Common sense for battery of the smartphone

How do you feel about battery having under 20% on your phone?

I would like to give some tips to make your battery life better!

1) It is better for battery to charge frequently than using until 0%.

    - some people may think that using battery until 1% left is one of saving way but it is better to change or charge when having less than 40%. 

    - Generally, battery from the smartphone is composed of lithium ion battery, which total amount decrease as having more discharge so it is better not to make discharge by charging frequently. 

2) Low Temperature

    - it makes charge speed slow and discharge in short time because low temperature makes lithium ion move hard

3) Better not to pull out charge cord straightly when turning on green light.

    - Green light does not mean it is full battery exactly, still available to charge a little bit more so wait for a minute.

4)Don't care about charging through charge case or mobile phone directly.

    -  some people think having charge on the phone directly is not good for battery life but it does not matter but it is better not to use during charging like calling.