Yongnuo YN-E3-RT - is battery drain still an issue?

[TheAndyA]

I've read that the YN-E3-RT's have a tendency to drain batteries very quickly, even when switched off. Can anyone share their experiences of using them, I'm also wondering if it's still an issue with recently produced units?

 

[booda]

try updating the firmware - think they are on 1.13 now which addresses some of the power issues.. updated mine yesterday but yet to test fully..

http://www.hkyongnuo.com/e-detaily.php?ID=337