Transponder Key?

[max]

Bazbro, in my case ( japanese import ) the hiss warning light only flashes for about 24 hours and shuts down, i was curious and measured the battery drain whilst the light was flashing, the battery discharged 0.0012A, 1.2 milli amperes before shutting down after 24 hours at 0.0 mA, exactly the same on my cb919 hornet, are you sure yours flashes for longer than that?
Very curious to hear about that and an interesting observation, thanks for sharing; max