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

H plus charger only balance

Joined
Dec 15, 2015
Messages
14
Reaction score
1
Age
38
I need your help. today I put my batteries to charge and the charger does not go from balancing. I tried my three batteries and the same thing happens.
Help me
 

Steve Carr

Missed Approach
Staff member
Premium Pilot
Joined
Dec 15, 2015
Messages
7,311
Reaction score
3,675
Location
Bessemer, MI
Did you unplug the charger and then plug it back in?
What is the light sequence that you see?
 

Steve Carr

Missed Approach
Staff member
Premium Pilot
Joined
Dec 15, 2015
Messages
7,311
Reaction score
3,675
Location
Bessemer, MI
yes, unplug it and plug it in again, several times, it is flashing green and red.
Clean the small pins on the charger and the batteries with a pencil eraser. Then plug in a battery and leave it even if the red/green led's are flashing. That may be perfectly normal operation. Balance charging is a function of the charger.
 

DoomMeister

Moderator/Tech Junkie
Staff member
Premium Pilot
Joined
Dec 25, 2017
Messages
4,412
Reaction score
2,238
Location
Florida’s Friendliest Hometown
Clean the small pins on the charger and the batteries with a pencil eraser. Then plug in a battery and leave it even if the red/green led's are flashing. That may be perfectly normal operation. Balance charging is a function of the charger.
If the batteries were charged to full capacity and stored, they may be at a charge level where all that is needed is to balance the cells.

I would strongly urge you to get a charger that allows you place the batteries at storage charge when not in use.
 
Joined
Dec 15, 2015
Messages
14
Reaction score
1
Age
38
Clean the small pins on the charger and the batteries with a pencil eraser. Then plug in a battery and leave it even if the red/green led's are flashing. That may be perfectly normal operation. Balance charging is a function of the charger.
Thank you very much, I'm going to do it, I understand that the balance process is normal but it has remained in that state for approximately 4 hours.
 
Last edited by a moderator:
  • Wow
Reactions: Steve Carr
Joined
Dec 15, 2015
Messages
14
Reaction score
1
Age
38
If the batteries were charged to full capacity and stored, they may be at a charge level where all that is needed is to balance the cells.

I would strongly urge you to get a charger that allows you place the batteries at storage charge when not in use.
Thanks for the response, is it normal to remain in balance mode for 4 hours? Can you explain to me about the charger you mention? Cheers
 

DoomMeister

Moderator/Tech Junkie
Staff member
Premium Pilot
Joined
Dec 25, 2017
Messages
4,412
Reaction score
2,238
Location
Florida’s Friendliest Hometown
Thanks for the response, is it normal to remain in balance mode for 4 hours? Can you explain to me about the charger you mention? Cheers
Being in balance mode that long leads me to speculate that you have battery packs with cells of greatly different internal resistance.

1579450849586.png
Take notice of the pins in this adapter cable (photo from Yuneec.pl website) for the TH Plus/H520 batteries. The outer connectors are the main +/- terminals that on the battery connect to the aircraft to provide power. The terminal that is perpendicular to the others is the V+ and the one that is parallel is V-. The others are terminals between cells that allow balance charging.

You can use a voltmeter to measure the cell voltages. They should measure within 0.01V of each other. Measure from the V- terminal to the next terminal being careful not to short the test leads. Then move to measure between the 2nd and 3rd terminals, 3rd and 4th, and lastly 4th to 5th. If you are seeing variances of 0.1V or greater the batteries are likely damaged to a point they will not balance.

Another thing to consider with the OEM charger is to firmly push the battery into the charger to ensure it is fully seated on the contacts.

For a start with third party chargers to use and learning how to properly care for the LiPo batteries see this thread. LiPo battery care

Battery.jpg
 
Last edited by a moderator:

Mrgs1

Premium Pilot
Joined
Oct 2, 2018
Messages
3,013
Reaction score
1,213
Age
54
Location
Uk
The above cable can be used, the smaller black balance plug inserts in the side, with a battery checker, a simple device which gives you the essential info on voltages etc, a while back Steve Carr mentioned them I bought a couple so far so good.
 
  • Like
Reactions: Steve Carr

Steve Carr

Missed Approach
Staff member
Premium Pilot
Joined
Dec 15, 2015
Messages
7,311
Reaction score
3,675
Location
Bessemer, MI
The above cable can be used, the smaller black balance plug inserts in the side, with a battery checker, a simple device which gives you the essential info on voltages etc, a while back Steve Carr mentioned them I bought a couple so far so good.
You can also check the internal resistance of each cell.
 

Mrgs1

Premium Pilot
Joined
Oct 2, 2018
Messages
3,013
Reaction score
1,213
Age
54
Location
Uk
You can also check the internal resistance of each cell.
it can be hit and miss whether you get the models to measure IR, even though in the description they say they perform that function. Good old Amazon.
 
  • Like
Reactions: John Hennessy

Steve Carr

Missed Approach
Staff member
Premium Pilot
Joined
Dec 15, 2015
Messages
7,311
Reaction score
3,675
Location
Bessemer, MI
it can be hit and miss whether you get the models to measure IR, even though in the description they say they perform that function. Good old Amazon.
I think there are two versions of that meter. I looked for the one that specifically mentions battery IR function.
 
  • Like
Reactions: John Hennessy

New Threads

Forum statistics

Threads
17,771
Messages
208,424
Members
20,550
Latest member
gonzalocapri