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Opened the box, looked over the tri fold instruction sheet. Put in a charged AW 18350 that I had and it lights up Sigelei. I had a heck of a time getting the 5 clicks to turn it on. Now I can't seem to turn it off. Fast or slow clicking just goes through the menu.
I couldn't figure out which bottom cap is for what. I used the short cap but it seems to get very warm in use. I want to use the 18490s tomorrow.
Otherwise, looks nice, works well.
Edit to add: Instruction sheet is for V3. I see the on/off menu. I guess you can turn it on but not off.
Five rapid clicks is only used during start-up, not to turn off.
After inserting a freshly charged battery the word
SIGELEI appears on the display and eventually goes out. Now is the time to do five rapid clicks which turns the system on. After five rapid clicks the word
SIGELEI appears on the screen again, goes out and the words
System:ON scrolls by one time. After this, the Sigelei is powered up and the system is on.
After you have the system turned on using five rapid clicks will not turn the Sigelei off. If you want to turn a Sigelei off use Menu Item #1 to disable or enable the firing function as thayamax described. This is the safe pocket carry function. Once the system is up and running you can turn the Sigelei system off only one way: by removing the battery cap for a few seconds.
If you use five rapid clicks on the Sigelei with the system turned on all you are going to get is Menu Item #3.
Many Sigelei V3/V5 vendors give you two battery cap sizes to choose from. This is a good thing. One is 10mm tall and the other is 15mm tall. All the short cap is good for is giving you the smallest length V3 or V5 (100mm) when using a single 18350. It also provides the best battery spring contact for single 18350. For all other battery sizes (18490, 18500, 18650 and 2x18350) the tall caps works just as well and is easier to get threaded onto the battery tube.