E-V peak

Peter b · Apr 27, 2019

So I have one. The problem is there are no instructions because they aren't needed. However there is a concern. How does it work? I put just one battery in and some lights come on but after a long time it in red but I just shut it off. It was in there for over an hour and no charge so I charged it with the regular charger. What am I doing wrong?

terrence davidson · Apr 27, 2019

if this is e-v peak dy3 or dy5 insert battery and press button briefly to start charge or press and hold till it changes from charge to storage

Peter b · Apr 27, 2019

It's a dy3 but what button are you talking about. It says storage and there is a button on the left and one to the right of storage. That's it.

WTFDproject · Apr 27, 2019

Each button controls the battery on that side of the charger. Push the associated button to start the charge on that side.
See this video:

Peter b · Apr 27, 2019

I understand everything but those aren't the colors I got so now I will wait until the next charge. Thanks for your help. Peter

Mrgs1 · Apr 28, 2019

Peter b said:
So I have one. The problem is there are no instructions because they aren't needed. However there is a concern. How does it work? I put just one battery in and some lights come on but after a long time it in red but I just shut it off. It was in there for over an hour and no charge so I charged it with the regular charger. What am I doing wrong?

Are you referring to the screen warning which is red. Battery Damaged etc?

Eagle's Eye Video · Apr 30, 2019

To assist us in our analysis, @Peter b can you take a quick photo of what is showing on your charger?

Peter b · Apr 30, 2019

I will but the 2 batteries are fully charged and also thanks, will do it.

Steve Carr · Apr 30, 2019

If they are fully charged then you should plan to use them in the next couple of days. Otherwise, put them in storage voltage until you plan to fly. It takes about 40 min from storage to full charge and about 240 min from full charge to storage voltage.

Peter b · Apr 30, 2019

Thanks again and I'll give it ago.

Dave I · Jun 8, 2019

WTFDproject said:
Each button controls the battery on that side of the charger. Push the associated button to start the charge on that side.
See this video:

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When charging or dis charging for storage, should the cell readings all be about the same within a couple hundreths ? One yuneec pack has suddenly been showing the bottom cell reading different by up to a tenth (ie top three on the readout 4.02- 4.03 - 4.02 the bottom cell reading 4.15. Also the number next to the percentage of charge, is that the rate ? 1766 mAh.

Mrgs1 · Jun 8, 2019

Dave I said:
When charging or dis charging for storage, should the cell readings all be about the same within a couple hundreths ? One yuneec pack has suddenly been showing the bottom cell reading different by up to a tenth (ie top three on the readout 4.02- 4.03 - 4.02 the bottom cell reading 4.15. Also the number next to the percentage of charge, is that the rate ? 1766 mAh.

Should all be balanced at storage 3.80 volts approximately. And 4.2 volts fully charged.

WTFDproject · Jun 8, 2019

The 1766 mAh is the total capacity added to the battery for that charge. It will vary according to how far you drained in your last flight. It is also an indicator of battery health. As the battery capacity decreases with age, this value will begin to slowly decrease, and roughly corresponds to battery health.

Dave I · Jun 8, 2019

WTFDproject said:
The 1766 mAh is the total capacity added to the battery for that charge. It will vary according to how far you drained in your last flight. It is also an indicator of battery health. As the battery capacity decreases with age, this value will begin to slowly decrease, and roughly corresponds to battery health.

Thank You for the rapid response, I now understand the numbers, I am charging the pack now and will then put it into storage mode to see if the four cells equalize. Could one cell just charge faster than the other 3 ?

Mrgs1 · Jun 8, 2019

14.7 volts gives an ndication on mine to about 53% left so storage time is minimal to reach, not experienced cell voltage changes yet on any of my ten batteries yet, they all charge and discharge equally. Internal resistance test will reveal it's healh.

Mrgs1 · Jun 8, 2019

Dave I said:
Thank You for the rapid response, I now understand the numbers, I am charging the pack now and will then put it into storage mode to see if the four cells equalize. Could one cell just charge faster than the other 3 ?

Yes they do a bit.