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Old 12-15-2012, 10:55 PM #1
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Default Good Batteries

Hey Guys,

I've got a 445nm laser. It is run on an m140 diode, and a 1.8A Mohgasm driver. So I am looking for some really good batteries that can push out 2watts +. Can someone please help me out.

P.S: I'd need a charger to go with these, and would need protected since I can't test how much charge they have.


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Old 12-15-2012, 11:06 PM #2
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Default Re: Good Batteries

Host?

Wait a minute.. Deja vu.
Multiple threads, you were warned.

Last edited by Laser Smith; 12-15-2012 at 11:08 PM.
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Old 12-15-2012, 11:09 PM #3
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Default Re: Good Batteries

Qorx;

Its a basic linear driver, input voltage need to be diode voltage + ~2v (~7.5 VDC).

Generally, you will need 2 lithium-ion batteries for a 445 laser diode at that current.

Does your laser use #18650 cells ?

If so, I have Panasonic cells and a charger available.

IMO, you don't need protected cells.

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Old 12-15-2012, 11:11 PM #4
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Default Re: Good Batteries

Atm it's was running on 2x 16340's but it fried the old drvier. So what would be best to you?
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Old 12-16-2012, 12:05 AM #5
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Default Re: Good Batteries

BUMP - Need an answer now so I can order batteries.
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Old 12-16-2012, 12:15 AM #6
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Default Re: Good Batteries

no help coming for those who double post or start muitiple threads-- you should know better--
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Old 12-16-2012, 02:40 AM #7
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Default Re: Good Batteries

Bro, no need to be a dick. I just need to sort this out and I'll be sweet.

-Qorx.
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Old 12-16-2012, 03:00 AM #8
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Default Re: Good Batteries

Try not to be a dick too. You have been previously told to compile all your questions in one thread.
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Old 12-16-2012, 03:03 AM #9
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Default Re: Good Batteries

Ok, sorry won't happen again after this topic. i promise. Now could someone please help me out?
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Old 12-16-2012, 03:13 AM #10
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Default Re: Good Batteries

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Old 12-16-2012, 06:25 AM #11
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Default Re: Good Batteries

Yeah some patience will go a long way around here. If your in a rush your in the wrong hobby/forum. If you want a quick answer to your question hit the search and read.
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Old 12-16-2012, 08:48 AM #12
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Default Re: Good Batteries

I would recommend looking for some 18350 sized batteries, which well replace 18650's for linear drivers with M140's.

One suggestion is this: UltraFire 18350 3.7V 1200mAh Batteries (Pair) - Free Shipping - DealExtreme

Yes, they are ****Fire branded but I've had nothing but decent experiences with them, and their actual capacities are about 800mAh. They really don't have problems handing 1.8A current draw, but just do monitor their voltages as they are unprotected.

Good luck!

Edit: However, if you do need protected cells, you should look into 16340 cells because they are more common and do come with protection circuits.
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Old 12-17-2012, 10:43 PM #13
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Default Re: Good Batteries

Qorx;

Since you have a linear driver . . .

you need to buy two 18340 cells.

I would never buy Ultrafire !!

Trustfire is a decent option.

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