Yeah, no post/statement from Terry in the last 4 days and Dale does not show up either. We really need a statement here regarding the problems of the MT09R!
In my case it’s not going to work as I have three lights lit at the same time.
From spending too much time here, I personally thought there was no real danger. Venting happens at much higher temperature, and in my case temperature crawled slowly to 100C. Batteries were 3.7V after 15 minutes, so it’s also a relatively short period of time that the batteries were exposed to a very high temperature, which is lower than highest temperature measured.
An important aspect is that I continuously monitored both lights, which to a certain extent makes this test safer than charging your keychain light with USB unattended. I’m thinking that it had an impact on cell life, but before reaching 50 charge cycles in a couple of years, these cells are probably going to be replaced with a newer higher capacity, higher drain version anyway.
You can find info on the Samsung 30Q here which is quite interesting: https://www.nkon.nl/sk/k/30q.pdf
It’s actually not that sharp compared to many other flashlights. Haikelite was thoughtful enough to chamfer all the edges if you look closely. The design is really nice. Both of my MT09R had no issues screwing on the tail cap at all. It doesn’t go on as easy as some of my other flashlights but the MT09R is a 4 cell flashlight and it is much more convenient than having a cumbersome separate battery holder like many 4 cell flashlights such as the MF01.
I hope you are wrong but considering all the other targets that were missed with this light I’m not optimistic either. The charging unit was integral to my decision to purchase this light and with the other issues this has the potential to be quite a disappointment. I’ll deal with the issues if the charging unit arrives and play around with trying to improve the light a bit. Without the charging unit though I’ll be quite upset.
Now that i have the light and i didnt order the charging unit if it will come out i could be interested if the price 10$ remains or if u even can get one? if not then fine with me but yes an update on that and the other stuff would be nice to get. The one pic they posted looks cool the idea it can charge and also act as an powerbank/light but i skipped it because i knew it wouldnt be ready to ship with the light anyway…
Today, inspired by your temperature measurements, I decided to check my … BLF Q8. Of course, with the temperature control turned off. The batteries are 4x30Q. At full power after 10 minutes she was 60 degrees Celsius. It was really not pleasant to hold a bare hand but in my opinion it is the upper reasonable limit. It’s hard for me to imagine a flashlight that reaches almost 100 degrees
I highly doubt they will retail those at that price. Shipping alone from China would already cost $10. Also the manufacturing cost of the charger is probably another close to $10. If sold and shipped together with the light, it would make more sense but shipped separately, I don’t know how they can burden that loss. I’m betting my 2 chargers will be cancelled and paypal refunded. But still I’m very pleased with the light so no regrets.
You can test this yourself as well. Take a kettle with boiling water (to make tea), it has to be metal of course. Exert a pressure with your finger on the kettle as if you want to push a button of a flashlight, so you need a certain amount of pressure for a fraction of a second. That’s it, it’s doable. Cheers man. :partying_face:
This was my light that reached 100 degree C .
I left it a short time in tailstand on the table in front of me.
Measured with a laser.But the light seems to be OK,no damage.
It runs still strong .I bridged the springs with Sony VTC6 its over 15K Lumen in the first run with fully charged cells.
Never thought a light could get so hot in so a short time.
Many of my lights can reach 70 Degree C but never 100 .
It is not a really big problem for me .Couse i never let run such a monster light unattended.
This was only afew minutes in front of me.I didnt know it can get so hot.
Maukka measured a temperature of 96C with the Acebeam X45 (below the runtime graph): Acebeam X45 review with measurements (4x XHP70, 4x 18650)
The odd thing is that this temperature was reached only after 5 minutes instead of 15 minutes for the MT09R.
i understand most people are concerned with issues with their lights, but can we get an update on the chargers? I haven’t heard anything about them since the initial offer of this GB.
I have been going back and forth with Dale on my light (not working properly) and in his last email to me he mentioned sending my repair parts along with the charger. We are trying to get my light working and it seems that the chargers may be close to being ready (hopefully). Dale has been pretty responsive to my problem which is making me feel a little better about my situation…
I came here to learn what kind of voltage regulators does Heikelite use with XHP35.
The answer of “none” was a shocker.
The host may be great, but it really deserves a better driver.
Anybody knows how many Lumen the 70.2 can reach full constant regulatet with the 7135 Chips?
Is the whole mode group 1 (the muggle group) full regulatet . 5,5 Amps?
My light has 4000 Lumen max in this group (factory says 5K)
I have no issues with my light.
The temperature thing is not an prpblem for me,now i know how fast this light gets hot ,an if so i put it down.
Any uptdates to the 8x18650 battery carrier?
Im glad i have not bought the 35 Version.