Compatible with Samsung D828. High quality and rechrageable high-capacity lithium battery core, secure, reliable, stable performance, ultra-high capacity, long standby time. Use of high-quality batteries, consisting of a double precision IC protection circuits carefully manufactured. With a safe, reliable, stable performance, high capacity, standby time plant, recycling ordered long features. Do not contain mercury, cadmium and other harmful substances, in full compliance with national and EU environmental requirements. Battery capacity: 880mAh.