found in any small spaceship.
Organic polymer container
Your container is going to be you lab. Add silica and salted iodine separated by cellulose. Use a well coated aluminum cable as a conductor plug. This whole mixture ensures a source of faint energy. However, it is able to store huge amounts of power when connected to a source of electricity.
THE ABOVE INFORMATION IS PURELY FICTIONAL. DO NOT TRY IT AT HOME.