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Dirt Bike Brands - Other
lighting on a 2-stroke
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[QUOTE="BSWIFT, post: 1145329, member: 16802"] The length of time that a charge will last on a battery is determined by the wattage of the lights you are running. A 35 watt 12 volt bulb will draw about 3 amps. I'll see if I can plug into the formula for how long it would last. A 7 ah battery is roughly 7"x3"x4" in dimensions. These batteries are used for commercial and residential alarm systems as well as UPS backup power supplies. Most any alarm company could sell you everything that you need. They also make smaller size batteries in a 4 ah rating. The "ah" stands for "amp hour" rating. Rough calculations using a 35W bulb and a 7 ah battery would yeild about 3 hours of continuous light. These batteries are usually good for about 5 years unless they are completely discharged. If they are charged when they have at least 20% left, they will recharge fully and continue to give good service. I'll try to take a pic of what you would need and post it later. I buy these batteries and power supply/chargers all the time but I get them at whole sale distributors. Finding the power supply/charger that I have specified at a retail store is not likely but any 12 volt DC charger should work. The prices will vary considerably however. The recharge time from 20% charge to full charge will be about 4 hours and there is no need to remove the charger from the battery when not in use, the power supply/charger is designed not to overcharge the battery. If you opt for the smaller 4 ah battery, you could buy 2 and and either change them out as needed or parallel them to have 8 ah of battery power. There are also Nickle medal hydride batteries that are smaller in size but higher in price. The batteries that I use are gel cell, sealed batteries with spade lug connections. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
lighting on a 2-stroke
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