Will try it, when i have time and orange paper(:P)
I know our brain is not perfect, today i use ut01 all time, and now all my flashlight’s tint are silghtly cooler
I had the same issue with Manker U-11. I won this light and requested NW tint but tint is yellow. Closer to 5A than any other tint. Nowhere near 5000K. Shit Tint Happens…
jesus what happen with switch in that flashlight :person_facepalming:
I didn’t receive my UT01, after something like 8-10 weeks, so I submitted a ticket, and paid a little extra for GearBest to send me a 2nd one. I asked if they could test the light before sending it, given all the switch problems reported, and the person told me that all units are thoroughly tested. We’ll see…
I recently got mine and I’m lucky that I haven’t had the switch issue, but I’m having a different issue. I can’t get Eneloops to work consistently. Sometimes it turns on, sometimes it doesn’t. Sometimes you put an Eneloop in and it turns on, then you set it aside for an hour and try again and it won’t power on. I have no problem using alkaleaks. Works flawlessly every time and just by eyeballing it, both cells appear to be the same length or very nearly so. I just don’t get it and it seems like some of you are using NiMH cells. Any ideas?
Also, I’m disappointed that my Orbtronic protected cell doesn’t fit (should have read this thread first). There are some good suggestions in this thread, should we compile a list of IMR cells known to fit/work?
Also, looks like I’m not the only one to get the “surprise” warm tint model. I actually prefer this tint so I have no problem with it. :+1: 
I have a complete dead light and wait for respond from Gearbest, but I have already collected a list of short protected LiIons :
My meassured Tube UT01: 51,9mm x 14,75mm
No guarantee for the list, these are only mentions from other people
- Marsfire
- Trustfire
- AW (short maybe to long) https://www.akkuteile.de/lithium-ionen-akkus/14500/aw/aw-14500-lithium-ionen-akku-3-7v-750mah-protected/a-17006/
- Xstar 800mAh
http://www.xtar.cc/products_detail/productId%3D43.html
- Soshine 14500
- Nitecore 750mAh
Nitecore nl147 battery (one UT01 User said it worked other it doesn’t)
There are different infos how long LiIon can be, maybe tolerance from tube or battery
50,8mm won’t work
50,3mm yes
Q: Manker E11 - Review / Vorstellung / Test | Taschenlampen Forum
The lamp is 84mm long, not 82mm as in the description.
If everything is to long I would go with two 0,5mm thick rings in the head and the tail. Lose in the tail, in the head I would use two solder points as fixation to prevent shorts.
Joechina
Thanks for that list Joe. Interesting that the Nitecore NL147 works. I wondering if others have had success with the NI14500A cell? I believe Giorgios mentioned using it as well. I think I’m more interested in using an IMR cell in this.
Hope Gearbest can straighten out your issue!
I have two of these lights now. The first one had a faulty switch which made it nearly unusable, so I contacted GB and they sent me a replacement. The replacement is now the wrong tint at cool white, but it works perfectly. Very frustrating. Also, they asked me to respond to the following :-
“Please follow these steps and kindly answer the following questions, in order to help us review your case:
-Does the package show any signs that it has been tampered with?
-Please send us clear pictures of the box at all angles, including the shipping labels.
-Please tell us the outer weight indicated on the box.”
:S
Hey no guarantee for the list, it’s just what i’ve read.
Interestingly some batteries are shorter on the manufactor website than on sellers websites.
So GB have refunded to me, at least their supports work well
17$, what should i grab now
I’m still waiting for mine to see how I made out n the switch lottery.
It is taking an unusually long time to get here. Ordered on Feb 12th but according to the tracking it arrived in New York on the 23rd and has been there ever since.
Bob
You can grab another if you still want one working UT01.
I’m still enjoying using 3 UT01 and no sign of switch malfunctioning so far under my normal use.
Hope the switch will last a good time
I dont want another waiting 20+ days just to receive d.o.a product, too risky
Klarus mi7 maybe is a good choice, but the price is quite high
There are codes available for the Klarus Mi7 so it is only a few dollars more. Check with M4D M4X.
The reason I chose the Utorch over the Klarus is the mode spacing.
Bob
Thks, i will pm him
Unprotected 14500 WindyFire button top IMR works perfectly in UT01. :+1:
ETA: WindyFire is an exception to the “Fire” rule of batteries. It was tested and approved by HKJ.
https://budgetlightforum.com/t/-/28265
I’m using a MXJO IMR 14500 700mah unprotected high drain. Got it from IMR batteries. Works good.
Purple efest IMR works fine in my lights. I prefer eneloops though.
Good luck everyone with their UT01/E11 switch lottery… and battery lottery too.
Thanks for the IMR recs guys, I appreciate it.
Any ideas why my Eneloops would provide flaky performance in my UT01, but alkaline cells work flawlessly? Shouldn’t have anything to do with the difference in voltage I would think, since it appears others are using them with no apparent issues? I’m wracking my brain trying to think of what could be wrong and it’s driving me crazy.
Was your eneloop fully charged? I noticed when my eneloop is running low, the UT01 would intermittently not turn on. Sometimes it takes a few clicks to turn on, sometimes it won’t at all until it’s rested for a while. When I put in a freshly charged eneloop, all of a sudden the flakiness goes away.