For DE35 DE38 DE40 DE50. 2 /4 /8 /16 PCS 14500 3.7V 500mAh Lithium Battery. What You Get ：2 /4 /8 /16 PCS 3.7V 500mAh Lithium Battery + 1 /2 /4 /8PCS USB cable. Otherwise, it will lead to batteries overheat and result in battery deterioration, burst, balloon or may even cause fire or explosion.
