Intellectual protection : the torch is installed protective apparatus to reliably protect battery and extend torch ' s service life ; intellectual charger is also installed with short circuit protection and charging display apparatus 智能保护:电筒内配置有过放、过充及短路保护装置,有效地保护电池、延长电筒使用寿命;智能型充电器设有短路保护和充电显示装置