Oh boy - this is a topic really for the Q8 modding thread where I detailed it all. The first 500 batch needs more tweaking than the second batch.
This is how I do the bypasses: https://budgetlightforum.com/t/-/46241/475
I must make it clear these were needed for first 500 batch, not so much for 2nd batch, but I'd still do a bunch of things for batch #2 Q8's. This is what I did on first 500:
- 20 AWG bypasses as shown in link above
- tin the contact rings around the screws where PCB contact the battery housing
- clean/sand the shelves on the battery housing to the tinned rings make good contact, use light amount of NO-OX-ID on that contact surface
- drill out driver screw holes to 1/8", replace screws, remove burrs on screw holes on the head where driver screws go on
- sand smooth the edge of the battery tube where it makes contact to the driver ground ring - removed burrs, sand to 2000 GRIT, light NO-OX-ID
These are the ones I did initially to get to 7,000 lumens, and was all about the battery tube. Later mods got into the driver and LED board.
Here's more:
https://budgetlightforum.com/t/-/46241/536
https://budgetlightforum.com/t/-/46241/383
Just about every mod I learn something, and do a little more, so some of the above posts are outdated in that I'll do more tweaks now.