Charger extremely simple to use: you insert the battery the camcorder (Sony HDR CX 220) in the box, the button is red, load it; and when the button turns green, it's loaded. No scam to the charging time: the empty battery is actually charged after an hour and a quarter, as shown in the manual. It is in any case faster than charging by the computer, and a lot more convenient when you film a long time away from home. Should he make a long thread? (About 1 m 20). He tends to tangle, especially if you carry it in a pocket .. For the rest, it's a good product.