Car wouldn't start

[STAKKA]

Hi I have a 2017 Yaris, my m8 went to go out today and car was clicking fast and wouldn't start, there were no lights on i had a jump pack [wouldn't be without one] fired up first time no problems. No Battery light or any other light on but power and seatbelt light...l check to see if window on Battery indicator glass was green certainly was, checked terminal's they were realy tight also could hear no noise coming from alternator also wasn't loose...my m8 has no idea aboyt cars but ive always worked on my own...told her to take for a drive she came back started up again when she stopped a chemist ...I think myself that something was left on that wasn't a bigg thing as she was here 48hrs without driving it...she's a girly girl so I had to calm her lol ..she says the catalytic? Converter sensor  is on its way out it smells every now and then as I know  nothing about them would that drain Battery...im thinking not but I don't know...I just told her that maybe the divine was stopping you from hurting yourself by the delay...anyhelp on battery draining appreciated 

[TonyHSD]

Catalytic converter will not drain the Battery and likely not cause any bad smells. Perfect was the girly thing. 

[Yaris_Cross]

11 hours ago, STAKKA said:

my m8 has no idea aboyt cars but ive always worked on my own..

11 hours ago, STAKKA said:

she says the catalytic? Converter sensor  is on its way out it smells every now and then

If she has no idea about cars where did she get this one?

[Bernard Foy]

2 hours ago, Yaris_Cross said:

If she has no idea about cars where did she get this one?

A little knowledge is a dangerous thing 🤪😂