How To Drain Batteries. This isnt because they are using more power. To drain the battery faster change your screens brightness to maximum.
Just let the bat cool down before recharge. Change Your Screens Brightness to Maximum. So if you get yourself a couple of four-cell AA battery holders and eight 10-ohm half-watt resistors and solder one resistor across the terminals for each individual cell then any cell placed in any holder will drain nicely flat overnight.
Now-a-days most of the mobile phones come with fast charging option.
Find the negative cable which will be marked with a minus sign - and may have a black cover over it. So if they are a 5Ahr battery discharge them at 500 mA until they go dead. Or on the top of the fridge. You may think that calculating how long a battery will last at a given rate of discharge is as simple as amp-hours.
