Welcome Inspire Pilots!
Join our free DJI Inspire community today!
Sign up

Change of the voltage balance of each cell during the recallibration process

Joined
May 22, 2015
Messages
83
Reaction score
28
Hi. During the recallibration of the TB47 battery all six cells were showing nearly even level of the voltage (the difference was 0.01V). Then when the voltage was about 3.6V at each cell the difference changed to 0.06V. My question is: Is it normal state?
Another issue is the temperature. When the Pilot App showed about 32°C at the end of the recallibration the data from FLYTREX shows 57°C. My second question is: Why the App and the Flytrex show different temperature?
 

Attachments

  • Like
Reactions: nandoarr
Joined
Jul 5, 2015
Messages
3
Reaction score
1
Age
45
Looking for the answer to this as well. My batteries are new (less than 3 charges) and the voltage drop issue has happened to me (although not in flight), so after the FW upgrade I am in the process of re-calibrating.

After cycling I am also seeing a split. 4.31V lowest/ 4.36V highest.
Scared to use these batteries until I see a definitive answer.
 
  • Like
Reactions: nandoarr
Joined
Jul 21, 2014
Messages
62
Reaction score
4
Hi

I'm having the same issue with a difference in the battery temp and the flytrex temp. I have another thread going because of my voltage changing from green to yellow after takeoff on three batteries. I have just installed the flytrex and am wondering if this might have something to do with it. I have attached some pictures. Did you ever get your issues resolved?
 

Attachments

  • Like
Reactions: nandoarr
Joined
Mar 29, 2015
Messages
1,262
Reaction score
594
Location
Buckie, Scotland, UK
Website
www.moraysky.co.uk
I don't have Flytrex so I must ask if it is battery temperature that it is recording. 57C sounds excessive but what is your ambient air temperature? The GO app temperatures do look a little low if taken after the battery has been running. Even at an ambient temp of 15C I see battery temperature in the range 40-45C. Most cell voltages should be within 0.1V of each other although I have a weak cell in one battery that is 0.18v lower than the rest. I am monitoring that before and after every flight and if I see a decline in that cell voltage or battery performance then I will withdraw it.
 
Joined
May 22, 2015
Messages
83
Reaction score
28
Hi

I'm having the same issue with a difference in the battery temp and the flytrex temp. I have another thread going because of my voltage changing from green to yellow after takeoff on three batteries. I have just installed the flytrex and am wondering if this might have something to do with it. I have attached some pictures. Did you ever get your issues resolved?
The difference in voltage is normal at low values. As to the temperature showed by Flytrex I think that it is overestimated by about 10°C.
 

New Threads

Members online

Forum statistics

Threads
19,746
Messages
193,022
Members
29,115
Latest member
Infrared Aerial