Table: battery_types
Columns: type
zinc_carbon
alkaline
li_fes_2
nicd
nimh

Question: What is NiCd, when Type is "Capacity under 500mA constant Drain"?
SQL: SELECT "nicd" FROM battery_types WHERE "type" = 'capacity under 500ma constant drain'

Question: What is Li-FeS 2, when Type is Nominal Voltage?
SQL: SELECT "li_fes_2" FROM battery_types WHERE "type" = 'nominal voltage'