This could happen in any parallel setup, itās not a specific problem of the light discussed here.
Btw. with a 4P2S setup it would be even worse, since the carrier with the depleted cells gets reversed voltage.
Not only worse, far more common, since the 8 cells will rarely be charged together, or if together, nearly always in different chargers since more people will have two 4 bay chargers than an 8 bay.
How do you reach 20Ah with 4x18650? Max would be about 4x3200mAh - 12.8Ah, nowaday.
Whatever time it takes is much better for most people then having a dedicated Li-ion charger and handling the cells in and out of the light. It makes it straightforward, like charging a phone or a power bank without worrying about whatever cells are inside - and much safer (no chance to put one cell the wrong way).
I can imagine the variant with XPL-HI but why does anyone need a battery extension tube for the Q8?
I did not even know Sofirn was related with Thorfire
Interested in a XPLHi version though, especially if the coupon from Martin is still working.
Did they mention what bin will be used? or is there any choice?
Imma order the battery tube extension I have a use for it. When Iām at work in my paint booth I use lights and to change batteries I have to come out from under the trailer make sure thereās no paint that will get on the light. From my paint suit. I usually change batteries but it will be nice to have twice the run time. And when I take my kids to the park at night. I make a circle of lights itās not lit well. Having twice the run time will be nice. So most people wonāt need it but a few people will find it useful. It canāt be any heavier then a mt07s but for my use Iām not carrying the light most of the time. So weight and heat isnāt a issue.
From what I have understood from what Sofirn said to me, they share the same factories, and this is how they are offering the DIY parts and the new Q8.
One other thing is they said is the reason they are offering DIY parts is that Thorfire was never willing to do so, and Sofirn saw the need for the DIY community to have these parts.
One other thing though: I have not asked Sofirn yet, but who is going to sell the new Q8? Thorfire or Sofirn?
Hmmm. Sofirn and Thorfire sharing the same factoriesā¦ that seems to make sense.
Iāve noticed that the Thorfire VG10S and the Sofirn SF36/SF36W look extremely similar (I think even their UI are similar).
And the Thorfire TK18 seems to be a hybrid of the UI for Sofirn SP31 and SP32A.
(Thorfire TK18 = tail+side switch, and the UI is low-to-high-to-low ā this is similar to the Sofirn SP31.
though the Thorfire TK18 also has a ramping UI, which is similar to the SP32Aā¦)
There are likely other similar flashlights between Thorfire model and Sofirn model that I havenāt read aboutā¦ (oops but this is sort of off-topic for this message thread)
Seems silly to make such a large extension and only change the LEDās to XP-L Hiās. You might as well throw in some XHP50.2 or XHP70.2ās if youāre going to have that many batteries.
Iām sure it serves a purposeā¦ Maybe for someone going camping for a WEEK and needs as many batteries as possible due to no way to recharge the batteries?
I use my Q8 a lot and hardly ever see the 4 batteries drop below 4.00v. Put that extra voltage to use and give us a 20k lumen light! :+1:
If it becomes 2S thatād be great, but the issue is using it with existing Q8s would be rather problematicā¦ I can see why theyād keep it all parallel. You can still run 3V LEDs that are very amp hungry as long as 8x cells wonāt push them into the danger zone.
Also as it was tested the Q8 can run stock turbo indefinitely without harm, just gets warm. The extra battery tube gives a better place to hold the light from in the event of such warmth.
My q8 is stock and on turbo it will get scortching hot. Maybe not hot enough to damage the components. Maybe yours gets warm because you havnt disabled the thermal regulation