There is a very specific way that all rechargeable batteries must follow in order to extend the battery’s life. Your battery has a memory, and that memory also needs to be exercised regularly, or its corrosive inner concoction can dry up. A battery is capable of a 100% charge when you first get the battery (hopefully). The battery needs to be fully depleted and then fully charged without interruption in order to extend the battery’s life.
If a battery does not get a chance to discharge and then fully recharge, it will start to remember the amount that is charged. We say this without consciousness involved indeed, as the battery will just the ability to charge in certain areas where charges have not occurred in a long time. The area essentially turns dry, as it is just a chemical paste that stores a charge when voltage is applied.
With the proper attention to your battery, watch as the charged percentage drops to near 5% or below. Then, plug your charging cable in until the laptop recharges itself. Sure you can use your computer while it is both recharging and charged. But, by all means, give the battery a chance to do its job and let it keep itself charged and alive. It will do this all by itself, provided, you give the battery the opportunity to fully charge itself across all of the battery cells to 100%.