Skilhunt H series - modding for dummies - questions

Hi!

I have Skilhunt H03R SE and H04 and I’m waiting for parts to try out “modding”. Plan is to pair up Quadrupels boost driver with an 6V XHP50.2 and put a TIR over it. All the parts are on their way (correct ones I hope) and now I’m sitting here and looking at them and few things come to mind.

Would setup like that benefit from a spring bypass? Tailcap spring is small and thin, did anyone try to bypass it? Picture would help. I’m thinking that replacing tailcap magnet with a copper button of same size and connecting it to a smaller copper button on top of the spring would be a great way to do it. And just put a magnet on the outside of the tailcap.

Also, any benefit from using thicker wire for connecting emitter-driver-switch?

Once up on a time i shorted and burned spring, so made replacement

1 Thank

Ok, so this is my first attempt at spring bypass and first time soldering after 20ish years so I’m happy with it. I used 0.75mm2 wire (18AWG), and to increase contact area I made a little spiral and after soldering I sanded it flat and polished. What do you think?


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Just check spring with magnet, if it have no attraction it should be fine without overcome.

The spring is around 30mΩ, I guess that with Quadrupel driver it will draw a max of 4A ? 0.12V drop and 0.5W wasted, at this current it heats a lot though, so more than that.

On mine I removed the magnet and added a solid wire as a spacer, even with a thin 0.14 mm² wire the resistance is down to 2mΩ.

Yes, no more 4A. I’m using Fasttech springs. No magnet attraction. After few min on turbo both springs cold

I tried measuring resistance with two units and couldn’t get anything so it’s probably in the µΩ range if I’m correct.

DMMs can’t measure low resistances (~below 1Ω), you need to run a known current and mesure the voltage across the spring in mV range.

But any bypass will reduce the resistance to negligible levels anyway.