I just saw this in the news today. I'm not sure if this is the appropriate spot to post this, but from the link to the CBC site, I can see generic blue batteries similar to the ones I use. Please use your discretion to delete or move this post as you require.
Battery says 9.6V, so I want to say its NiCd/MH (8 cells x1.2V). The pictures kinda look like Sub-C cells. I'm willing to bet it uses a trickle charger like all of the cheap handheld vacuums I've owned have...