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General => General => Topic started by: dickturpin on 29 August 2012, 10:11:57 pm

Title: Electrical Question
Post by: dickturpin on 29 August 2012, 10:11:57 pm: 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
Title: Re: Electrical Question
Post by: karlo on 29 August 2012, 10:30:53 pm: 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 (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
Title: Re: Electrical Question
Post by: Fazerider on 29 August 2012, 10:35:36 pm: 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.
Title: Re: Electrical Question
Post by: AdieR on 30 August 2012, 12:00:50 am: 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.
Title: Re: Electrical Question
Post by: dickturpin on 30 August 2012, 09:19:36 am: 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! :D
Title: Re: Electrical Question
Post by: alan sherman on 30 August 2012, 10:11:01 am: 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!
Title: Re: Electrical Question
Post by: Andy FZS on 30 August 2012, 10:15:50 am: 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 :)
Title: Re: Electrical Question
Post by: Lazarus on 30 August 2012, 11:13:33 am: 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
Title: Re: Electrical Question
Post by: goldfazer on 31 August 2012, 09:25:59 am: I've flattened my battery by running the hazards for a bit, so I wouldn't recommend it !
Title: Re: Electrical Question
Post by: FuZzBoM on 02 September 2012, 08:47:38 am: Just get a AA maglite. they are really small and have a "candle" mode.
Then no fear of a flat battery :D
(http://g-ecx.images-amazon.com/images/G/01/th/content_26/Q3_2009/c26-MAGLITE-B00002N6SN-1-lg.jpg)
Title: Re: Electrical Question
Post by: sadlonelygit on 02 September 2012, 10:09:22 pm: Quote from: goldfazer on 31 August 2012, 09:25:59 am
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)