I thinking about upgrading to the p4 pro.. can I still use my p4 batteries?

Yes you can, slightly less flying time, I have found maybe just 3 minutes..

hallmark007 Posted at 2017-3-4 03:54
Yes you can, slightly less flying time, I have found maybe just 3 minutes..

My charger is strongly heated while charging the battery and not much hisses. the higher the power level, the higher the temperature.

fans8cf22af9 Posted at 2017-3-4 04:03
My charger is strongly heated while charging the battery and not much hisses. the higher the power level, the higher the temperature.

Yes but it shouldn't be overheating.