If you're looking for a nice external battery pack to keep your Galaxy S6 or another device charged up, then you may want to take a look at this EC Technology battery pack. It's a 12,000mAh battery pack which is roughly 4 times the size of most smartphone batteries these days. And it has two USB ports. Allowing you to charge two devices at the same time. It's on sale for $19.99, but you can grab it for just $12.99 right now using the promo code C4MSPS5P, you can grab it from the link down below.