The use is instinctive. The manual is explicit but it is on. The T2600 comes pre-loaded. 3 blue LEDs and a test button provides an estimate of his office. Comes with USB / micro USB cable, I completed the load on a laptop. Then I returned the cord to charge my smartphone, this time using the USB jack on the T2600 also has a micro USB. The smartphone was recharged in just two hours or an identical time to recharge via the usual charger. The cord is quite short: 30 centimeters.
A battery that brings only benefits for very little cost.