So, I would like to buy extra batteries for my MTS. On Ebay, you can get 2 new batteries, plus a charger for 14.99. Or 1 battery for 5 bucks. Obviously they are generic, and I don't mind if they don't give me a full charge like an OEM would. I just want to know, can these batteries harm the phone? Cause a short? Kill my beautiful new MTS? If you guys have baught these cheap hong kong batteries or battery/charger duo packs... let me know what you think. thanks!