Battery in 2017 with tow package - Canada

In Canada all the 4x4 doublecab models come with the tow package. This includes hitch, bigger alternator, oil/trans cooler, 2 types of pins etc...plus a "heavy duty battery". So I looked and my battery is a group 24F, 582 cold cranking amps. That doesn't sound like heavy duty to me. Anyone in Canada get a 4x4 doublecab with a bigger battery on delivery?

 

They dont do heavy duty battery on 3rd gen, only 2nd gen, which had a 27f battery.

 

Throw in a 31M. Done and it's heavy duty.

 

Yes, I can always upgrade, but it bugs me they advertise on the website saying "heavy duty" is standard.

 

If you go into your average hardware store, half the cheap Chinese junk tools are labelled "Heavy Duty". I really wish that term would go away, as it it useless as a gauge of anything.