I have a camcorder which can be powered up without battery using AC/DC power adapter of 5V 2A. However, when i replace the power supply with powerbank of same supply of 5V 2A using usb converter which can convert the wire to fit into the adapter hole, it cannot be powered up. The power indicator lighted up for a second and off automatically. Why is this happens? Someone please help. thank you.
Try different USB cables. I've had cables that would charge my phone fine from its charger, but not from my power pack. Using a different cable that looked exactly the same worked.
You did not tell us which camcorder. Most camcorders cannot be powered using the USB port and need to be connected to power using the DC-in port. Since we don't know which camcorder you are trying to use, we cannot be sure this is the problem you are having. But if it is, then the power bank you are using is not using the right connector. You need the connector to work through the DC-in port on the camcorder. If you tell us which camcorder, we'll have a better chance of helping you.
