A lot of people bring these back as they are dismayed at the amount of time it takes to boil water. They often take over 20 minutes to boil1/2 a litre of water. You need to look at the physics of this. A 12VKettle will often draw 20 amps at 12V. This equates to 240 watts of power. Whilst this may seem a lot, it is generally only a fraction of a domestic 240V Kettle. They routinely draw between 1800-2200 watts of power. No wonder they are quick! 12V Kettles work, but the laws of physics are against them. You may be able to live with them once you are aware of the above.