what's the difference here?..

Hello everyone , I have an elzetta bravo and alpha, and to power it, I have some energiser CR123A 3.0v Lithium batteries and had some nitecore 650mah ICR 3.7v batteries.

which would be the best batteries in these lights for brightness more than runtime?.
is there any big difference in brightness initially?.

I know it’s 3.0v Vs 3.7v, but is that a big jump?.

I’m not sure what driver the elzetta’s have, and what’s their cut out with rechargeables.

Thanks everybody.

http://www.elzetta.com/faqflashlights

Looks complicated. Single cell lights don’t have the problems that occur with multiple batteries in series.

Oh, they do have a contacts
Phone: (859) 707-7471
Fax: (859) 918-0465
and an email address for asking: info@elzetta.com

Thanks, is there much difference in brightness say in the first 15 minutes?.’

Thanks.

Unlikely, but this would depend on the driver.

For the record, the rechargeable batteries you have are actually 4.2v with a nominal voltage of 3.7v

This means, when you load two in series, you have 8.4v vs 6.0v for 2x CR123a’s.

This could mean the difference between working and burning out the driver, if the driver can’t handle the voltage. So you need to be sure it can work on 8.4v

Now there are other types of rechargeable RCR’s, instead of Li-ion which are the 4.2v ones, there are LifePo4 ones, these have a nominal voltage of 3.0v and are ideal for direct replacements of primary CR123a’s. You need a special charger to charge these however and they typically have a lower capacity than the higher voltage Li-ion counterparts.

As for brightness. Well pretty much all LED torches use a driver. So the driver will regulate the current to the LED. Higher input voltage does not automatically mean more output. It may mean flatter regulation, but without seeing an output plot of the torch working, it is very hard to say. My hunch is, RCR’s will give the same performance pretty much with a lower runtime. But of course you only need to recharge them to use them again.

I’m not familiar with the torches you mention, but are they p60’s? As in, use a p60 drop-in module? If so, then you really need to know exactly what the p60 is to find out what it’s rated voltage range is. And if you want to run a specific battery, then look for an alternative.

I know the Elzetta hosts are meant to be high quality, certainly highly priced and the guys over at CPF cream themselves over them. But if you want high output and flat regulation, then there are other torches to consider. And ones that don’t cost as much.

For example, something like this:
http://www.solarforceflashlight-sales.com/product_detail.php?t=FB&s=7&id=354

With ones of these:
http://intl-outdoor.com/p60-dropin-module-cuxm2-xml2-p-740.html

And a purple Efest 18650 3100mAh battery (ebay).

And I think you’d be might impressed.

Everyday is wippy dip de da do it naked day in the U.S. don’t you watch the news? :bigsmile:

some phrases dont translate well… but, if anyone wants me to take a STAB at attempting a translation? i am game to try it…

but i live in small town here in america? we JUST had a long weekend drinking holiday… judging by all the drunken nonsense i observed all weekend? i can about guarantee some drunken fool sprayed whipped creme all over themselves and ran down the streets naked… in a small town in america? Its not something you see EVERY day, but, it doesnt AMAZE you when you finally SEE it happening…

cat gods? Uh, yeah, i could see that (i have a cat, lol)

its not so much I “own” a cat? Its more like the cat lives here, and it doesnt seem to mind me staying here, LMAO

I run several different 3.7 volt cells in my Alpha no problem. They seem to have a shorter runtime than their Lithium primary cousins.
I also have some 3.0volt RCR123 Soshine cells that perform nicely. You can use these in the 3 cell lights.

Thanks so would the elzetta bravo 2 cell, and alpha 1 cell driver be able to handle these nitecore 650mah ICR123A 3.7v NL166 batteries?.

Thanks