My boost converter not working

[Yameenneemay]

I got the xl6009e1 boost converter, gave an input of 13v from an lead acid battery, when I check output for voltage, it output is between 14 and 200 mV or milli volts. Why is it so?

 

[Nigel Goodwin]

Have you connected it wrongly?, even just briefly, doing so would probably instantly kill it.

I'm presuming it's a ready built module?.

 

[ronsimpson]

Something is really wrong. The output should be very close to 13V at a minimum. There is a diode from input to output so the output will be pulled up to almost the input (even if the IC is dead).