Using 2, CR123 batteries with a dual FlexDrive v5?

Hey guys! I recently bought a 1.9W Guidesman from weidmark here on the forums(dual flexdrive's). It takes a 18650, and I'm convinced that it can take 2 CR123 batteries stacked on top of each-other instead. The flexdrive is advertised on dr lava's page as able to take 6v into it. With the cr123's being 3v each, 2 should work just fine....plus with this using 2 flexdrive, does this split any difference in the voltage? or is 6v still 6v even split between 2 drivers?

Thanks guys!

Spartan X said:

Hey guys! I recently bought a 1.9W Guidesman from weidmark here on the forums(dual flexdrive's). It takes a 18650, and I'm convinced that it can take 2 CR123 batteries stacked on top of each-other instead. The flexdrive is advertised on dr lava's page as able to take 6v into it. With the cr123's being 3v each, 2 should work just fine....plus with this using 2 flexdrive, does this split any difference in the voltage? or is 6v still 6v even split between 2 drivers?

Thanks guys!

Click to expand...

It does say that on the product details page but in the manual it says 5.5V and I did ask drlava and he said not to exceed 5.5V.:beer:

http://laserpointerforums.com/f52/5...uild-absolutely-awesome-54380.html#post766058

Darn :-(

so thats were he got the 5.5v number from

Yeah not worth risking the boards

I'll just have to wait till the charger comes in the mail.

ya you will burn out the driver in a day
stupid me found out the hard way

You can drop the voltage of the batteries by adding a diode in series with the drivers.

I'd wait for the charger personally. If you have the original battery holder from the guidesman host you can put 3xAAA (4.5v) in it. I used that with rechargeable AAAs (4.2v) until my 18650s arrived.

But for future reference....

If you're using 2 primary 3v lithium batteries with a maximum 3.2v capacity you can put 1N4001 diode in series with batt + to drop the voltage to a safe level according to the manual. If you're using 2 rechargeable 3v with a max charge of 3.6v each two 1N4001 diodes in series would drop it to ~5.8v which might be safe but I'd talk to DrLava first. You may have to use a different diode to get the right voltage drop to give you a safe input voltage.