18650 batteries?

• Jul 3, 2010

• #1

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cod4pwns08

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So I have just completed my first 445 build with a 4171 host, and a microboost,

and I was wondering, what are the specs of the 18650 I need to be looking for and what voltage and mAh are they?

Thank you.

 

Last edited: Jul 3, 2010

• Jul 3, 2010

• #2

Tabish

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18650:
Voltage: 3.6v (4.2 fully charged)
Capacity: 2500maH advertised.

 

• Jul 3, 2010

• #3

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cod4pwns08

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Tabish said:

18650:
Voltage: 3.6v (4.2 fully charged)
Capacity: 2500maH advertised.

Click to expand...

When I buy the batteries are they 4.3 or 3.6 advertised?

 

• Jul 3, 2010

• #4

Kevlar

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Check this thread, its very useful: http://laserpointerforums.com/f44/those-you-who-use-18650s-51767.html

Lots of test done on different brands of 18650s.

 

• Jul 3, 2010

• #5

Scotty 757

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Ahh the 18650 batteries. The best in the field.

 

• Jul 3, 2010

• #6

Morgan

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Scotty 757 said:

Ahh the 18650 batteries. The best in the field.

Click to expand...

No, the best in the laser!!! :crackup:

I hope you celebrated your 445th post Scotty!

M

 

• Jul 3, 2010

• #7

Scotty 757

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Morgan said:

No, the best in the laser!!! :crackup:

I hope you celebrated your 445th post Scotty!

M

Click to expand...

Lol. I gave myself a pat on the back and said, "Good job, now you need to get yourself a 445nm laser." Which I plan to get. I am on the search for a pretty cheap one. Might get one from Flaminpyro. :drool:

 

• Jul 3, 2010

• #8

LarryDFW

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cod4pwns08;

I have built several hundred UV lights using #18650 batteries.

What I have learned, is to use "brand name" #18650 batteries only.

The failure rate of chinese clones is very high.

Cells from LG, Sanyo, Samsung, Sony, and Panasonic work reliably for long cycle counts.

Even though they are the major manufacturers of 18650 batteries,
none of them were tested in the CPF article you referenced.

For your 445nm diode you will need a hi-capacity 18650 cell.

I use 2600mah or higher in my Direct-Drive 445nm laser.

Buy Quality ...

LarryDFW

 

Last edited: Jul 14, 2010

• Jul 3, 2010

• #9

Seoul_lasers

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cod4pwns08 said:

So I have just completed my first 445 build with a 4171 host, and a microboost,

and I was wondering, what are the specs of the 18650 I need to be looking for and what voltage and mAh are they?

Thank you.

Click to expand...

They are 4.2v when they are fully charged and then drop to 3.6v. DO NOT have them drop to 3.0v or they are un-useable.

Here in ROK we have 18650s up to 2700mAh. They pack quite a wallup and are used to make batteries for high end airsoft!

 

• Jul 3, 2010

• #10

Fonduman

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i ordered a few from different sites. i now have a 2800mA, 2 2600mAs and 2 2400mAs lol. they didnt even specify what current rating they would be before i bought them, seems random. the 2400mA ones are actually probably the best quality since i got them from a UK site that specialises in flashlights. the 2600mAs came from deal extreme, the 2800 came with my laser (well, 3 weeks after the laser) from o-like.