My Name is Rafael and I am on the product team for Limefuel. As you all know we are the manufacturer for the L54P Extended DJI Battery on Amazon (link http://www.amazon.com/Limefuel-Replacement-Quadcopter-including-Compatible/dp/B00M7F83KK). I am posting on here to make sure you are all aware of a current issue with DJI's new battery firmware update (V2.6). After some initial testing it seems that the latest battery firmware update (V2.6) from DJI renders our L54P unusable. You will not be able to start/fly your DJI at all. If you upgrade/d to this latest firmware our battery will no longer work with the DJI Phantom 2, Phantom 2 Vision, or Phantom 2 Vision+. We are looking into this matter and we hope to have a fix available as soon as possible. If you want to continue using the L54P we suggest that you do not upgrade to the latest battery firmware (V2.6). If you have any questions or concerns please feel free to reach out to us at support@limefuel.com.

Thank You.
Saw this on another forum .

My Name is Rafael and I am on the product team for Limefuel. As you all know we are the manufacturer for the L54P Extended DJI Battery on Amazon (link http://www.amazon.com/Limefuel-Replacement-Quadcopter-including-Compatible/dp/B00M7F83KK). I am posting on here to make sure you are all aware of a current issue with DJI's new battery firmware update (V2.6). After some initial testing it seems that the latest battery firmware update (V2.6) from DJI renders our L54P unusable. You will not be able to start/fly your DJI at all. If you upgrade/d to this latest firmware our battery will no longer work with the DJI Phantom 2, Phantom 2 Vision, or Phantom 2 Vision+. We are looking into this matter and we hope to have a fix available as soon as possible. If you want to continue using the L54P we suggest that you do not upgrade to the latest battery firmware (V2.6). If you have any questions or concerns please feel free to reach out to us at support@limefuel.com.

Thank You.
Saw this on another forum .