Never be without your Boosters! You’ll know you’re getting low on your Boosters because we’ll send an SMS to your phone when your Talk Booster has 10 Mins and again at 0 Mins remaining. For the Data Booster, you’ll get an SMS when you’ve used up 75% and then again at 95% usage. If you think you’ll need another Booster, go ahead and add it. As long as you have an active Base Plan on your account, your Boosters never expire, so you can use them as needed.