Hello Tello Pilot!
Join our DJI Tello community & remove this banner.
Sign up

Battery not fully charging

Chrislaf

Well-known member
Joined
Nov 13, 2018
Messages
60
Reaction score
24
Location
Barrie, Ontario
How long is the warranty on Tello batteries? I have 3 batteries that came in the boost package When I got my Tello just before Christmas. Went to charge one in the 3 battery charger that came with the boost kit. It gave me a red light on charger after a period of time. Tried again and same thing. Put in Tello and it had a charge that lasted a couple of minutes at most. Put back in charger and remained at charging stage (flashing green light) for hours and hours before giving a red light again. Is the battery toast? If so sure didn’t last long. Can it be replaced under warrantee?

Chris
 

Flydrone

Well-known member
Joined
Oct 29, 2018
Messages
280
Reaction score
127
Age
37
Location
Italy
Have you tried charging the "diffettosa" battery directly on the Tello? it could also be the UHB charger on the panel that has a defective port ...
I also have this original Dji charger with 3 charging outputs, which charges one battery at a time, starting with the one with a higher voltage than the others. have you tried to insert the "diffettosa" battery in the charger trying all three outputs?


Use a micro usb charger (from a Smartphone) with at least 2 Amps and a charging cable suitable for the 2 A power supply of these HUBs is very important. requires incoming = 5 Volt 3 Amp Max.

Let's talk about this charger right?

Senza-titolo-1-6.jpg
 
Last edited:

Chrislaf

Well-known member
Joined
Nov 13, 2018
Messages
60
Reaction score
24
Location
Barrie, Ontario
Have you tried charging the "diffettosa" battery directly on the Tello? it could also be the UHB charger on the panel that has a defective port ...
I also have this original Dji charger with 3 charging outputs, which charges one battery at a time, starting with the one with a higher voltage than the others. have you tried to insert the "diffettosa" battery in the charger trying all three outputs?

Use a micro usb charger (from a Smartphone) with at least 2 Amps and a charging cable suitable for the 2 A power supply of these HUBs is very important. requires incoming = 5 Volt 3 Amp Max.

Let's talk about this charger right?

View attachment 3732
Thanks for your reply. I have tried all three ports on the charger. I’ll try changing the cord and see if that works - maybe it went bad. I’ll also try in the Tello.

Chris
 
  • Like
Reactions: Flydrone

Chrislaf

Well-known member
Joined
Nov 13, 2018
Messages
60
Reaction score
24
Location
Barrie, Ontario
Well today I tried charging the battery in the hub but used the USB power block from my Spark instead of the dual port generic USB one I had been using and it charged up to a solid green light. Haven’t had a chance to try it in the Tello yet to see if it charged fully. I’ll try tomorrow.
 

Flydrone

Well-known member
Joined
Oct 29, 2018
Messages
280
Reaction score
127
Age
37
Location
Italy
If you have the chance, you can try using a multimeter to check the battery voltage at the end of the charge ...
From pin 1 positive and pin 3 negative, about 4.35 volts should be read.

3741
 

Chrislaf

Well-known member
Joined
Nov 13, 2018
Messages
60
Reaction score
24
Location
Barrie, Ontario
If you have the chance, you can try using a multimeter to check the battery voltage at the end of the charge ...
From pin 1 positive and pin 3 negative, about 4.35 volts should be read.

View attachment 3741
Don't have a multimeter but I flew the battery today and I got over 9 minutes of flight time, so it seems it is working again. It's currently charging so hopefully it is ok and I won't have to purchase anther one.

Chris
 
  • Like
Reactions: Flydrone

Flydrone

Well-known member
Joined
Oct 29, 2018
Messages
280
Reaction score
127
Age
37
Location
Italy
strange ... so with that power supply I can't power the Tello charger, but quietly loads the power bank?
 

New Threads

Members online

Forum statistics

Threads
2,771
Messages
21,773
Members
6,672
Latest member
SkyNaras