Hi guys, i need to change the battery of a MIO N177 GPS, it's a 3.7v battery, a Nokia BL/BR-5C battery would fit perfectly and it's 3.7v but i don't know what wire goes where, there are 3 wires in the GPS battery conector red, black and white, i guess red is +, black - ground and the white is for charging but i'm not sure. Is there anyone who knows about that stuff or done it already that can help me. Thanks in advanace.