Cellular telephones have become necessary gadgets of our modern world. We use them for voice communication, games, surfing the web and checking email. All this consumes a lot of power and can result in a dead battery within a few hours if the phone is not recharged. Portable cell phone chargers make it possible to recharge a cell phone when you don't have access to a wall plug. Portable chargers are small enough that you can carry them on your purse or a key chain.
There is a large variety of Portable Chargers in the market. Some are as small as a lipstick while others are wallet-sized and unfold into an array of solar panels. Other portable chargers can also function as flashlights or key chain. This web page reviews the togoPower by [fuse]chicken
The togoPower battery charger is recharged through a USB port on a computer. An LED indicates when it is fully charged. The charger has the following specifications:
After connecting the micro USB to the cell phone, a button on the side of the charger needs to be pressed to start the charging process. The LED will turn on during the charging process.
The key chain togoPower charger can also be used as a cable to sync with a computer by plugging the standard USB plug into the computer. This cannot be done during the charging process when the LED is on. This recharger is not suitable for synchronizing a phone on a desktop computer since the cable is too short and the cell phone can not be placed on a stable surface. However, it is possible to recharge the togoPower unit on a desktop computer.
The following images show a cell phone being recharged.
The recharging trial started at 3:55 PM with the phone battery level at 81%. At 4:22 PM the phone had charged to 94%. It took 27 minutes to increase the charge of the cell phone by 13 percent.
Overall, the togoPower key chain charger and sync cable does what it is supposed to do in a convenient portable form. The key chain charger weighs 50 grams (1.7 oz) and measures 7×3 cm (2 3/4 × 1 1/8 in). One thing that would make this key chain power pack better would be if it could also function as a flashlight, but you will need to use your smart phone with the appropriate app for that.