The iRestore Professional Rechargeable Battery Pack is an external device allowing users the freedom of mobility while treating their thinning hair. Users no longer need to be positioned near a wall outlet to use the iRestore Pro system. Connect the Pro controller to the battery pack and hang out on the couch, catch up on shows, do laundry, make dinner, play video games or relax in bed. Use the iRestore Pro indoors and outdoors. You can even take it with you on vacation or on your next business trip. The 5200 mAh battery pack offers the ability to use the iRestore Professional for up to 2 weeks before the need to charge. The built-in LED lights indicate when the power bank is low. Simply connect the battery to the same power adapter used for the Pro and plug into a wall outlet to recharge. The small compact size makes it easy to carry with you anywhere. Attach to your waistband using the built-in clip, put in your pocket, or keep it in your purse. The iRestore Pro Battery Pack makes it easy and convenient to use the iRestore Pro Laser Hair Growth System no matter where life takes you.