The 5200mAh battery can fully recharge an iPhone 7 three times.
Brad's Deals Editor Michael,
This Tylt POWERPLANT 5,200 mAh Battery Backup with a micro USB charge arm drops from $69.99 to $7.99 at TechRabbit. Plus the shipping is free, which makes this the lowest price we could find for one by $2. These chargers also have a standard USB port so they can be used with any charging cable. There is no sales tax (except NJ).