American Metalcraft BWBAT BuffetBoost Buffet Warmer Lithium Ion Battery (Case of 8)Our optional portable BuffetBoost LithiumIon Battery is the ultimate accessory for BuffetBoosts Warming Block, providing the freedom to cater anywhere, without the need for a constant power supply. Designed to charge quickly and to last for over 3 hours*, this portable battery ensures your food service is not limited by location, making it perfect for outdoor events, remote catering, or any venue where power access or flame heating is a challenge.