Gaz_1989 9,539 Posted May 22, 2012 Report Share Posted May 22, 2012 Can anyone tell me how long a 12v 9ah battery will power a 5 watt LED light for? Thanks Gaz Quote Link to post Share on other sites
scothunter 12,609 Posted May 22, 2012 Report Share Posted May 22, 2012 Oh I don't know exactly, but a a good while Quote Link to post Share on other sites
StevoSmith 147 Posted May 22, 2012 Report Share Posted May 22, 2012 Good few hours i would have thought mate Quote Link to post Share on other sites
Lab 10,979 Posted May 22, 2012 Report Share Posted May 22, 2012 Oh I don't know exactly, but a a good while Carol Vorderman will be shitting herself with that answer eh?............ 2 Quote Link to post Share on other sites
StevoSmith 147 Posted May 22, 2012 Report Share Posted May 22, 2012 Oh I don't know exactly, but a a good while Carol Vorderman will be shitting herself with that answer eh?............ Quote Link to post Share on other sites
paulus 26 Posted May 22, 2012 Report Share Posted May 22, 2012 the answers on your other thread :thumbs:but the answer is 9 hrs and heres a calculator http://www.alternate-energy.net/calcbat06-2.html Quote Link to post Share on other sites
baw 4,360 Posted May 22, 2012 Report Share Posted May 22, 2012 20 hours I reckon Quote Link to post Share on other sites
reddawn 2,173 Posted May 22, 2012 Report Share Posted May 22, 2012 do ye mean that lithium battery on other thread??? Quote Link to post Share on other sites
paulus 26 Posted May 22, 2012 Report Share Posted May 22, 2012 Quote Link to post Share on other sites
Born Hunter 17,974 Posted May 22, 2012 Report Share Posted May 22, 2012 the answers on your other thread :thumbs:but the answer is 9 hrs and heres a calculator http://www.alternate...alcbat06-2.html I'm 99% sure that calculator is wrong. The correct answer is 21.6h I believe. Quote Link to post Share on other sites
baw 4,360 Posted May 22, 2012 Report Share Posted May 22, 2012 I'm with you born hunter, about 20 hours Quote Link to post Share on other sites
paulus 26 Posted May 22, 2012 Report Share Posted May 22, 2012 the answers on your other thread :thumbs:but the answer is 9 hrs and heres a calculator http://www.alternate...alcbat06-2.html I'm 99% sure that calculator is wrong. The correct answer is 21.6h I believe. im in shock, so everything on the net is not to be trusted :laugh: Quote Link to post Share on other sites
Born Hunter 17,974 Posted May 22, 2012 Report Share Posted May 22, 2012 im in shock, so everything on the net is not to be trusted :laugh: Other than what I say of course 2 Quote Link to post Share on other sites
bullmastiff 615 Posted May 22, 2012 Report Share Posted May 22, 2012 As long as the LED light is 12volts then you should theoretically get about 21 hours from it. A lot would depend on the condition of the battery? Quote Link to post Share on other sites
Gaz_1989 9,539 Posted May 23, 2012 Author Report Share Posted May 23, 2012 Thanks for replies. Basically I wanna put a small led light in the shed and run it off a lamping battery to save running power down there. Cheers. Gaz Quote Link to post Share on other sites
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