What is my best option for buying or rigging a portable heated blanket or other heating source?
I drive a pedicab (bicycle rickshaw) in St. Louis. We do most of our business during the more temperate months, of course, but there are events that we work during the winter. It gets cold around here during the winter. A portable heated blanket (or possibly other heating source like seat warmers?) would be awesome for business.
Ideally it would cost less than a hundred bucks total, weigh less than 10 lbs, be rechargeable, be big enough to cover two seated people but not any bigger, last for at least 6 hours (though 2 3 hr batteries would work, too), feel sturdy/windproof, and be easily cleanable (it will encounter beer and/or body fluids sooner rather than later).
This woot deal
looks ideal (if I bought an extra battery), but it's from 2007, and the company doesn't seem to be selling these anymore.
looks like it might work, but I can't find any reviews of it anywhere, and I really don't like that the heating packs are disposable. Does anyone know how well this works? Are there reusable heat packs that would work in it as well as the disposable ones? (Sadly, I don't think there are; in my experience the reusable kind last a half hour at most.)
I could also buy a couple of rechargeable 12 volt batteries and a regular heated blanket (like this
maybe?) But how long would a battery last? And what kind of connector would I need? (Searching on "12 volt battery connector" has not been helpful thus far, but I haven't looked extensively, and I likely don't know the right terms to search for.) And what makes a good rechargeable battery? There are almost too many to choose from.
Or some other option that I'm not considering?
What would you get if you were me? What would you most like to sit on or curl up in if you were riding in a pedicab in the winter?