Just cut 3/4 the length of the outer thick spring and after the problem. All my batteries work perfectly and are not damaged.
Grateful for this thread. I think I read most of the posts. I have 2 UT01’s on the way. now I know what problems to look out for if they come with it. So basically there is 2 issues that may arise. One being the switch which someone mentioned fixing with a 1.5mm plastic filler under the boot. And the biggest one was length of body tube could be short so connection issues and driver crushing. Solved by a copper filler. Or cutting the outer spring a bit?
I received 2x UT01’s a week ago and one is on its way, no issues with power buttons so far and I received 4x 14500 button top batteries today, these fit nicely:
Soshine 3.7V ICR 14500 900mAh Li-ion Rechargeable Battery
amazing deal on those batteries!
Yeah, these batteries are really nice, people get between 840mAh and 1000mAh in the Aliexpress reviews and you get also a battery carrier.
Good suggestion. Thanks!
I guess I need to backread as I received my UT01 a few days ago and absolutely won't turn on. Sigh.
I think this is the last time I'm ordering FL online as the return policy and shipment is too much of a hassle :(
oh, I only know a flat cut.
What effect has this pyramid shape on the beam?
Or is it more a cone?
Joe
In total, it’s a pyramid and I do not know if it changed a lot, unless I actually do it flat.
Got my third. Needed wire to work. Still no turbo with good battery. Did engineering mode and got turbo. Happy.
I gotta say for 10 bucks it’s a very nice 14500 EDC light. Seems well made and looks much better than any of the pics I had seen.
I may replace the driver and UI but just to beat around, it be fine without the swap. I just can’t help myself, it’s screaming mod me.
Over all I’m very pleased with the light, better than I was expecting.
Yes, it is a nice quality for the price, packaging is good, ordered my fourth yesterday because it is easy to gift since it also works with AA and has presentable packaging.
I approached the subject again and scalped the diode completely. Now it resembles the HP-L HI version. For this I changed the paste and polished the substrate diode because it was not equal. Effect? Wow, it shines noticeably harder. Of course, I made measurements:
Before changes, 114 lux with 5m:
After changes, 156 lux with 5m:
And some photos from the modification:
^ looks good! :+1:
Does anyone encounter this issue:
UTorch UT01 occasionally (or fairly regularly) will not turn OFF (have to unscrew the tail cap in this case):
Maybe it’s an electronic switch problem? How to fix it?
Hi dear, where did you get it for ten bucks?
thanks
Check this one
Thanks a lot
Anyone know the maximum amps a utorch ut01 will draw with a 14500?
Deciding if I should go with a Sanyo UR14500P (better at ~ 1A or below) or an Efest 14500 (better at say 2A-5A but less capacity)
About 2 amps. I have used the Sanyo several times in the ut01 and they work fine. I have used the efest to, I don’t see any noticeable difference between them in the ut01. If you need more current than 2 amps in another 14500 light go for the efest to use in both.