This is going to go fast!! You’ll want to hurry and go to the Energizer Facebok page and sign up for a free 4-pack of Energizer Rechargeable Batteries coupon!! I will mention that it will need to pull your personal information through an app, so if you are not comfortable doing so, you will want to pass on this one. This offer is limited to the first 30,000. The best part is that is mailed to you! Hmmm…but you might want to be sure you have a charger before you request it! LOL!