I have watched many powerbank review videos and also read many feedback stories from users. One thing majority of them usually complain about is the short length of the charging cable that comes with most powebanks. Whenever I see such reviews I just smile because these individuals lack basic knowledge in physics, Applied electricity or Electrical and Electronics Engineering.
Powerbank cables are made very short to reduce energy loss along the length of the wire in the cable because resistance increases with increase in length. The longer the length of the charging cable, the more the energy loss. This will translate to slow charging and the powerbank will run down faster.
The short cable ensures minimal energy loss, thus faster charging speeds for your device. Although you can charge the power bank with any cable length you desire but when you want to use the power bank to charge your device, it is adviceable to use the short cable for efficient charging.
Written by ProfT for Naijatipsland.com