Enjoy the peace of mind that comes with safer LiPo charging. Place your RC car, truck or truggy's lithium battery in a charging container to prevent a short circuit, programming error, or other issue that results in battery fire from damaging other property. Soft bag styles and hard "safe" designs with flame retardant construction ensure maximum charging safety. Note: even when using a charge safe or bag, no battery should ever be left unattended while charging.