Hey there - long time reader, first time poster
I just discovered the Sidewinder Compact II and I really want it - only thing is that you are not supposed to use rechargeables with it (or any streamlight) and I only use eneloop pros for my flashlights (mostly fenix).
Streamlight cs told me that they did not test it with eneloops and that rechargeables may harm the light, render it useless or even cause a fire.
Did you have any issues with your Sidewinder using eneloops and can you fully use the light and all its modes with them (not talking about output, just whether you can turn it on max without killing the light)
Wow, that is a big BS statement from Streamlight if they said it. I've almost exclusively been running the two sidewinders and this compact model on Eneloops. Fully functional with no issues.
The only minor issue I had with the Compact II was when I popped an RCR123 in it. It did not really like the 4.2V, but still worked.
The major difference with NiMh cells is the lower internal resistance and correlating ability to deliver high current. None of the Sidewinders seem that greedy and the output doesn't run away due to the lower internal resistance. I avoid Alkaleaks whenever I can (only some Intrinsically Safe lights I have require them to be IS certified).
Nine years later and still, quite possibly, the only AA capable headlamp out there with red (or green) color function. I have two of the Aviator model.
I really hate AAA option, and not just that but triple AAA batteries required!