News:

SMF - Just Installed!

Main Menu

heating blanket

Started by dee106, Nov 06, 2006, 09:48 PM

Previous topic - Next topic

mike4947

I wish they had a few specifications and I couldn't find this particular item anywhere else.
What bothered me was most 12 volt electrical blankets range from 4 amp to 12 amps. I'm sure this unit comes with a 7 amp AGM battery in the pack and they say the pack works with LED heating blankets. BUT correct me if I'm wrong, but LED's while using very little amperage do not produce any appreciable heat.

AustinBoston

Quote from: mike4947BUT correct me if I'm wrong, but LED's while using very little amperage do not produce any appreciable heat.

That depends on the LED.  Those designed to produce visible light produce almost no heat.  But there are IR (InfraRed) LED's of various wavelengths, all of which produce radiant/infrared heat (and little or no visible light).

Austin

mike4947

Good to know, but conversion of electricity to heat requires a certain amount of electricity to provide a certain number of BTU's. LED's may be more efficient but I see the old very directional effect visable light LED problem showing up in their use in electric blankets. Not to mention the moving of the leads to LED's causing problems in stationary fixtures showing up big time in flexible items like an electric blanket.
Again I'd have to have a LOT more info before considering that particular item.


zamboni

Wow.  RoadPro.

Dreadful stuff.  I bought a "12-volt Cordless Blender" with great fanfare before a trip last summer.  2-day shipping.  Charged it 24 hours.

Got to the campsite.  The blender would not even blend strawberries in tequila WITHOUT ICE.

Pull it apart.  "Battery" (huge, leightweight plastic casing hiding something tiny) is only 4.6 volts.  My cordless mini-screwdriver is 4.7 volts!  My old Black & Decker battery blender that was feeble was 8.2

*****

Looking at the PDF for the Roadpro blanket, it is only a 10-amp power pack.  It will power an 80-watt appliance for only 1.5 hours (per their chart).

Not much of a "heated" blanket.  Save your money - buy a down comforter :)