I used an electric blanket under a water bed through an entire winter. It worked fine while turned on the entire time.
Under a bunch of batteries in a moving vehicle I would not trust. Bob Keeland On Jun 4, 2016 7:48 AM, "John Lindsay via EV" <ev@lists.evdl.org> wrote: We use them under people in Australia. Not recommended to be left on when you're in bed but folks do. John Lindsay > On 4 Jun 2016, at 9:32 PM, EVDL Administrator via EV <ev@lists.evdl.org> wrote: > >> On 3 Jun 2016 at 22:39, Bill Dennis via EV wrote: >> >> I've see Lee Hart's description of using an electric blanket under a battery >> pack for heating. Does anyone know if the controllers for these blankets will >> work with a modified sine wave inverter? That is, if the blanket's little >> control unit that allows you do adjust the heat setting and has an automatic >> shut-off timer will work if powered by a modified sine wave inverter. > > Not that I mean to answer for Lee, but - maybe. > > One issue that should be OK - assuming that the thermostat is a traditional > mechanical type - is its ability to handle your inverter's output wave. > > "Modified sine wave" inverters should really be called "modified square > wave" because they're closer to that. But the wave still crosses zero volts > 120 times a second. That's what you need for the thermostat to manage > opening without welding its contacts, which is what would probably happen if > you tried to use it on DC. > > If the blanket has some kind of electronic controller, instead of a > mechanical thermostat, then I don't know. > > I have some other concerns. One problem I see is that an electric blanket > thermostat responds to room air temperature. It cycles on and off every few > minutes or so (coarse PWM), with more on-time as the room temperature falls. > Seems to me that it'd be tough to make it hold a consistent battery > temperature, since it wouldn't be able to sense the actual battery > temperature. > > Also, the thermostat isn't designed for automotive use, where it might be > exposed to the elements and lots of vibration. > > Finally, I'd be concerned that an electric blanket isn't designed to have > weight on it, it's meant to be placed OVER a person. > > David Roden - Akron, Ohio, USA > EVDL Administrator > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > EVDL Information: http://www.evdl.org/help/ > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > Note: mail sent to "evpost" and "etpost" addresses will not > reach me. To send a private message, please obtain my > email address from the webpage http://www.evdl.org/help/ . > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA ( http://groups.yahoo.com/group/NEDRA) > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20160604/327ab677/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
