Electrical Question

[dickturpin]

Just rigging up a 12v 5w bulb/holder onto a cigar lighter plug so I can have some evening light when camping. The question is how long dare I run it off a fully charged battery and still expect the bike to start the next morning?


Thanks


D

[karlo]

Surely you would be better running LED's, I use longer versions of these in the car

http://www.ebay.co.uk/itm/Waterproof-24cm-LED-Flexible-Strip-for-Cars-Motorcycles-Lighting-White-/190698507372?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2c66844c6c

Nice and bright

[Fazerider]

With a perfectly healthy battery of 14AHr and regarding 50% as a reasonable amount of the available energy to use then it would supply 5 watts for nearly 17 hours.

[AdieR]

Don't know if it helps, but I've got a 12v cig lighter socket, with a built in LED (blue), few quid from Halfords.

[dickturpin]

Good suggestion on the LED strips....I do have a single battery powered LED but the multi LED strip is worth a punt, ready for next trip!

[alan sherman]

Can't you buy a rechargeable camping light that you charge when running the bike during the day?  It'd be safer to have that gap between light and motion!

[Andy FZS]

I bought a re-chargable (240v and 12v) LED inspection lamp from Lidl but have seen similar on Ebay I would think that would work well without the fear of a flat battery.
Andy

[Lazarus]

or you get the wind up camping lanterns/torches - i know its a PITA winding them up but you only get the light when you need it

[goldfazer]

I've flattened my battery by running the hazards for a bit, so I wouldn't recommend it !

[FuZzBoM]

Just get a AA maglite. they are really small and have a "candle" mode.
Then no fear of a flat battery 

[sadlonelygit]

I've flattened my battery by running the hazards for a bit, so I wouldn't recommend it !

bit of a difference between running 84w and 5w (or 1w if led)