Android - Battery Life and First Time Charging on Li-ion Batteries. Myth?
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.
Li-ion does not need to be fully charged, as is the case with lead acid, nor is it desirable to do so. In fact, it is better not to fully charge, because high voltages stresses the battery. Choosing a lower voltage threshold, or eliminating the saturation charge altogether, prolongs battery life but this reduces the runtime. Since the consumer market promotes maximum runtime, these chargers go for maximum capacity rather than extended service life.
Source: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
yrajaby is right.
Other things you have to keep in mind:
- follow the instruction about the batery temperature range
- do not keep your battery completely discharged for long periods of time