Power Capacity:
Power Capacity is a very important thing during the time of buying a power bank. Choose your power bank capacity according to your devices. Because a Smartphone and a small Bluetooth device require different capacity for complete charging.
Battery Capacity:
Every Power Bank comes with different types of Battery Capacity. So, choose that good for your charging devices.
Input & Output:
Input & Output is another important thing about Power Bank. The charging time is greatly depended on Input & Output power. Input power determines your Power Bank charging time. On the other hand, output power determines your device charging time.
Amperage (A):
Ampere is using for measuring the unit of electric current. It helps you to measure your input & output power.
Protection:
Power Bank is highly required for your security purpose. You should choose a Power Bank that provides multiple security options. I recommended you to choose Lithium Polymer Battery for more safety & assurance.
If you follow the below things, I am sure that you will easily understand which is the best power banks.
