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_34 (points INTEGER, grid VARCHAR, time_retired VARCHAR)

### Question ###
What is the biggest points when the grid is less than 13 and the time/retired is +7.538 secs?

### Accurate SQL ###

SELECT MAX(points) FROM table_name_34 WHERE grid < 13 AND time_retired = "+7.538 secs"