In 1995, the pouch cell surprised the battery world with a radical new design. Rather than using a metallic cylinder and glass-to-metal electrical feed-through, conductive foil-tabs were welded to the electrodes and brought to the outside in a fully sealed way. The pouch cell offers a simple, flexible and lightweight solution to battery design. Some stack pressure is recommended but the allowance for swelling must be made. The pouch cells can deliver high load currents but it performs best under light loading conditions and with moderate charging. The pouch cell makes most efficient use of space and achieves 90–95 percent packaging efficiency, the highest among battery packs. Eliminating the metal enclosure reduces weight, but the cell needs support and allowance to expand in the battery compartment. The pouch packs are used in consumer, military and automotive applications.