Battery Life and First Time Charging on Li-ion Batteries. Myth? "Ok you bought a brand new mobile phone with brand new battery, after checking its working ok kindly switch it off and charge it fully (100%) then start using it. IT WILL INCREASE YOUR BATTERY LIFE.", said by the Seller.

Is this a myth or absolutely true when talking about Li-ion batteries?
That recommendation from the seller was true for old batteries, and it seems they still keep saying that to customers!

Nowadays, batteries are often Lithium-Ion or Lithium-Polymer and such batteries (as I have read many times and based on my own experience) would be stronger if you charge them often. The first time charging and "wait-until-full-discharge-before-recharge" and "don't-use-when-charging" are not applicable to these modern batteries.

Li-Ion and Li-Polymer batteries, if charged often, after about 1 month, would reach to their maximum performance, and you are recommended to charge them every time you find an outlet!

In stock Help application of my Sony Android device, In a section about Battery Life, it reads:


Charge your phone often, This will not affect the lifespan of the battery.