The RAVPower 16750mAh External Battery Power Bank has a list price of $114.99, but with the current 72% discount you can save $83 and buy it now via Amazon for just $31.99.
The Power Bank measures roughly 5x3 inches and weighs just 10.9oz, making it portable enough for travel. The unit is capable of charging an iPhone 6 almost 6 times, a Galaxy S6 almost 4 times, or one full charge for an iPad Air. It can charge multiple devices simultaneously, automatically detecting and delivering the optimal charging current for each connected device. An ultra reliable A+ Lithium-Ion battery provides over 500 battery charge cycles. The portable power bank will automatic shutdown if a short circuit or overload output occurred while unit is charging, protecting your device from damage.
The RAVPower 16750mAh External Battery Power Bank averages 4.5 out of 5 stars on Amazon from over 8,800 people (see reviews). Learn more and explore buying options on Amazon.com.