$3 Rayovac Coupon This post may contain affiliate links. Please see the full disclosure policy here. Posted on December 19, 2009 Written by Mary Leave a Comment Become a fan of Rayovac on Facebook and you have access to a coupon valid for $3 off 8 pack Rayovac Batteries. Click on the $3 coupon image. Enter your email address and they will email you the coupon.