no luckI just checked mine.
Plugging in the charger to the wall socket the light quickly blinks green.
Plug an uncharged battery to the supplied four pin white socket....
The same light starts slowly blinking red.
Same results on both my G chargers. From what I remember I get the same results from my 4K chargers....
I just bought the Typhoon H, I had no problem charging the main batteries but to charge the St16 remote battery it plugs into the charger by USB. Would not charge the battery. Called Yuneec and they sent me a new battery. Didn't work, still wouldn't charge. I got another St16 to use but it will not charge any of the 3 batteries I have. I'm at a loss. Its not the batteries, not the charger and not the remote. Is there a plug available to just charge the St16 battery directly?
Check the other end, like the cord you are using could be bad, or the outlet converter can be bad. Or maybe you are plugging it into a computer port that is not equipped to charge.