![]() An old battery might be able to deliver 5 hours of operation under the same light load, but 90 minutes or less under the same heavy load.īattery fuel gauges tend to assume that the remaining battery life and the amount of power drawn from them are inversely proportional. A new battery may be able to deliver 6 hours of operation under a particular light load and 3 hours under a particular heavy load. While this affects battery life at all load levels, it affects heavier loads more than it does lighter loads. As batteries age, their internal resistance rises. The reason for this is internal resistance. However, under lighter loads, the battery might get to 15-20% before it abruptly drops the percentage. In my experience on my laptop, at higher loads, the battery will drop from higher percentage levels down to about 7%. Battery fuel gauges often fail to account for this effect resulting in inaccurate indication of the battery's state of charge. Hope it works well.Īs a battery ages, its internal resistance increases which affects battery life under heavy load more than it does under light load. May be I can check this by switching other laptop to Windows 7 in couple of weeks. One more addition to this reasoning is I've got 3 same laptops bought at the same time and all are having XP on them, they are still working fine only my laptop got this issue by switching to Windows 7. May be to get more clarity I need to switch back to XP, but I cant to do that at this moment. I'm not sure about your case, but in my case above answers doesn't apply to me and it might be a bug in the Windows7 OS. Since then I was continuously testing my battery with full charge to completely dry out, it never jumped again. But yesterday when put up a question all these findings have come out. I was bit lazy in finding the problem so I let it go for a month or so without investigating. I'm saying this because as soon as I shifted from XP to Windows 7 this problem started. Now, my laptop is working fine and notifying me when it reaches 10% and hibernates when it is at 5%.Īs the answers you got from techie007 and others I'm not sure whether they should be accepted as is. If you look at my question Brian suggested some finding on net about this issue, so I tried to modify settings to get the notification after that it never jumped from 25%-6% again. But, somehow I wanted to retest it again by changing some settings in the Balanced power mode and surprisingly it started working fine after changing couple of settings. After looking at your question, even I thought my laptop battery life is over. After posting the question here, I did try to find the problem and I found that even my battery life jumps same as yours from 25%-6%. I posted question saying that notification is not showing up in Windows7. Otherwise, read through the sections that correspond with your diagnosis to fix your laptop.I had same issue as yours. If you haven’t noticed any signs of battery failure and your charging cable passes the tests above, jump straight to step 2. This information will be available on the battery or the manufacturer’s website. However, you will also need to know the voltage rating on the battery too. If you do have a removable battery and a multimeter, you can use the multimeter to check the connection ports. Inspect the seams of your laptop for any bulging or separation. ![]() Sometimes this can be normal wear and tear, or you’re doing more on your laptop than you did before. The battery seems to go dead faster than it did when you first purchased it.Take note of any of the following issues: But there are some key indicators that let you know your battery is going bad. Especially if you can’t power your computer on or you don’t have a removable battery. These devices can only be detected when they are turned on.Ĭhecking the battery is a little more difficult than checking the charging cable. Many people use the USB to Ethernet adapter even when there is an available USB port in the laptop. This will prevent the power supply from being damaged. Do not install it on the plug that is backward. When you are installing an accessory such as a battery, make sure that you install it correctly. To reduce the use of the power, turn down the monitor brightness.ģ.The incomplete installation of the accessories ![]() In the case of the laptop, the monitor brightness makes it possible for the power to drain even faster. Many people like to use the computer in the dark because it helps them read better. If unnecessary processes are going on, then stop them immediately. You should have a device manager in your machine to see what processes are taking place on your laptop. ![]() Why is a laptop battery not charging when plugged in? ![]()
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