The Intocircuit Power Castle is one of the top rated external batteries on the market, boasting a 5 stars in 200+ Amazon user reviews. Right now you can grab one for over 70% off - just $34.99, the lowest price on the web.

The Power Castle packs 15000mAh of portable power enough to charge an iPhone 7 times over. The Power Castle features an LCD display and dual USB ports, but what really sets it apart is the built-in SmartID technology which optimizes charging speeds depending on the device you connect. To top it off, a brushed aluminum casing gives this device some serious style.

The Power Castle typically sells for $130, but you can get yours now for just $34.99 - 73% off MSRP.