... 3.Eco-Friendly&CE; 4.Good After-Sale 1:Feature: A): Standard MuTong battery series adopt class A huge-volume ... capacity, Safe and Reliable, Stable Performance, Long standby Time.B. Built-in PCM Triple Protection, Prevent to over- ... charge, over-put, over-current.C. Built-in valve prevent the core form explosion, make sure the ... power, standby time is aldo short. Long Lasting Splendid Power Mobile Battery