[Review] ULTRATAC K18 (XP-G2 S2, 1x AAA / 1x 10440)

I believe going gear and he equip both stock these.
I got mine in SS from hk

Does anyone know if this works with unprotected Li-mn 10440’s?

I have a couple that don’t seem to work with it.

Want to give this light a try, now some questions to you guys:

1. is the K18 working with efest 10440 (350 mAh) ? Has anybody tested this combination?

2. has the K18 some kind of overdischarge protection, if battery voltage sinks under 3V? (If not, how can i avoid damaging my battery?)

3. Has anybody found a lower price than 14,95 € ? (found here)

1. Unfortunately, it doesn’t work with flat 10440 efest. Only button top batteries.

I run my K18 with efest 10440 like this, are not flat top??

Hi AAA Maniac,
Aswers:
1: yes (I got Efest 10440 V1)
2: I don’t know
3: no

And I found an additional lockout on mine:
FROM OFF: double click - the light flashes once and stays locked out until you
DOUBLE CLICK again - two flashes and the light is operational

The electronic lock system is only in SS and brass edition because they have not the option of lock out “rotate a quarter turn of the head thread”. Have you a Aluminium version with electronic lock out?

Aaaahhhh - I see…
Mine is brass!

my k18 brass works either EFEST IMR 10440 LI-MN FLAT TOP or other button top 10440 cell

My K18 doesn’t. :cry:

I haven’t seen singel one AAA with ODP yet.

hi quetzalcoatl
I´m also not an expert on AAA-flashlights yet, especially with 10440 option (which of course are the only ones, who need ODP). But to name just one, who has this feature, here you go:

Tool VN (lumintop Tool AAA modded by Vinh54 ) with DriverVN2 has integrated voltage protection, as it dimmes the light down, when battery voltage drops to 3,0 V or below…

Great review thanks!

Thanks for the info AAA-Maniac! :beer:

So what do you guys do, to prevent battery damage? Cant believe everyone carries a voltage meter on the day :wink:

You must use your eyes and have some good feelings for 10440 batts in small AAA. :nerd_face:

Not TOTALLY true. My ALUMINUM version and SS version work w/ Efest 10440. Here is the deal,some of the EFEST FT[protruding] do not work,If the wrapping is off or the raised FT is very slightly smaller,it won’t make contact.

I am fortunate that my dealer lives across the street w/ his warehouse 2 miles a away! I brought the light and it did take 4 batteries to find 2 that worked and still are working!

SO FOR THE NORMAL BY MAIL TRANSACTIONS,IT COULD BE HIT OR MISS!

Just got this light.

It’s my new”showoff” light!

“How can something that small send out that much light!”

Well, I thought to differ, as I have 2 of the Efest working fine in my now 5 brass K18s (2 more came today, I like them), butt I also received 4 more 10440 Efest flattops and after checking 3 of them, I almost didn’t check the 4th….which didn’t work. I can see no visible difference, butt mine eyes have seen the glory once too often and I don’t have calipers.

I don’t understand your…“I thought to differ” when you have several that were “MAILED” and One that does not work???

MY point is simple. BY BEING ABLE TO GO THE liionwholsale warehouse I was able to make sure that they worked,first Two did not, second Two did!

By mail if you get some that do not work,you have to send them back or use them in another light! :wink: