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Help with powering 5.5 feet of 12V 3528 LED strip Answered

Hi! I need help with powering 5.5 feet (~1.67 meters) of 12V DC, 60 LED/meter, 4.8W/meter, 0.4A/meter LED strip.
It also comes with a DC connector.

Link to product:
http://www.amazon.com/OPOWAY-Flexible-Strip-Light-Ribbon/dp/B007SE2MM0/ref=sr_1_103?ie=UTF8&qid=1372054019&sr=8-103&keywords=led+strip+lighting+warm

I would like to run the strip for at least 4 hours before replacing the batteries.  
How can I power this? (preferably using battery packs with NiMH batteries or cheap lithium batteries)
I'm also open to using my laptop battery for the day if it is a good alternative. 


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ss3000
ss3000

7 years ago

Where did 2A come from? Description says the string draws 400mA per m and at 1.67m we could round it up to 700mA. Now we figure for 4 hours we would need 2800mAh, to be safe I would go for 3000. And a quick search gets us.
http://www.hobbyking.com/hobbyking/store/__7655__rhino_4000mah_3s2p_25c_lipoly_pack.html

http://www.amainhobbies.com/product_info.php/cPath/1389_1392_1859/products_id/115711/n/Venom-Power-6-Cell-NiMH-Battery-w-Universal-Connector-72V-3300mAh

The lipo is a bit cheaper but you might be able to find a cheaper nimh. This also depends on what you have a charger for. You can't charge a lipo unless the charger is made for lipos, you could ruin the pack or set something on fire if the pack overheats and bursts.

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mpilchfamily
mpilchfamily

7 years ago

The strip will require 2A to run it. I suggest you use a small car battery.

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squkyshoes
squkyshoes

Reply 7 years ago

Is there any way to do this with something thinner? Batteries in series or something?

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steveastrouk
steveastrouk

Reply 7 years ago

A Li-po battery will be a good fit for this project..

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mpilchfamily
mpilchfamily

Reply 7 years ago

Still need to be a fairly large battery to run it for 4 hours, which won't be cheap.

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steveastrouk
steveastrouk

Reply 7 years ago

100 USD via Ebay
http://www.ebay.co.uk/itm/Tracer-12v-8Ah-lithium-polymer-power-pack-/251295142095#vi-content

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mpilchfamily
mpilchfamily

Reply 7 years ago

A 2A load on any battery is a big load. Your going to need a big battery if you want to run the lights for 2 hours.

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iloveandroid
iloveandroid

7 years ago

the strip require 12v supply with 0.668A so I would suggest go with 8 pen cells or 2 9v battery in series.