Beginners Guide to Processing 18650 Cells | Cell Database


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Laptop Powered... Laptop !?
#11
Here is another possibility: http://www.ebay.com/itm/3-5-28V-to-1-25-...SwrhBZCp0Q
Its rated for 1A, but has a maximum current of 3A, and the laptop I'd be using claims a maximum current of 1.58A.

The module from battery space can do 4A. Though, it seems to have very few components.
-Mike G
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#12
Rate at 1A means continuous use. Can do, or surge of 3A means it can only do that for a set amount of time. If you run it with a load of 1.5A, it will slowly begin to overheat and eventually burn out. You "could" put some kind of heatsink and/or fan on it, but then you're wasting power as heat.
I would go with something rated at least 20% higher than what my load needs.
Proceed with caution. Knowledge is Power! Literally! Cool 
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#13
Here's another I found. Now that I'm starting to figure out what I'm looking for:
https://smile.amazon.com/dp/B00GZHEPW6/_...WT4MN2UZBQ

This one can do 2A, and is cheaper and more versatile than the first module I posted.
-Mike G
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#14
Nope. Use this one instead:

https://m.ebay.ca/itm/DC-DC-5V-36V-to-3-...Ciid%253A1

Easily handles 4A . Just showed you the cheapest though.
It's better to over engineer something than to cheap out.
As I say: You pay once, you cry once.
                                 You pay multiple times, you are a doofus
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