Ok not another thread about how bad it is,a bit of a odd one is this. I recently bought a genuine mains battery charger from ebay only to be sent the wrong one! anyway he didnt have another samsung charger to send but he had a genuine nokia thet fits the galaxy. When i charge my phone with my samsung charger my battery lasts for about a day,but when i use the nokia one it lasts for two to two and a quater days? whats in the battery charger,a ecu?