The Efest Pro C4 is a 4 bay charger powered by mains or 12v adapter. With the 12v adapter, the charger remains cool, Using 240v mains, the top of the charger reaches just over 50°C.
The Pro C4 will take all of the battery sizes stated in the manual, and also 20700 .
The Pro C4 charges with a tricle current if the battery is below 2.9v.
Charge current with 1 battery or 2 batteries in is around 0.88A, with 4 batteries, the charge current is halved to around 0.44A
A fast charger for high drain batteries, but the charge current is a bit high for standard ICR batteries unless you charge 4 at the same time.
