Solved!!
After extensive search on the net, I found the answer. The charger, all the models btw, has a safe feature that it automatically shuts itself down if it senses something "weird" in the eletrical current. Welll, there was a power outage in my house, and thats when the problem appeared.
To reset the charger, simply unplug it from the wall outlet for 1 minute, and it resets itself. I left it off the outlet for 3 mins just to be safe. When I plugged back in, perfect recharging!!!