As of Feb. 4, you can get the Anker Zolo Portable Charger for just $15.59, down from its usual price of $25.99, at Amazon.

Our team of experts has selected the best portable charger out of dozens of options. Don’t buy a portable charger before reading these reviews.

He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio products, including headphones and speakers. He's also an e-reader and e-publishing expert as well ...