Old 06-17-2012, 10:20 PM #1
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Default Right mAh batteries?!?!!!

ok the diode and driver i have say it works best at 1.25A

now the batteries i have are 18650 3.7v li-ion batteries, the trustfire brand at a capacity of 3000mAh... so if 3000mAh is 3A its too powerful... buts thats just the capacity right?

How many mAh are my 18650 3000mAh batteries actually giving off so i know how many to use for my laser?

APPRECIATE IT!!!!!

-BRANDON


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Old 06-17-2012, 10:23 PM #2
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Default Re: Right mAh batteries?!?!!!

Think of it like a gas tank.

Whether you have a ten or twenty gallon (mAh) gas tank, your engine (laser driver) is going to produce the same amount of power.

Trevor

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Old 06-17-2012, 10:25 PM #3
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Default Re: Right mAh batteries?!?!!!

3000mAh =/= 3A

It means the battery can deliver 3A during 1 hour hence 3000mAh=3Ah=3A per hour.
Or 1A for 3 hours or .5A for 6 hours but you get the point.

I don't thrust the capacity on any ***fire battery. You are lucky to get the half of it.
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Old 06-17-2012, 10:39 PM #4
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Default Re: Right mAh batteries?!?!!!

so for a 1W laser would i use 2 batteries for power or just 1 ?
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Old 06-17-2012, 10:46 PM #5
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Default Re: Right mAh batteries?!?!!!

Quote:
Originally Posted by brandp View Post
so for a 1W laser would i use 2 batteries for power or just 1 ?
What driver is it ? A linear driver needs two 3.7 li-ion batteries.
You may read this thread, http://laserpointerforums.com/f67/ho...ead-71513.html
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Old 06-18-2012, 06:26 AM #6
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Default Re: Right mAh batteries?!?!!!

It is this driver, here's the link:


445-450nm 0.3-1W Laser Diode Drive | eBay

That's the driver i have
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Old 06-18-2012, 07:58 AM #7
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Default Re: Right mAh batteries?!?!!!

That driver is a boost. You need only one 3.7 li-ion cell. Any mAh cell will do. More capacity means more runtime.
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