All usb chargers are the same. If you damaged the Device with the charger, its not your fault, but a problem with the charger. I would not use it until you find out what really happend.
- The BB does not run without a battery, regardless if the charger is connected or not. I would try to look inside the battery compartment if something is missing or broken.
- Try a known good, charged battery (but, I think you tried this already)
- It might help also a little to remove the battery and let the BB pause for about an hour.
- Remove any additional memory card
- Remove SIM card
- Try to check if all keys are working ok and not stuck.