Ok, I am almost done with Nikko Stirling
Lasted about 1000 shots and started shutting down after every round -> re-soldered and 500 rounds without problems -> same issue soldered again, but internals got too sloppy and sight trashed.
Time to go full retard and redo battery department. Chip is 2.50$ Atmel 1234 Attiny13a ssu so nothing special here. Yeah it's probly same as RTS2 V1 or even worse.
Still no cake, any loss of power will dim the dot and ruin a training session. Maybe a 3D printed holder with screws? Also thinking about using direct voltage to diode without any switches and remove battery after.
It's a bit shame because mechanics are pretty good, but electronics and battery holder are POS. Will be a miracle if return percentage is not over 50. DAA Europe already stopped sales of this dot...