Forgetting to charge your smartphone the night before will often mean that your device dies on you midway through the day, leaving you unable to send important work emails. If you’re an EE customer though, the days of seeing your smartphone become utterly useless when the battery goes flat may be at an end,  EE gives you the Power Bar external charger which you can use to charge your smartphone. When the Power Bar is flat, you can either choose to recharge the device yourself