Can I swap the driver of my SkyRay King?

LED Flashlights – General Info 18650 Flashlights
21

Posted it for you.

22

Here the correct URL is.

http://www.youtube.com/watch?v=Foc9R0dC2iI&desktop_uri=%2Fwatch%3Fv%3DFoc9R0dC2iI&gl=GB

23

It’s not just an EEPROM, but a micro controller. I have not yet read of someone being able to reprogram these unmarked Chinese ones. Seems to have a PIC pin layout.

There might be space enough for three NANJG105C, one master and two slaves. A master with a firmware suitable for electronic switches (Tido made one for PIC, I made one for the NANJG/Atmel) would be a possible solution.

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While you are hacking around in there do something about the standby current. It is around 100-1000 times higher than it could/should be…

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Curious what is the parasitic drain on this light?
How long does it take to drain 4-18650 from a full ~4.15V charge down to (say) less than ~4V

Its not a deal breaker in my book though since power can be 100% cut off by unscrewing the battery tube a ~half turn… I’m just curious more than anything.

thanks

26

Batteries in SRK are in parallel...total volts is 1S, so 4.2vdc is max voltage you will get