Hello Fellow Yuneec Pilot!
Join our free Yuneec community and remove this annoying banner!
Sign up

Won't fully charge

Joined
Mar 29, 2018
Messages
1,254
Reaction score
222
Age
70
My Duo T240 charger
Will not fully charge
My ST-16 Battery like
My stock charger does.
Hmmmmm
Only to 95% my stock
Charger will charge it
To 100% go figure.
Keith Kuhn
 
Joined
Jun 6, 2018
Messages
313
Reaction score
170
Age
23
Location
Hamburg, Germany
How do you know it did only charge 95%?

I guess you used one of those battery testers? They do only measure the voltage and are usually not very accurate. Furthermore it might be possible that your charger isn't 100% accurate as well so that the cutoff voltage is a little too high or too low. The OEM charger is actually quiet good. At least in terms of quality. The functionality is obviously very limited. I would not be surprised if the electronics are more precise than those of the T240.

If your battery is already a little worn, the voltage might also drop a little after it has been charged. Depending on how long you waited until you measured the battery, the voltage could have dropped a bit more.
 
  • Like
Reactions: KEITH KUHN
Joined
Oct 2, 2018
Messages
3,328
Reaction score
1,409
Age
56
Location
Uk
I just keep them fully charged in the controller, after a flight just hook them up with usb cable and it charges, you may have to wait on hour or so to charge, nothing is 100% accurate, if it's in the high 90s between 95 -98..% after boot up, I'm not too concerned. If it's running down dramatically which you will notice then get a new battery.
 
  • Like
Reactions: KEITH KUHN
Joined
Mar 29, 2018
Messages
1,254
Reaction score
222
Age
70
How do you know it did only charge 95%?

I guess you used one of those battery testers? They do only measure the voltage and are usually not very accurate. Furthermore it might be possible that your charger isn't 100% accurate as well so that the cutoff voltage is a little too high or too low. The OEM charger is actually quiet good. At least in terms of quality. The functionality is obviously very limited. I would not be surprised if the electronics are more precise than those of the T240.

If your battery is already a little worn, the voltage might also drop a little after it has been charged. Depending on how long you waited until you measured the battery, the voltage could have dropped a bit more.

I think you nailed it.
More testing to do.
It read 100% last week on the controller.
It may be worn. I must check my other Batt.
I think you n nailed it though.
I just took it off my
Stock charger 95%
Most likely worn.
Keith
I just keep them fully charged in the controller, after a flight just hook them up with usb cable and it charges, you may have to wait on hour or so to charge, nothing is 100% accurate, if it's in the high 90s between 95 -98..% after boot up, I'm not too concerned. If it's running down dramatically which you will notice then get a new battery.

I agree totally.
I bought the Dou t 240
So I could put my stocker
Away.
All will be ok.
Thanks for your input.
Keith
 

New Threads

Members online

Forum statistics

Threads
20,053
Messages
231,930
Members
24,410
Latest member
heiko-123