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Location: The edge of the world and all of Western civilization
984 posts, read 1,191,636 times
Reputation: 1691
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I hope someone can help me, because I can't find a solution to a problem. I've posted a link below to a strip of LEDs, and I really like its length and color options. However, I need them to be portable and I can't seem to find a way to power them on the go. I've found a lot of portable power supplies that seem to be for cell phones only. Other batteries seem to work, but they're too heavy and bulky. Before I buy it, does anyone know of a way to power these for 3-4 hours (maybe more) without an outlet?
It looks like it needs about 4 amps @ 12 volts, which is substantial for a small battery. To avoid killing a lead-acid cell, the MAXIMUM discharge has to be less than 50% of total capacity (preferably MUCH less), so you need at least 30 or 40 Ah. Garden tractor battery might fit the bill. Without actual measurements, it is hard to do more than generalize.
Location: The edge of the world and all of Western civilization
984 posts, read 1,191,636 times
Reputation: 1691
Quote:
Originally Posted by harry chickpea
It looks like it needs about 4 amps @ 12 volts, which is substantial for a small battery. To avoid killing a lead-acid cell, the MAXIMUM discharge has to be less than 50% of total capacity (preferably MUCH less), so you need at least 30 or 40 Ah. Garden tractor battery might fit the bill. Without actual measurements, it is hard to do more than generalize.
Thanks for the reply. I found their original website, but it's still lacking in power information. I put the link below anyway. I wonder if I should scrap the idea and go for LED strips designed to be portable, like wearable lights.
I'd say it can be done because I saw a young woman with two strips woven into her hair last night. They were blinking for at least an hour and were 18 to 20 inches long.
And they were annoying as hell. Of course they were not in her line of sight so everyone but her was irritated by them
Location: The edge of the world and all of Western civilization
984 posts, read 1,191,636 times
Reputation: 1691
Quote:
Originally Posted by Tek_Freek
I'd say it can be done because I saw a young woman with two strips woven into her hair last night. They were blinking for at least an hour and were 18 to 20 inches long.
And they were annoying as hell. Of course they were not in her line of sight so everyone but her was irritated by them
I think I may need to go that route, because those come with a power pack and are designed for portability. I like that other strip because of the color options and the others seem to be one color only.
There is a big difference in the number of lights on a 16 foot strip and a 16 inch one. I do like the idea of using an annoying woman to act as a carrier though. In a saner world, I can see a judge passing out a sentence: "You have been determined by a jury of your peers to be annoying. I sentence you to wearing blinking LED lights in your hair as a warning to those who might approach you."
The solar battery doesn't last as long as advertised so I rigged a small pouch with a USB battery charger.
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