Smartphones have been evolving at incredible rates since the very first iPhone changed the game back in 2007. Phones are now thinner, lighter, faster, have larger screens, and are improving all around at an incredible pace. You can argue that one thing has not kept pace, and that's battery life. No doubt smartphone batteries are getting smaller, carry more capacity, and run on more efficient chipsets than ever before. Screens are bigger, brighter and we demand so much from our smartphones than before. Calling, texting, Twitter, Instagram, Facebook, photography, gaming, fitness Tracking, etc. This constant use will push almost any modern phone to make it through those really long days of constant use. Furthermore, many manufacturers seem to be swaying away from replaceable batteries like every iPhone and the latest Samsung flagship, the Galaxy S6.

Battery Power Packs are quickly evolving just like our smartphones to become smaller, sleeker and hold more charging capacity. Battery Power Packs are charged and available for you to avoid ever running out of battery life again. Carrying a battery power bank is almost as simple as carrying an extra smartphone battery around, and often can charge your cellphone multiple times on a single power bank charge. Because of this portability you can easily charge your phone while still using the device or even having both units in your pocket during the day.

Here are the five best deals on power packs we have found recently.

Kmashi MP828 20,000mAh

Kmashi MP828 20,000mAh Lightning Fast Charging Power Bank - Yes that's right 20,000 mAhs. That's enough to charge your iPhone 6 or Galaxy S6 seven or eight times before needing to recharge. It features 2 USB Lightning ports allowing you to charge two devices at a time. The Kmashi is only 6.3" by 2.5" in size and will easily fit in your pocket. Best of all this power pack is only $28.99 and has been getting great customer reviews on Amazon with an average rating of 4.5 out of 292 votes.

Get the Kmashi MP828 20,000mAh Power Bank today / $28.99

Lepow UStone 12,000mAh

Lepow U-Stone Series 12,000mAh External Battery Pack - This 12,000 mAh battery pack comes in a very sleek design measuring 6.7" tall by 3.1" wide and being just 1" thick. The 12,000 mAh battery should charge most smartphones up to three full charges, and the device has a LED display for checking battery charge. It also features a flat usb cable that comes with a hide away storage compartment. The Lepow U-Stone is priced at $34.99 and has a 4.5 out of 5 average on 285 reviews.

Get the Lepow U-Stone 12,000mAh Battery Pack today / $34.99

Kmashi Victor K1 5,000mAh

Kmashi Victor K1 5,000mAh Portable Charger - This tiny little pack is stylish and very portable offering 5000mAh or roughly 1.5 to 2 smartphone charges per use. Best of all it's only $10.99 and has an average rating of 4.9 out of 10 votes.

Get the Kmashi Victor K1 5,000mAh Portable Charger today / $10.99

Innogie 6,000mAh

Innogie 6000mah Passion Dual Portable Charger External Battery Power Bank - The Innogie Power Bank is about the same size as the above Kmashi Victor K1, but offers 1000 mAh more. This should charges most smartphones up to 2 times on a single charge. It goes for $19.90 but does feature a LED letting know the unit is fully charged. Rated at 4.9 from 240 ratings.

Get the Innogie 6,000mAh Power Bank today / $19.90

Aukey 20,000mAh

Aukey 20000mAh Portable Charger External Battery Power Bank - This 20,000 mAh Bank will charge your smartphone 6 to 7 times on one charge. It features 4 LED lights to indicate power levels and has a built in flashlight. It costs just $29.99 and has 4.4 out of 5 stars from 282 votes.

Get the Aukey 20,000mAh Power Bank today / $29.99

There you have it, five very well rated and reasonable well priced Power Banks available on the market. It is great to see these Power Banks improving as quickly as our Smartphones themselves. So until wireless charging takes over, I'll be banking on these power banks.