The rental fee is $2.99 an hour or $10 a day(plus tax). A temporary hold of $20 will be placed at rent start. $20 will be charged for failure to return on the go charger. Each Buzz Charge power bank can be kept up to a maximum of two (2) days. For Buzz Charge kept more than tow (2) days, it will be deemed as overdue, you will be charged fee $20,and it is yours to keep The power bank can be charged with a computer, or a standard Micro USB cable plugged into a power outlet.