Over the years I've accumulated a bunch of dewalt chargers. I only want to keep one and gift the others, what is the difference between them and which one should I keep?? :
New Dewalt ToughSystem Charger with Dual Battery Ports, USB, Storage
DeWalt DCB132-GB XR FlexVolt Dual Port Multi-Voltage Charger
TOUGHSYSTEM® 2.0 20V MAX* Dual Port Charger | DEWALT
DeWalt DCB104-GB 18V 240V XR 4 Port Fast Charger
DEWALT DeWalt DCB104-GB 18V 240V XR 4 Port Fast Charger