
With these 20W a 60Wh battery would last for 3 hours. Usually a 15.6" notebook consumes about 20W when using the battery. This is a question, that is hard to answer, because it depends on a lot of different factors such as CPU, Display, GPU.


On the contrary for many modern devices the opposite is true, it is best to keep the charge between 20% and 80%. The so-called memory-effect of a Lithium-Ion battery can be disregarded in normal use, a complete charge after a complete discharge is not needed. This function only allows charging up to 80% capacity to prolong he lifespan of the battery. Some manufacturers integrate a battery protection function in their notebooks. Furthermore, it would be optimal to never fully charge or discharge your battery, but rather to keep it between 20% 80% charge.This is why we recommend removing the battery when using the device plugged in for a longer time. However, turning your laptop on and off while plugged in is one charge cycle. Rechargeable Lithium-Ion batteries, which are found in nearly all modern electronics, have a limit of somewhere between 500 to 1000 charge cycles.High temperatures increase the self-discharging rate. Avoid high temperatures for example due to direct sunlight or being left in a hot car.After being uncharged for a while, the battery needs about two to three complete charge cycles to reach its full capacity again.If you have multiple batteries for your device, rotate between them.The optimal temperature for batteries is between 10 and 30☌, this range is usually exceeded in a powered-on notebook. If possible charge your battery while the notebook is turned off.Charge the battery again, when between five and seven percent of charge remain. Don’t fully discharge your battery, because this can lead to a depth discharge.

