Instruct: Classify the given Amazon review into its appropriate rating category
Query: Will NOT charge anything unless it's plugged in to an electrical socket.

This is a powersource only and must be plugged in to a wall socket at all times to work. This is NOT A RECHARGEABLE BATTERY FOR RECHARGING OTHER DEVICES - once you unplug it from an electrical socket you cannot use it to charge anything (it does not store power). BEWARE the reviews for this product are misleading. The reviews are for other products that do act as a backup battery source from which you can recharge other devices. I believe that since this product is included as a component of other products the vendor sells the vendor is allowed to include those reviews here as well which is really confusing.