VACUUM INSULATED BATTERY

Vacuum insulated battery housings, packs, systems, powered instruments, and methods. The insulated battery system may include a vacuum insulated housing with an outer wall and an inner wall having a vacuum space in between. One or more battery cells and other components are receivable in the vacuum insulated housing. A lid or casing seals the vacuum insulated housing. The insulated battery system protects the battery cells and other battery components from thermal degradation, for example, during autoclave or steam sterilization procedures.