Smartphone and tablet batteries are getting more powerful. However, they are dealing with wireless, GPS and Bluetooth connections -- not to mention streaming video and all those apps -- so they are also draining faster. Many of us can't make it through the day without needing a power boost, but who wants to go looking for an outlet?
It's much easier to throw a portable battery charger into your bag. Last year, we covered 10 portable battery chargers, and some of them are still available. But technology, like time, marches on -- and many of the devices in this year's batch are smaller and lighter while providing additional power.
Here are 12 chargers that will help keep you powered throughout the day.