When you charge your power banks for few days It will not drastically harm your devices. Acid Eye company that makes charging accessories said that Your phone is very smart. Once it is completely charged, it knows when to stop the current from coming in to protect your phone from overcharging. So far so good, but there are situations when leaving that smartphone plugged in overnight can slowly reduce the lifespan of your battery. If you go for a cheap power bank it will not allow heat to escape, this heat will increase the temperature of the battery and will cause cell oxidation, which will shrink the capacity and shorten the lifespan.
For that, you have to go to a brand for this purpose. Let us explain with your example. First of all always go with Lithium battery instead of Polymer. I bought Acid Eye 15600 mAh power bank which is made up of the Lithium battery. This power bank has lithium battery is to keep them charged between 50 and 80 percent. This allows for the charged ions to continue to work and protect the life of your battery. Charging your device throughout the day will give these ions just enough energy to keep them going this is a special feature in it.
When I charging my smartphone with this PB the quality of this charger and cable are very good I am saying this because when I forget my charger to remove from overnight the PB is not heated at all. When your phone is charged fully it stops automatically there is no need of worrying. Make sure you take your phone case off at night if you’re going to leave your phone plugged in and charging in.
The company of this power bank takes care the security purpose of the power bank so that it will not explode when you charge this Acid Eye 15600 mAh power bank for a few days. It provides us with extra protection features like Temperature Resistance OverVoltage, OverCurrent, Incorrect Insertion, Short Circuit, Over Charge and Discharge because of these features you can go for this power bank.
Lastly, never go for a cheap power bank which is available in the market. They are not built with safety in mind and can be very dangerous. They often don’t meet safety standards You can go to this Acid Eye brand for this purpose. It will never disappoint you. I am saying this I have used most of the product of it. Its first priority is to fulfill the requirements of the customers