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Canadian Daves JustKDX
Long time gone, but back on the 220r
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[QUOTE="reepicheep, post: 1389359, member: 104942"] For what it's worth, a 50 watt bulb will draw 3.8 amps. Batteries are rated by "amp hours", so you divide the number of watts the voltage to get the number of amps (50W / 13V), then divide the "amp hours" by the number of amps to get how many hours it will last (best case). So if you find a 7 amp hour cell (which will probably be about 7" x 3" x 2" and weigh a couple of pounds) it should run a 50 watt bulb for 1.8 hours. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Long time gone, but back on the 220r
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