Someone gave me a Baofeng UVB3+, and a UV82. Batteries were shot. I have been unable to find a battery for the UVB3+. The existing battery has no part number on it. I can buy a new UVB3+ for about $22 that includes the battery, but I don't need another radio, just a battery. Does anyone who regularly deals with Baofeng radios know where I can get a new battery?