What driver/batts should I use.

Im working on a new host that I found at Lowes and it runs on 3 AAA size batteries. I want to use a 6x diode, but Im not sure what driver and battery combo I should use. I was thinking a Flex with 3 rechargeable nimh AAA's, or a rckstr with 2 10440's. I need some help with this.

Pete

I found out that the host has a built-in v-reg that I will be able to use. It puts out 3.8v with an input voltage of 4.5v from 3 standard alkaline AAA's, 3 recharghable nimh's or 2 3.6v 10440's. But with the 10440's the v-reg gets hot quick so Im going to use standard batts.

To drive a laser diode, you need to regulate the current; the voltage regulator in your host probably isn't set up to regulate current.

Are you talking about the host that I build heatsinks for? If so i built mine last week and it worked out great. I used a flexdrive and the 3 aaa batteries. I have a few pictures in my photos.