It depends on what Sofirn has for cells to offer with the LT1, i know they have some good quality 3400mAh 18650s in their website, maybe they can offer those as an extra cost package option. (I will talk to Barry & the team about that for when it goes into production and is ready for ordering.
Sofirn is unlikely to offer Samsung 35E’s as that’s not one of their standard OEM options, but their kit cells are typically good values, even if they aren’t the best thing available.
My only concern has been whether or not the 3400mAh is actually a different cell than their 3000mAh. Nooner found them to appear identical and have the same capacities HERE. The 3400 appeared to be just a protected, button-top version of the 3000. Both measured ~3000mAh.
If Sofirn bundle 4 cells for a few extra dollars, the upside will be that they seem to have a large supply of those cells; this “DLG” brand seems ubiquitous in at least some parts of China. This will almost guarantee that you get cells for your LT1 even if you later decide to purchase nicer, more expensive cells.
I like them. I use the unprotected version mostly.
I also got some unprotected button tops from Li Ion Wholesale. They add the button tops themselves. They spot weld them & do it correctly. They do a great job.
Would it actually be better/easier to use protected cells here vs unprotected given the built-in features of the LT1? Just trying to figure out for the same purposes of potential gift giving…
As was discussed for the Q8 also, which uses the same battery configuration, in a 4xparallel configuration protected batteries do have a real advantage: no driver protects you from inserting one of the batteries the wrong way and upon closing the light frying the springs, or worse, from direct shorting the batteries against each other. It will happen at some point. Using protected batteries at least saves you from collapsing springs, that nasty resulting smell afterwards, and having to find and solder at least two new springs.