How to care your cell phone's battery
Before you begin to take care of your cell phone batteries and prolong their lifespan, you need to learn a little bit about them. Most of the ones we use today are Lithium based batteries, which means they work on the concept of ions moving in currents between two oppositely charged electrodes.
A reduction in the capacity of your battery can be caused by repeatedly charging it before the battery has been discharged entirely. This is known as memory effect and can decrease the lifespan of your precious lithium ion based battery. If the battery is recharged before being completely discharged, then it will only be charged to the point till where it was previously discharged. This happens due to the formation of gas bubbles along the cell plates. Incase this keeps happening again and again over a period of time, it will lead to a shrinking of the battery’s power capability on a permanent basis. One way of making sure that this does not happen, is by draining the battery completely until your phone shuts off, and then charging it completely for two to four times.
Unlike what people believe in terms of electronic repair, or what some phone repairs companies claim is the popular belief, it is safe to leave your gadget charged in overnight. This will not damage your battery. But what tends to dramatically shorten the life of batteries is tremendous amounts of heat. It is a good idea to try to avoid any form of wireless charging of your gadgets. This is because there is a lot of heat that is generated as a byproduct during wireless charging, which will degrade your battery very fast, irrespective of the fact whether you are using it or not.
A good way of charging your electronic gadgets is by charging them up little by little, and not completely all at once. This means that say your phone’s current state of charge is 75%. It would be a good idea to plug it in and let it charge for a while, instead of depleting it to a zero and then charging it up full again. In fact, the golden rule of thumb when it comes to protecting your lithium ion battery and prolonging it, is that you never let it run out of charge completely because if they do, they become unstable and difficult to recharge.
Always charge your batteries at low speed for a prolonged period of time, in order to prevent damage due to high voltage or voltage fluctuations. This means that fast chargers, as effective and time saving, as they may seem, are completely out of the question.