USB Cell Drive is a battery; it’s a flash drive! Cell Drive acts as a USB charger or cell phone charger for those inconvenient times when the proper outlet just isn’t available. Offering the best functions of batteries & USB drives. What’s more is that it streamlines charging, syncing, and data transferring needs. The one-size-fits-all gadgets work with cell phones, GPS devices, Bluetooth, smartphones, tablets & pretty much any other USB device under the sun!