The usual setup for a smartphone is to charge it with one cable and charge your backup battery with another, but the 'PRSRV' battery charging station looks to combine these two functionalities.
The 'PRSRV' works by being plugged into one power source and instantly charging your smartphone (if connected) until it's full. The 'PRSRV' then seamlessly switches to charging the internal power bank as well as the removable battery pack. The removable battery within the 'PRSRV' is capable of providing 30% of a charge for your smartphone and is small enough to be stored in your wallet. The main battery in the 'PRSRV' battery charging station features an 8,000mAH rechargeable battery.
The 'PRSRV' battery charging system is compatible with iPhones, Androids and USB-C devices.