U430 - How to use properly with battery?

Is it o.k to conect the charger to the computer constantly?
I mean, there is switch that when the battery full load it charge directly the computer?
I ask because most of the time my computer on my table and I don't know if it's good to conect it to the charger constantly or everytime it is full disconect the charger.
Thank's!

A laptop computer battery should last between two and four years, or around 1,000 full charges, i have mine always connect to power when at home and the battery now holds about 50% charge it is 7 years old and well exceeded my expectations on life of the battery
now days it all about storing the battery
Fully charge new batteries before use.
A laptop battery’s health deteriorates the more you charge and discharge it, running it from a power source will make your battery remain in a state of charge/recharge. Instead, when your battery gets to near 100% charged, unplug it from the power and plug it in again when it is low.
Heat will dramatically affect battery life for both batteries in your laptop and spare batteries you have stored. Keep spare batteries in a cool place and try to make sure that your laptop has plenty of ventilation so that the battery does not get too warm.
Keeping the laptop cool will also reduce the need for your fan to run which also uses more battery power.
If you are using your laptop as a desktop replacement, consider removing the battery and just running the laptop directly from the power source.
Store spare batteries or if you not going to use it for a week or so with approximately 40% charge, batteries even when stored will discharge over time.
Adding more RAM to your laptop will actually decrease battery consumption as RAM will be used rather than your hard drive to run resource intensive processes.
Your hard drive is a mechanical device and is a significant power hog.
Try to minimize CD/DVD drive use. As with your hard drive, your optical drives are a mechanical device that will consume a lot of power when in use.
hope this clears a few things up
Thx dave
yoga 2, lenovo b540
3 custom gaming pc systems

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