Originally Posted by IluvSQ

From this:
400 peak amps suitable for single battery engines up to 6.0L in cars, trucks, boats, RVs, motorcycles, ATVs, lawn

and this:

•Lithium ion cells and batteries up to 100 Watt Hours (Wh) each◦The following are permitted in carry-on baggage only*: ■Consumer electronic devices containing accepted lithium ion cells or batteries with a rating of not more than 100 Wh each;
■Spare lithium ion cells or batteries with a rating of not more than 100 Wh each.



•Lithium ion batteries with a rating of 100 but not exceeding 160 Watt Hours (Wh)◦A maximum of two (2) individually protected spare lithium ion batteries with a rating of 100 Wh but not exceeding 160 Wh may be carried per passenger in carry-on baggage only*, pending approval by Air Canada airport agents.

I am guessing they are not permitted either checked or carry-on