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

[peabody]

@Coscar

If you are “using it” …… it wont be dark :person_facepalming:

That has to be in the top 10 flashlight quotes of 2019.lol

[RobertB]

@Coscar

@RobertB

@MNLegoBoy

@DBSAR

( I do like the idea of a red & blue version too, but unsure if Sofirn can do that many other colors or not)

I did these for a fun project, i never realized they could have actually became a thing
Maybe in LT2

Not sure anyone will care what color the lantern is, when using it in the dark.

If you are “using it” …… it wont be dark :person_facepalming:

That nice purple color looks great while “using it”

[Diakonos]

I’m definitely in for 1. I’ve been very dissatisfied with the neutral/warm LED lanterns on the market (and have no desire for 6500k in the woods). This looks like easily the best option out there.

[sbslider]

SigShooter, please increase my quantity from 4 to 5, one more friend is interested.

[quvantage]

Interested in 1

[SIGShooter]

@sbslider

SigShooter, please increase my quantity from 4 to 5, one more friend is interested.

I bet a lot more will be interested after seeing how great it is in real life

[cpf_borealis]

Silly question — does the lantern require all 4 batteries, or can it work with fewer? I’m guessing it can, since the batteries are parallel, but I don’t know if the max current of a single (unprotected) battery can be exceeded and what would happen (would it just not reach the max brightness level?). And what is the max current, anyway? I’m figuring 7x7135 is 7*350mA=2.45A, which sounds a bit low for 4 LEDs.

[DBSAR]

@cpf_borealis

Silly question — does the lantern require all 4 batteries, or can it work with fewer? I’m guessing it can, since the batteries are parallel, but I don’t know if the max current of a single battery can be exceeded and what would happen. And what is the max current, anyway?

It can run on 1 , 2, 3 or all four cells, and maximum amps being below 2, it will be not an issue even with lower drain laptop pulls.

[cpf_borealis]

So the purpose of multiple batteries is only to extend runtime, right?

[djozz]

@cpf_borealis

So the purpose of multiple batteries is only to extend runtime, right?

Yes, and thinking about that, if you are a runtime freak and really want to squeeze out the maximum runtime out of your 4 batteries, the best way is to feed them one by one to the lantern instead of all four together (less overhead voltage will be burnt off), and if they all are used up because of the LVP kicking in, you can put all 4 near empty batteries once more in the lantern and have even a bit more runtime…

[Propeak]

@djozz

@cpf_borealis

So the purpose of multiple batteries is only to extend runtime, right?

Yes, and thinking about that, if you are a runtime freak and really want to squeeze out the maximum runtime out of your 4 batteries, the best way is to feed them one by one to the lantern instead of all four together (less overhead voltage will be burnt off), and if they all are used up because of the LVP kicking in, you can put all 4 near empty batteries once more in the lantern and have even a bit more runtime…

Wow, learning something cool everyday in this BLF thread! :student:

[patmurris]

Speaking of LT1 production being delayed by color options, i’m sure the black will hit first with no delay.
However, if i know other colors will be available i will delay my order to get a tan and green pair (for instance) rather then two black.

[PatX]

Hello

I`m on the list for 1 lantern.
1860 PatX

please add me for 2 more. 3 total.

Thank you

[djozz]

@Propeak

@djozz

@cpf_borealis

So the purpose of multiple batteries is only to extend runtime, right?

Yes, and thinking about that, if you are a runtime freak and really want to squeeze out the maximum runtime out of your 4 batteries, the best way is to feed them one by one to the lantern instead of all four together (less overhead voltage will be burnt off), and if they all are used up because of the LVP kicking in, you can put all 4 near empty batteries once more in the lantern and have even a bit more runtime…

Wow, learning something cool everyday in this BLF thread! :student:

It was just a thought, and now I have another thought :person_facepalming: , running them one by one will draw more current per cell and that again lowers the capacity a bit. Which effect will win?

[kat]

I’m interested in one too, but without the batteries.

[DavidEF]

@djozz

@Propeak

@djozz

@cpf_borealis

So the purpose of multiple batteries is only to extend runtime, right?

Yes, and thinking about that, if you are a runtime freak and really want to squeeze out the maximum runtime out of your 4 batteries, the best way is to feed them one by one to the lantern instead of all four together (less overhead voltage will be burnt off), and if they all are used up because of the LVP kicking in, you can put all 4 near empty batteries once more in the lantern and have even a bit more runtime…

Wow, learning something cool everyday in this BLF thread! :student:

It was just a thought, and now I have another thought :person_facepalming: , running them one by one will draw more current per cell and that again lowers the capacity a bit. Which effect will win?

At the level this lantern runs at, even on max, that effect will not even come into play, as long as you have some decent cells to begin with.

[Ulrich]

I’m inteessted in one BLF Lantern.

[drewski]

Please add me for 1 more, for a total of 2. #1953. Thanks.

[eugene188]

Is there any final numbers on runtimes in max? I searched and found a post claiming over 12hrs on 3200mah batteries, but then calculations said it was supposed to be about 7hrs.

Also anybody from Toronto/Ottawa that would want to split shipping from 18650Canada? Pls PM

[DBSAR]

@eugene188

Is there any final numbers on runtimes in max? I searched and found a post claiming over 12hrs on 3200mah batteries, but then calculations said it was supposed to be about 7hrs.

Also anybody from Toronto/Ottawa that would want to split shipping from 18650Canada? Pls PM

Are you located in Toronto? (I live 45 minutes north of the city.)
I’m still running tests for run times, ( as it varies a lot depending on the cells, the ramp vs. stepped, etc. at one test i got past 12 hours on the 5-7135 factory default using the stepped modes on four 3500mAh 35E cells, then did the test again with a different set & type of GA cells using the ramp-high mode and got 8 hours, but it was difficult to measure if there was a step down (or gradual ramp-down) as my lux meter stopped working for my sphere.