Re: New SL ProPoly 4aa: should I use a dummy batte
What everyone else said goes double for me!
Yes, very early on in the production of this light, one person on CPF distroyed a Streamlight 4AA LED by using 4 Lithium batteries, by loading 4 new lithium batteries and leaving the light on for several hours. The heat damaged the light.
There have been improvements and upgrades to the light since then, by Streamlight.
Streamlight also warrantees the light for ever, so if it should get heat damaged, just send it back to them.
Just FYI, I have one of the earlier models of this light, and have used it for hours at a time, with no problems. I use only Alkaline batteries in mine.