Crickey - the price of HP spares!
Recently one of our HP 625 notebooks suffered a flat battery. Traced it to the power supply being duff. The laptop was still under warranty and HP promptly sent a replacement power supply. Unfortunately, the end plug was a different design - far bigger than the plug it was replacing. Getting onto the very helpful HP Support again they duly sent an adapter that slotted onto the new plug and fitted perfectly into the laptop. It was about two inches long with a plug at each end - I looked the part number up on the Internet and discovered it was something like $3 on the North American site but in the UK the same part comes in at over £50. Ouch!