Hisgadget via Amazon is offering the Intocircuit Power Castle 11,200mAh External Battery Charger in Gray or Silver for $22.99. However, when you use the coupon code: BNZ58Q2H the price drops down to $17.99 Prime shipped (free trial). That’s $2 under our previous mention and the lowest total price we could find.
It features a 2.1-amp USB port for charging tablets, a 1-amp USB port for charging most cellphones, LCD display, and travel pouch.
Over 1,200 Amazon customers gave it 4.7 out of 5 stars and left stellar reviews.