Does this seem any good?

[Jonathan A]

I'm thinking of getting this:
https://www.maplin.co.uk/volcanic-heat-heated-fleece-vest-large-854445

has anyone had experience of using something like this on a bike?

It is 9 volt, so I suppose I could power it from the bike somehow? :S

[cbrtrxtdmvfrD...]

40 degree's in 5 minutes that's some serious heat there, i'll tell you what i'd try anything once, what we need is someone to buy one and give an honest opinion
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Right' O

[Rigga]

Mmm, wonder how long the batteries last if you used it often. Are there any reviews on the maplin website?
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Current bike: Honda CBR 1100xx

[ukdiceman]

[Aff]

These were going for £7 last week from Maplin, I missed out so now won't buy one on principle.
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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[Rogerborg]

[Aff]

They will have probably aimed for about 5A at the 9v.

45W seems about right for the initial warm up.

So running that same resistance circuit at 14.4V gives you 8A.

:edit: looking at specs for other heated items of clothing, they do seem to aim for about 50W from a vest and about 80W for a jacket.
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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[ukdiceman]

A couple more to try...... If you can trust the Chinese!

9v @ 5A
https://www.ebay.co.uk/itm/K1BO-12V-24V-Step-Down-to-9V-5A-DC-DC-Buck-Converter-Regulator-Power-Module-/251334982141?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item3a84bb79fd

6A
https://www.ebay.co.uk/itm/30W-DC-DC-Converter-Regulator-Step-down-6A-Input-10V-15V-Output-0-9V-12V-/150787943823?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item231ba96d8f

Good luck!
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FZ6 Fazer

[Aff]

You could always just stick something like this in and put it somewhere where it isn't going to melt a hole through your body.
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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[Jonathan A]

Right, i'll buy one of Maplin's vests, and then when I think that my nipples are ready, buy some of China's finest, which I will wire into a cigarette lighter plug, to fit into my socket

[fw750x]

Hi Jonathan i bought one of these from Maplins "May not be the exact " same one" a couple of years ago.Worn with a tee shirt underneath it and a fleece over the top.The heat was hardly noticable,I then tried it without the tee shirt only a fleece on top,It was uncomfortable too warm.The battery pack with the on off switch was in an inside pocket of the vest which had to be opened to either turn on or off resulting in any heat gained being lost.You would be better investing in Good quality Thermals .Francis

[Ribenapigeon]

I'm sticking with Bovril to keep me warm.