The charger recharges the batteries (including the original) in about 2 hours to complete. A small LED will change from red to green when the batteries are full.
A high temperature development, I can not determine.
It is very convenient that you (Micro USB) can use his smartphone for the charging cable. -> A cable less, rumfliegt that at home or on vacation. The original power supply thus remains unopened in the package.
Included is also a car charger. Since I do not use it, I can not comment on it.
The performance of the battery is Patona after which the original batteries in anything! That was my biggest concern in advance.
What is particularly practical is that the batteries are supplied in small plastic bags. These are super transport boxes!
I am very satisfied and would recommend this highly Bundle.