Maelstrom X10 with King Kong makes noise

After waiting for 5 weeks for the delivery of my new King Kong 26650 yesterday my X10 was powered up for the first time properly (before that I just tested it with an 18650 for some seconds). LOVE IT! My new EDC and it's better then expected. Beast!

BUT it makes a high pitch noise, similar to Gen. 1 night vision devices.

I don't mind the noise itself since you can barely hear it but is it dangerous?

I only have one 26650 cell so I can't test the light with anything else. What are your opinions on this?

Does it do it with a good 18650 in it?

I just checked and no it doesn't, but I only have Trustfire flames right now, half charged, no proper battery to compare it except one unused Panasonic 3100 that I don't own any compatible light for right now. Should I charge it extra to see the result?

I've also noticed that the noise got quieter since yesterday which I assume is connected that I used the light a lot last night and the cell is less charged (I assume 60-70% now).

The King Kong was fresh and I charged it with this thing here:

http://www.intl-outdoor.com/16340-to-32650-liion-battery-charger-p-306.html

It arrived, I put it into the charger and took it out when the red light started flickering (let's say 20mins. after the rapid flickering began). I don't know if the light is supposed to turn green or the red flickering indicated the end of the charging cycle.

I should have ordered the TR005 but was stupid and curious about the cheaper version and in the end I ended up getting only the cheapo.

And unfortunately I don't have a Voltmeter either at the moment.

On my Xtar, red flickering means the cell is not charging correctly. I believe you should see green when properly charged. Maybe you should test that theory with an 18650 battery? What type and capacity was the 18650 you used in the light?

I'd also check the KK with a multimeter if you have one.

I updated the previous post now.

I don't know if I should be worried or not, finally I decided to write in here.

The light runs beautifully, I just don't want a King Kong pipe bomb as new EDC.

Its fine. Every 4sevens light I've ever had whines, including that one. It varies with the voltage.

EDIT: I mentioned it in the FS thread

Ohhhhhh, that REALLY helped me! No more pipe bomb for me then, but BEST EDC E-V-E-R !!!

Thanks for the quick reply, really appreciate it!

I use mine exclusively with KKs, and no whine here.

Best buy of the season, on sale.

Actually I'd even go that far that this is my favorite flashlight ever. Since the 2 days I was able to use it we became a real team^^

With my lights, those with 7135 drivers will whine on mid mode-if the batteries are loose, don't have enough spring tension, or contacts are dirty. With clean contact points I get no whine at all, so you might wanna check/clean.

Rich