The simple answer is so that your battery shipments comply with U.S. DOT safety regulations which require that the terminals of select battery types are protected from making contact with each other when in transit from your location to the sorting facility. Because battery types are often hard to distinguish, we recommend bagging or taping all batteries. Taping and bagging prevent the batteries from igniting or combusting, which can result in fires, personal injury and other damage.
Posted in: Battery Recycling Safety