Sounds like normal start up sequence for the charger. However, absolutely nothing happens when putting the battery on the charger? Even the lights on the battery don't cycle through red, green, and orange (yellow to some)? Note that on the standard chargers (the black one) you should see a green light on it as the battery cycles through the colors. Can be hard to see depending on how you have the charger positioned. On the rapid charger (the gray one) you should see one green led on the charger as the battery cycles through the colors and then a full 4 green leds should appear. If they do cycle and the charger doesn't start that means that the battery is less than 25% depleted. The batteries won't charge unless they are depleted more than 25%.