... temperature, and so on.3. Green power, ST battery is free of Pb, Cd, Hg, Cr6+, PBB and PBDE, they are ... wide temperature range 0 degree to 40 degree; specially designed battery used in high or low temperature.8. No memory ... they can be charged at any stage, economically and conveniently.9. Handling performance, maintenance-free and wide application. F13000mah 24v ni-mh rechargeable battery pack