I have the car charger and indoor charging cradle to old cell phone (now defunct) and I'd like to use both with my new cell phone. I can modify the connectors easily on the cradle, and same with the car charger I believe (connect to the plates on the bottom of the phone rather than go in through the plug.) But I don't want to risk damage to the new phone battery. (Old and new batteries are LiIon.) Can someone point me to a web page or reference that shows the calculations needed to make sure no damage comes to the new phone battery?
Or possibly its time to make or buy a universal charger? Info on that?