I didn’t test TH30 unfortunately. It takes 7-8hours to charge 3500mAh 18650 using hc65.
I dont like in hc65 :
18650 button top only. Cold white only. (and changing LED is hard procidure). Operation is not quite well e.g. to turn on 1lm mode from 80lm you should go through 1000lm mode. Hicri led have only 1 mode .
Imalent HR70 also dont have Ipx7/8 , have stupid mode set 3000-1500-1000-550-150lm (it is measered numbers), thermal control which allows light to heat up to 90 C.
AT is good light when it works, but
I have met many times when they broke. Real power is about 1600lm not 2300lm.
HC33 has common issues for Nitecore : 18650 button top only. Cold white only. it has also very narrow beam comparing previous headlamps.
But I am caver so very picky in choosing a headlamp. )) May be there are many points that are issues for me, and they are not issues for you.
I recomend usually H600fc mk4 or H03/Hc30 for my friends and colleags. But those headlamps dont have charger.
You can take a look at this one [Review] YLP Panda 3.