Primers only need to be recharged when absorbency has decreased and you are unable to establish contact with your head. Athletes working out multiple times each week typically take three months — or more — to reach this point. Using a Recharge Pack restores your Primers to factory levels of absorbency and enable extended use.
Watch this video to learn how to recharge your Primers.
tags: recharge pack, recharge tray, recharge solution, frequency, how often