Do Laptops Work Without Battery. It might not be a sentament followed by all manufacturers of laptops but its fairly common in my experience for them to work without a battery fitted. James WoodsonDigital VisionGetty Images.
Do It All With Style Performance and Speed. Are you are asking yourself Will my laptop work without a battery This video shows proof that a laptop will work without a battery as I take my completel. You can indeed run your laptop without a battery for as long as you like but you might want to consider buying a replacement battery anyway for the reasons mentioned above.
The CMOS battery only powers the RTC so thats why the laptop works without it.
The reason is that the power supply is good enough to supply. It might not be a sentament followed by all manufacturers of laptops but its fairly common in my experience for them to work without a battery fitted. It now works like a desktop - no battery backup in case of a power failure. It is well-known that any MacBook with battery removed will run at significantly lower clock speed typically around 1 GHz.
