Stay warm and cosy with a rechargeable electric hot 'water' bottle. With a quick charging time of only 10 to 15 minutes the unit can stay warm for 2 to 6 hours with a maximum temperature of 65°C. They work by charging a heating element inside which heats the gel inside for long lasting warmth, the charger is also designed to with safety to prevent over heating or fire. The nature of these electric hot water bottles means they are extremely safe to operate and use, cutting out the danger of boiling water from a traditional hot water bottle making them perfect for all ages including kids and the elderly. The soft finish makes them comfort inducing.