Yep… that last one you mentioned, “spend some money”; ’can be’ a killer. :person_facepalming:
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Just got the Q8 and reading through the threads. Additional cells provide longer run-time?
Yes. The batteries are in parallel so you add up the mah (milliamp hours). It’s the number of hours it can put out 1 milliamp. So one 3,000 mah battery (like Samsung 30Q) can put out one milliamp for 3,000 hours. 2 of those batteries gives you 6,000 hours. 3 gives 9,000 hours and 4 gives 12,000 hours.
@ Joey Adams……. You mentioned before you have two Q8’s… 1 stock & 1 modded by TomE. How much difference can you see in an actual side by side comparison of the two lights???
I am just assuming you have done this… if you haven’t please do if you don’t mind.
Thank you in advance!! :+1:
I know I would have. 
/\\\ … Me too!! 
. :+1:
I'm very curious as well. I assume there wouldn't be much of a difference to the eyes?!?!? Just guessing with that amount of light :D
Folks, got my Q8 today and top battery tube o-ring was caught in the threads when they screwed a light head onto the tube and it ruined the o-ring it is cut now. Contacted Thorfire and they told me to go pack sand, they do not stock or sell those o-rings. Banggood asked me canned question for the picture when I already included pciture of the issue, they simply do not even review. With that what o-ring do I need to buy and from where? Much appreciate the help. The price we pay to buy "budget" from budget sources
Didnt you receive a spare one in the package?
Yes, installed that one but still would like to have two spares not just one. The top is the one that I will be untwisting often to re-charge the batteries, even with Nye 760G it will take some beating quickly. They put two o-rings for a reason. Given that there is no warranty on BLF Q8 not even 30 days warranty, it is not a terrible idea to have more o-rings in the bag. Plus they closed the light with the o-ring right in the thread at the factory. I think it was due to almost no lube on the thread, it was almost dry. I relubed with 760G.
I’ve had no issues with my Q8 but I too would like to know the dimensions of the o-rings. Ya never know……
Thanks fot the O-ring info & link. They have different colors & GID too……
@dvzzz……. If you need one right away or do not want to order them, go to an Auto Parts store & find one that fits. They usually have a very good assortment of sizes.
I haven’t had much luck at auto parts stores. My local Ace Hardware Store keeps a lot more o rings on hand. The local places that carry the largest selection of O-rings by far are going to be hydraulic repair shops. If you live in a fairly large city there should be at least one shop that repairs hydraulics. They carry Master kits with every size and shape O ring imaginable.
Small parts can be hard to find. I still haven’t found the M2.5 x 5mm brass screws for the little Q8 mod. Found them on Amazon but I don’t need 50 of them. I’ll keep looking.
Man I have had great luck…… my ‘parts store’ just about has it all.
Of course it is not your basic generic run of the mill, chain parts store either………… So if someone has only acess to this type ‘parts store’ & not the real deal…… those places Jason mentioned could be a great resource.
Check some of the Ebay links people gave, they had them in smaller quantities.
I’ll try to hunt up a link or two………
Edit: Here is a link Bushmaster, I got some from this place.
From the 5 million page Q8 thread…
Is it possible to order a Q8 MCPCB separately?