2 batteries at half the price of an original and yet ... !!

Given their very low cost and the few comments about this pack of 2 batteries that LP-E6, I asked myself questions before ordering ...
Are they worth the shot? and above all they are "safe" to settle in my Canon 7D without risk of damaging the electronics or simply to make me miss a great picture at time t !! Well, although a month after purchase, I can reassure you that all is ok !!!
They are fully recognized by the original charger, information displayed by the 7D are entirely consistent with those original batteries: 8 different digit code for 2 batteries pack, recharge level 100% usable and now after 182 shots for one and 176 for the other (side by side in a grip BG-E7), they still have 60% of available charging !!
What of better ?? Nothing, except that it is worth buying (and largely !!) that these "false true Canon" fakes that look just break the real nose, but that drop and deny the charge after 3 weeks !! (After an unfortunate experience lived purchase on the Net on a trusted site !!)