Improper use of your phone charger can cause your battery to quickly stop holding a charge.
Everyone has their own approach to charging a gadget: some people charge it all the time, while others only put it on the charger when the charge level is almost zero. It’s important to know how to charge your phone properly so that the battery lasts longer.
Many people wait until their phone is 100% charged. However, experts recommend keeping the charge between 40 and 80 per cent. In this range, the load on the battery is minimal, which significantly increases its service life. If you charge the phone to the maximum, the battery will be under constant stress, which negatively affects its durability. Mistakes that can damage the battery: Do not charge your phone in hot places or in direct sunlight. 
Choose a cool place to charge the phone without exposure to sunlight. Avoid using the phone while it is charging. At this time, the gadget not only does not charge, but also begins to overheat. If the phone overheats, it may start to perform poorly or even turn off. 
Use only the original charger. Chinese fakes can damage your battery. Non-original chargers can cause oxidation and damage to the chips inside your phone.