*BLF LT1 Lantern Project) (updated Nov,17,2020)

I just washed and dried on the regular setting - so the dryer was hot and the washer was warm.

:smiley: :+1: :beer:

How long until there is lt1 maxx using 4x21700’s because i think it would be lolsy to have a lantern with 20ah battery life

that cell format may be possible for the LT2 ( Deluxe) version planned, that will have the power bank option. a 20ah power bank/lantern has some real benefits for run times and charging capacity. :+1:

Agree with ALL this 100%
Count me in. …again… :+1: :person_facepalming:

One small possibility. Some cells were sold that had wrappers that seemed possible to confuse unskilled users as to the correct orientation.

17 days from placing my order to my mailbox in ‘the South’ US……
That has to be some kind of record! :+1: :beer:
Thanks Sofrin for getting it out before CNY.

Hey folks I received a round one amazon code with batteries but my wallet wasn’t free enough for me to buy a lantern till today but I can’t seem to find an Amazon listing for the lantern, did I miss my chance to get one?

You can get one at Sofirnlight.com, and they have a coupon that makes the price the same as the group buy. I haven’t checked Amazon, and got sort of tired of the code business. They all ship from China, so I don’t think Amazon would save time.

I ordered another with batteries yesterday. Although they are currently not available according to this page

And then I get this email a few minutes ago.

How long do the CNY celebrations run for? And why would Sofirn stop taking orders? If I cancel the Amazon orders and order from Sofirnstore.com will they come any sooner?

I also encountered the same problem, because there is no stock currently, so I have to wait for the next batch. I also hope that it is the new version of LT2?

P.S The Lunar New Year holidays are on 1/24 ~ 1/29.

What about if I unscrewed the base the small amount just until the power button light goes out, will it still keep the cells balanced at the same voltage?

+1 on the LT2 extended super deluxe extra ultra mega max version

[quote=sueli428]

[quote=DBSAR]
The LT1 runs the cells in Parallel, and keeps the cells all at the same voltage.

If the cells are any good at all they should stay in balance even if they were removed from the light and stored separately for months. The few times I have bothered to record and check cells that have been stored for 6 to 12 months they have remained within hundreths of volts of each other. That is nothing to worry about.

Unscrewing one end or the other until the button light goes out mainly removes the parasitic load the button led causes. But that is so low a draw I would not worry about it unless I was putting the light away for an indeterminate period. Mine are mainly meant to be emergency use lights although I will also use them here and there and for camping. As such I want them mostly charged and available.

This post inspired me to check my laptop pulls and recycle bin scavenged 18650 cells. 5 months ago I charged them all in my charger, and measured the voltage after they rested a bit. I’ve measured them a handful of times since then. Of the about 50 cells I originally tested, one had issues with the voltage dropping with time, I found that in the first week. I just measured 32 cells that haven’t been used since they were charged 5 months ago. There were 4 different groups of cells. The groups of cells were different part numbers from a couple of different cell manufacturers. Samsung ICR18650-28A, LGABC21865, LGDBB31865, and one I didn’t note. within each group or cells, the voltage difference between cells was 0.01V or less. For all 32 cells, the voltage ranged from 4.17 to 4.13 V. If you connected two cells in parallel with that difference you would not have any trouble.

I also measured 4 cells (ICR18650-26H) I used in my LT1 for the first month or so, then I switched over to some higher capacity cells. The 4 I measured were all from the same battery pack. The measured between 3.856 and 3.857 volts.

Data that supports MtnDon’s assertion in the previous post, don’t sweat it.

[quote=sueli428]

[quote=DBSAR]
The LT1 runs the cells in Parallel, and keeps the cells all at the same voltage.

Yes, as long as you only un-thread it a couple turns or less. the four cells will still be on contact with the base springs, (all connected together) and the cells will stay contacted with the positive ring on the driver, they will be kept in the same balance voltage. ( i have tested this already) same applied to the BLF Q8, or even the original Sky Ray King for that matter. The only part that “locks out” when loosened a bit is the battery body upper-most bare edge disconnects from the negative outside ring of the driver near the threads.

I can confirm. I ordered via Amazon and it took 6 weeks to get the light.

Because you placed you order early. You are lucky.

CNY holiday lasts for 10 days. But LT1 is out of stock now. It is estimated that LT1 lantern will be avaible early March. Thanks for your patience.

[quote=DBSAR]

[quote=sueli428]

That is good to know.

Thanks to everyone that helped me me get things figured out. It is up and running now and I really like it. I will mostly be using it for emergency’s and camping like MtnDon.

Good work to everyone that made it happen. Good brightness, runtime, tint options, charging, and design. Very practical.

Maybe a consolidated faq questions and answer details thread would have been useful for a noob like myself not familiar with all of the technical info scattered about. Thought about putting something together since I have asked so many questions, but most people here already seem to know most of the stuff I was asking about.