Magré everything works

I bought this cable because I really needed to use my computer (I had no drums). With the offer or proposal to purchase with batery for 50 euros, I did and I'm glad for that. I bought this power cable after having read all the reviews (positive and negative), and I now find myself in the case to offer my evaluation.
The cable works, I get to charge my battery, but sometimes a small movement of the loader (including the conection to the black box) that there is a false and therefore the conection baterie not load. If I would have no baterie, the problem membêterai lot, but fortunately with a battery that works well, that's fine. You just move a little cable, hear the little sound it makes (zztttt ...) to see if the PC load well.
On the other side, I chose amazon to be a trusted site, compared to other offers on the internet. For 20 euros I think that despite her design problems (false connection found before the first week of use) q a product that is doing its function and can help us in emergencies, I bought there less a month and I hope he would like at least 1 year.