I couldn’t find anything about this, so i ask the question:
Can the Convoy L6 driver, the FX30 run on 3 cells in series?
Because it’s a buck driver it would be nice if it could, so that you always have enough Voltage for maximum power.
Because normally you have the minimum voltage drop of a buck circuit which will ruin the fun when batteries run lower.
So can the FX30 handle 3S Li-Ion battery configuration?
(of course the default low voltage protection will not work for 3S)
Didn’t anyone try this yet?
They seem to stock it at kd but the info is conflicting, it states that input voltage is 3-9V but then it also says that LVP for 3-cell input is set at 9V and 3 full cells is 12.6V.
CF FX-30 30mm 6V - 13V 5-Mode Driver Circuit Board for Cree XM-L / XHP50 / XHP70 / MTG2 @ Kaidomain
Cheers ^:)
Sat, 03/04/2017 - 23:23
I don’t know which version of the FX 30 Convoy uses, but I would skip that one and buy the stock version in the higher voltage range from KD.
The mode spacing of the KD ones is terrible…
You would have to live with it as there is no other choice. I’m sure the Convoy version of FX 30 driver is the lower 6 volt version.
LD-29S 20mm 3A 2 or 3 Cells 5 Mode Driver Circuit Board @Kaidomain
Just a lil mod over the current resistor for higher throughput and that's it. 
Cheers ^:)
so is the driver from kaidomain different to the one on the Convoy L6 in therms of electronic parts? Or is it just the modes that are different?
I need something that can take 3s.
Besides the firmware, the other change to the L6 version is different sense resistors. The L6 uses 2 R082 for about 5.25 amps which is more output than the stock version. I think stock is maybe 4.5 amps.
Jdub-74 is in contact with Simon at Convoy and he could probably tell you what input range the L6 driver has.
I think KD's FX-30 input range is 2-3S, as listed for the above (#4) aforementioned e-switchless version. They just messed up with the description for the e-switch one, I believe. 
Hell, grab an LD-29S. LD-29s rock! :THUMBS-UP:
Cheers ^:)
I tried the Convoy shop and it lists the specs. They use the 6v to 8.4v version.
I asked Simon from Convoy and he said the driver can take 12v. I will try it out as I’ve bought 2.
O, that would be awesome. :+1:
+1 :+1: … Thanks for the info Bruno28. 
I wanted to share some info on this new FX-30 driver I got from Kaidomain. Not the Convoy version, the original.
This has a unique interface not described on the website. The tail switch puts it into standby and the side switch only has 3 brightness levels plus a strobe. You can turn the light on and off from the side switch. Very odd. I made a quick video on YouTube showing how it works and went into more details on it.
Would anyone happen to know if there are some points on the FX-30 driver capable of powering an led when power is flowing through it?
I would like to get a clear side switch boot for my L6 and have an indicator for when the rear switch is turned on. Kind of like the new Thorfire S70s does.
Thanks
I have an update for this thread.
I just tried 3 A123 cells in my stock L6 and it works great. I was using only 2 before and knew I was never getting full power, but didn’t have time to upgrade it. Sorry, I don’t have any 26650 li-on batteries to test out.
Nice necro morelightnow. That was to be expected, 3 in series LiFePO4 cells have a working voltage range of 6 to ≈10 V, in practice.