Hello fellow pilots, I have an interesting question regarding the last FW update for the batteries. Many of my clients and I live in a year round warm climate and are asking if it is necessary to update due to not living in a cold environment. There are reports after updating that there has been a slow down in performance. I have not seen any info or links within the forums regarding this. If there is please point me to the link or links. I myself as a DJI Tech, have not been able to test and to see the difference myself as our weather in our area has been brutal due to high winds since the v.40 was released. My thought is that only when temperature is below a certain point will the actual battery update take affect and then decrease performance or does it change the performance at any temperature from the start. Thanks for your support as always, Blue Bird..