The charger supplied with my FT-60R is 12v 200mah. I have been using a 12v 2A power supply lately to charge it instead of the stock over-night charger. My battery was already bad and barely ever held a charge before I starting using the larger power supply. When I plug the radio into the charger it says 11-12v and seems to rapid charge it. The battery hold a charge longer then it did before. It becomes warm after 30 mins on the charger usually when I take it off. Can someone tell me from an electronics point of view if i may be damaging the radio? I am having no problems so far... Also was thinking it is acting like a rapid charger right? thanks!