Cr2 batteries

[lnlghost1]

Can anyone tell me a more popular and cheaper battery to replace a cr2 battery in a 200 mw green laser?

 

[StardustSprinkles]

That's the trouble, I don't think anyone has a substitute for the cr2.

 

[lnlghost1]

ah dang well do you know good quality cr2's that are cheap?

 

[agravlin]

There aren't any. The only RCR2's you find anywhere are cheap Chinese crap. It's sad, really, that the mainstream companies aren't making these.

 

[lnlghost1]

wow that sucks thanks for the answer

 

[StardustSprinkles]

Ya, my rechargeable cr2's are like 600mah, it's kinda depressing when my aquarius dims out in mid-use...

 

[Lonewolf]

These are not bad ----> Juice Brand Rechargeable Photo Lithium CR2 Batteries - eBay (item 120494041609 end time Aug-13-10 10:59:07 PDT)

 

[lnlghost1]

im just wondering how to i findout how much voltage my laser can take? i found some 3.5v cr2s and i just wanna know if my laser can handle it


PS: i dont have any equipment to check

 

[Mohrenberg]

These are not bad ----> Juice Brand Rechargeable Photo Lithium CR2 Batteries - eBay (item 120494041609 end time Aug-13-10 10:59:07 PDT)

I personally love these little guys. I've got like 10 scattered around the house.....it's an awesome buy for $1 ea.

Edit: Well, they use to be $1 ea.

 

[pasleyt]

Might be expensive, but it is a reliable strong battery in my opinion, especially the energizers.

 

[bobhaha]

I personally love these little guys. I've got like 10 scattered around the house.....it's an awesome buy for $1 ea.

Edit: Well, they use to be $1 ea.

Do you know the mah rating on those Juice batteries in the ebay link? Do you have the same ones? Can they be charged on the same charger as the 18650 or cr123 batteries?

Thanks for your time!

 

[Lonewolf]

Do you know the mah rating on those Juice batteries in the ebay link? Do you have the same ones? Can they be charged on the same charger as the 18650 or cr123 batteries?

Thanks for your time!

Those are the ones I use, not sure on the mah....they work fine with my 3045/LOC build, I just built a 3045/445 using a groove2....seems to work well, but I keep duty cycles short <30 seconds (so far). I charge them on a Ultrafire WF-139 using home made spacers. The pic below is the 3045/LOC....the 445 looks the same.