Use a USB cable and a power bank
Use a wall charger with the correct charging cable
Use a laptop or computer USB port
Use a car USB charger
Use a wireless charger if the device supports it
Replace the battery with a charged one if the battery is removable
Use an external battery pack designed for the device
Charge through a docking station if supported
Check the device manual for alternative charging methods
Do not attempt to power it with an incompatible charger