These are becoming more of a necessity in our increasingly mobile, ‘on-the-go’ world.  Powerbanks come in a variety of shapes and charging capabilities, we would always recommend you go for at least 2200mAh, anything less just won’t give you sufficient charge.  Slim / Credit card chargers are popular as they are discreet in your pocket and some fit in your wallet…

Take a look at a wider selection of powerbanks here