Hello! I've got a BlackBerry Classic. It charges super fast on the original charger. However, when I try to charge it in my car or on another charger, it takes ages (4-5 % per hour!). The problem is that I travel a lot and I was wondering if the same thing could happen if I buy a knock off brand battery pack online. And any ideas on if (and how please) I could properly charge my cell phone in my car?
Many thanks!!