Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_23 ( nicd VARCHAR, type VARCHAR )

### Question ###
What is NiCd, when Type is 'Capacity under 500mA constant Drain'?

### Accurate SQL ###

SELECT nicd FROM table_name_23 WHERE type = "capacity under 500ma constant drain"