It is supposed to be a MOBILE phone, you no longer need to be huddled around an outlet after a long day, just grab this battery and go! Eliminates the "Dead Battery" drama from your daily life.
UPDATED VERSION: No on/off switch, increased battery capacity and a free black carry bag.
They call it a mobile phone, yet how much time do you spend tethered to a wall outlet? This Emergency Mobile Device Battery/Charger has a portable lithium battery in aluminum shell allows you to charge your devices anywhere. 2400 mAh provides enough juice to charge most smartphones at least once and possibly twice. Compact size is perfect to store anywhere (3-3/4"w x 7/8"h x 7/8"d). Four LED lights on the switch tell you how much charge you have left Charges all phones, tablets, cameras, pocket gaming devices and iPods. Li-ion battery can be recharged 500 times with included USB cord. Charge time: approx. 3 hours. Includes battery, black bag and cord to charge battery.
Step 1: Plug this battery into a laptop or any USB port to charge (cable included)
Step 2: Plug the cord that was supplied with your phone into this battery and start charging while remaining on the go!