POWER BANK colloquially called the energy bank, a portable charger is a great gadget that you can always have with you. Recharge your Power Bank, then take it with you. Thanks to these gadgets you do not have to worry that your device will be discharged. You can use Power Bank when going to the mountains, or to the beach, where access to the electrical network can be limited - do not let your Smartphone, Iphone go dead while taking souvenir photos! Always have a charged battery!