Model number: R6P/SUM-3/AA  1. 1.5V, super heavy duty greenergy metal jacket battery 2. Certified by SGS for 0.00% Mercury & Cadmium, meet European environmental friendly standard (98/101/EC )  3. stable performance , long service life and enhanced power 4.Excellent power retention and long shelf time.  5.Superior leakage resistance 6. Outstanding temperature characteristic.