Bottle Warmer Reviews enlightens consumers of the different types of bottle warmers and the atmosphere, which they can be best used. Portable bottle warmers are such that they are conveniently moved about in the house. One will not have a problem in taking it from the living space to the kitchen and from there to the bedroom any time bedtime calls as it may be needed in the dead of the evening. These sort of bottle warmers are battery managed. Another type if battery operated bottle warmers is these used for traveling functions. They have alternative power source as the car cigarette light.