoors or outdoors, powered by their rechargeable batteries. the batteries of such devices are only recharged when the charge in their cells is depleted and then only for as long as it takes to restore full charge to them.

As with the other devices mentioned, a laptop/notebook/netbook's battery is designed for mobile use and the user should charge it to 100% full and then stop charging it to then use the device on battery power alone, until the battery is low on power, when the recharging cycle can then be repeated.

A notebook/netbook has more flexibility than the other devices mentioned because, unlike the other devices, it can also be powered directly from the mains electricity, without the battery installed.

If your laptop/notebook/netbook is mainly used away from the home or office, it is fine to leave the battery permanently installed. If, however, it is mainly used indoors at home or at work and always or almost always on exactly the same desk or table, then it makes little sense to use it either on battery power alone or with the battery permanently installed.

Charge the battery up to full charge and then disconnect the battery from the device and keep it safely for when you next need to use the laptop/notebook/netbook on the move (if the battery is stored for long periods it may require additional recharging to both maintain the battery's condition and to keep it fully charged because low level power dissipation takes place in a disconnected battery). Then connect the device to the mains electricity without the battery and continue using it like that.

If the laptop/notebook/netbook is mainly used in a single permanent indoor location, then charging has to stop when the battery has reached 100% full charge and should only be resumed when the device gives a low battery charge warning.

It is also important not to let rechargeable batteries drain completely by ignoring the low battery charge warming and continuing to use the device until the battery runs out of charge and the device powers down suddenly. Sudden shutdowns like this are neither good for the battery nor the device and can shorten the lifespan of both.

Continuing to charge any rechargeable battery when it has already been fully charged damages and shortens the life of the battery. It can even damage the internal Power Management System of the device if done over a sustained period of time and/or for prolonged periods of time.

When your notebook only shows 75% as the maximum charging level, this is an indication that one or more (probably two) of the individual cells that make up the battery are fully depleted, damaged and probably no longer capable of storing a charge, for the reasons given above. You should stop charging this battery after it has reached 75%, otherwise more cells are likely to become damaged and so on until the entire battery is dead, unresponsive and useless.

Nov 20, 2011 | Acer Aspire One PC Notebook

2 Answers

my battery always stays charged, so why is my laptop telling me that i need to replace my battery?


Hi,the reason why your laptop is telling you to replace Battery is,you have killed your battery without knowing by Charging it always,since you have constant power supply,you should at least after getting a new Battery,discharge it four to five times a week longer life of battery,by these i mean,unplug cord from mains let power drain to 5% or 10% before charging again while working and if fully charged and you are not making use of it disconnect and if you want to make use of it use battery instead do not connect immediately to mains until power drains from battery.Just like your mobile phone,you only charge it when need be(ie. when Battery is Low).

Jan 01, 2011 | HP Pavilion DV7-1020US Laptop

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