Unifun via Amazon offers its 10400mAh Waterproof External Battery Pack w/ LED Flashlight for $16.99, but if you use the coupon code MDTVY4WW the price drops to $13.99 Prime shipped. That’s $3 off the already low sale price and the lowest we’ve seen it go for at Amazon.

This power bank is waterproof, dustproof, anti-shock and skid resistant. It can charge up the iPhone 6/s five times on a single charge and with dual USB output you can juice up two devices at the same time. It also has a four integrated LED Power status indicator and auto power-off so no energy is lost when not in use. Rated 4.3/5 stars by over 1,100 Amazon shoppers.

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UNIFUN Reliable · High Capacity · 1 year warranty The U821 power bank is waterproof (IP66 rating), dustproof, shockproof and skid resistant. Its strong LED flashlight can keep lightling up to 6-8 days after fully charged. Perfect for outdoor/ travel use.

Easy to use: ▪Charge your two devices at the same time: Just connect your devices to the two USB output ports with the micro USB cable. Apple cable required if charge iPhone, iPad devices. ▪Charge the U821 power bank: Connect the item to the laptop, computer with the micro USB cable. Or charge with the wall adapter. (Wall adapter is not included.)

Wide application range Suitable for a wide range of occasions, such as parties, BBQ, camping, mountain climbing, picnics, etc.

Broad compatibility: Compatible with iPhone 6 Plus 5S, 5C 4 4S, iPad Air/iPad Mini, Samsung Galaxy S5 S4 S3, Google Nexus 7,cameras, tablets, PSP,MP5 and other digital devices.


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