Any 3v driver?

• Apr 21, 2011

• #1

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InMetal

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Hi guys, i've been reading a lot, almost ready to build a LM317 driver.
I've got some DVD-RW diodes.

But the LM317 driver requires 7.2 volt input, getting that from AA rechargables implies getting five of them toghether....

I was thinking, is there any 3v driver that can be built from store parts?

Thanks!

 

Last edited: Apr 21, 2011

• Apr 21, 2011

• #2

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InMetal

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Surely its been mentioned before, but i'm thinking the easiest way to get 7.2 and not going for the rechargables standar batteries is to get a couple of 3.7 cellphone batteries. Only drawback its the custom conections u gotta do.
But they r rechargable as well, quick, and really space friendly.

 

• Apr 21, 2011

• #3

bluuray

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:thinking:
just buy some 14500's...

 

• Apr 21, 2011

• #4

laserpyro

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You can use two li-ion batteries. If your thinking AAA size the Li-ion equivalent is 10440... I think.

 

• Apr 22, 2011

• #5

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InMetal

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For the price of a 14500 i get two BL 5C cellphone batteries.

Did a little research:
14500 3.6-7v 900mAh
vs
BL 5C 3.7v 850mAh (got the specs from nokia.com)

If u got a compatible charger, o even a cellphone to recharge em (thats my case) the BL 5C is the way to go.

 

Last edited: Apr 22, 2011