I have one Old Nokia AC-8E charger which i am not using it anywhere. Before some days I have purchased the Nokia X7 mobile phone I got the travel charger with that mobile phone also nut now I am planning to use my old Nokia AC-8E charger for outdoor use. I just want to know that is it safe to use this charger with this new mobile phone. I donít have much knowledge about this and that is why I am very confused. If anyone can give proper in formation then it will be very helpful for me.