Anker has discounted one of its very popular power banks, the PowerCore Speed 10000 QC, to just $25. It is actually listed on Amazon for $35.99, but using the promo code ANKERSD7 at checkout, you can bring the price on down to just $25. Which makes this a great purchase.
The Anker PowerCore Speed 10000 QC is a great power bank to pick up for a few reasons. One is the fact that it is a fairly small battery pack, so it'll fit into your bag or even your pocket pretty easily. But it also has 10,000mAh capacity. So you can recharge your smartphone about 3 times before it needs a recharge. Now this battery pack also has "QC" in its name, and that's because it supports Quick Charge 3.0 (that is backwards compatible too). So you are getting fast charging out of this small battery pack, and that's a great thing to have in your pocket.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap next-day shipping if you need it here extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime by hitting the link below. You'll get 30 days free (if you're a student, you get 6 months), and then it's $99/year. Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits. Remember that if you are looking to pick this up as a gift for someone this holiday season, you'll need to order it by December 18th for non-Prime shipping, and if you are a Prime member, you have until December 22nd, to get it in time for the Holidays. Amazon does also offer extended returns for anything purchased before December 31st, can be returned until January 31st, 2018.