I have this Kaidomain driver that I use with 2 x 18650’s (8.4v) and gives around 3A to the led
I am wondering if it would be safe to solder one additional R120 resistor on top of the existing R200’s that the board currently has (3 o’clock position in the pic) and if I will get an increase in current to the led by doing this, can anyone estimate what the new current to the led would be by adding one R120 resistor?
Well, I just went ahead and did it and current did increase a bit, now using 2 18650’s is pulling 2.3a from a stock 1.8a, now my custom 2 1/4C Mag With Throwmaster reflector rivals my modded TN-31.
Nice work If you edit your post to include the name of the driver, then searches for this mod will find yours. I.e. Sense resistor mod to KD Super Output P7 Driver.
Nice mod Alex. I have this driver. Were your measurements from the tailcap or at the emitter? Also, have you ever experienced the thermal cut-off feature this driver was noted for? What about low voltage warning?
I’ve used this driver for a few different mods, 2 bike lights and one handheld. 7x nimh for the bike lights and 6x nimh for the handheld. Both features functioned as described in Kd’s specs. A different blink for each and shift to low mode. I think lowV is two blinks and over temp is 3 blinks.
Adding another R120 will lower the total sense resistance, and very likely increase the output current, but the driver may or may not be able to handle it.
Edit: Has KD missed a decimal place? This thing cannot possibly cost $43.99.