The Battstation Optimus by ibattz ($129.95) doesn't just have a long name—it has a long battery life. Eight iPhone charges, to be exact. If you have an iPad, you can expect two full charges using the Battstation Optimus. I have to admit, I'm pretty impressed.
Weighing just under a pound (.79, actually), the Battstation Optimus isn't the lightest portable charger on the market, but I wouldn't expect it to be. While I don't use this charger for every day tasks like running to the grocery store or the park, this charger is my go to for car trips, days at the soccer field, and any type of business conference or event I attend.
The Battstation has a 20,400mAh Panasonic battery that is charged with a micro-USB cable. The battery is the same automotive grade that you'll find in some electric cars. It has 5V DC 2.1A and 1A outputs, one at each end, to charge two devices at the same time. It's equipped with an emergency flashlight, which is helpful if you're out camping or in need of a small flashlight.
Because the battery is so large, recharging the Battstation Optimus takes about 15 hours.
One of the features that I love most about the Battstation Optimus is that the outputs are found at each end of the charger, which makes it great for when my kids share it in the backseat of the car. One son charges his iPad and the other charges his iPhone, and I don't worry about cables being pulled at an angle like I did with chargers I've used in the past.
As mentioned above, the Battstation Optimus charges an iPhone up to eight times, an iPad twice, and I've been able to charge my iPad Mini 3.5 times before recharging the Battstation.
ibattz makes other great products as well, including several battery cases. My favorite, the Mojo Vogue ($89.95), comes with changeable parts and the option to replace just the battery when the time comes.