U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Science and Technology
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
 
 
Old 11-02-2014, 05:51 PM
 
Location: The edge of the world and all of Western civilization
877 posts, read 820,075 times
Reputation: 1279

Advertisements

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?

Amazon.com: AUDIO SOLUTIONS AS-RGB5MK RGB 5050 LED Strip Kit (16.4ft): Electronics
Quick reply to this message

 
Old 11-02-2014, 06:12 PM
 
Location: Somewhere in northern Alabama
16,841 posts, read 51,286,023 times
Reputation: 27653
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.
Quick reply to this message
 
Old 11-02-2014, 06:54 PM
 
Location: The edge of the world and all of Western civilization
877 posts, read 820,075 times
Reputation: 1279
Quote:
Originally Posted by harry chickpea View Post
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.

Products | Audio Solutions
Quick reply to this message
 
Old 11-02-2014, 11:32 PM
 
26,885 posts, read 38,123,724 times
Reputation: 34822
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
Quick reply to this message
 
Old 11-03-2014, 05:41 AM
 
Location: The edge of the world and all of Western civilization
877 posts, read 820,075 times
Reputation: 1279
Quote:
Originally Posted by Tek_Freek View Post
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.
Quick reply to this message
 
Old 11-03-2014, 09:00 AM
 
Location: Somewhere in northern Alabama
16,841 posts, read 51,286,023 times
Reputation: 27653
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."

Quick reply to this message
 
Old 12-04-2014, 06:46 PM
 
Location: The Island of Misfit Toys
2,767 posts, read 2,189,831 times
Reputation: 2341
I set up left and right signal indicators on my bike handlebars using solar powered dog collars.

Amazon.com : Dogs in Play Orange Solar Powered LED Lighted Dog Collar-Small - Environmentally Friendly, Powered by the Sun or Recharge on Your Computer....USB Cord Included! : Pet Collars : Pet Supplies

The solar battery doesn't last as long as advertised so I rigged a small pouch with a USB battery charger.
Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


 
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:
Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Science and Technology
Follow City-Data.com founder on our Forum or

All times are GMT -6.

2005-2018, Advameg, Inc.

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top