Sometimes you have an item of electronics, like a radio or a handheld computer game which takes batteries and has nowhere to plug in a power supply. This idea is for a power supply for these devices.

Say this is a device which takes 4 AA batteries. You would insert the batteries marked "+" and "-" with a couple of dummy batteries between them. Thin ribbon cables would lead from the "+" and "-" batteries back to the power supply. You select "6v" on the power supply and your device is now mains-powered.
-- hippo, Jan 07 2005

BE-AA, 1-6 AA Cell Battery Eliminator for 12-24 Volt Systems http://www.qcavionix.com/be-aa.php
The QCAvionix 1 to 6 AA cell battery eliminator will power any device that requires up to six regular or alkaline batteries from an aircraft, boat or automobile 12-14 volt or 24-28 volt system. [Ian Tindale, Jan 07 2005]

Those little black AC power blocks put out a high amount of ELF radiation as they are not shielded usually.
-- mensmaximus, Jan 07 2005


mens: oh. hippo: yes. [+]
-- david_scothern, Jan 07 2005


You just can't trust elves.
-- hippo, Jan 07 2005



halfbakery