A little theatrical performance but he gets his point across. Something we have suspected for some time now.
Solaris8x86 views on the Parrot Anafi crash's(5/Nov)
- Thread starter Jagerbomb52
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Liger 1956
Well-known member
Very thorough and informative. I wonder what firmware version the Anafi was on and whether that makes a difference to the voltages at the various FF6 stated % left figures. It is helpful seeing the battery opened up and knowing that the cells can be replaced without the charging circuit being "bricked".
Interesting to watch. And where to buy those batteries which are just at the good size?
He sell them, but what a price !
He sell them, but what a price !
If you look on his youtube channel he has a link to the cells. Pretty expensive as he is trying to sell his mod for the SC3 at the same time.
Yes, that’s what i have seen.
I’m not interested in this mod, but thoses cheap cells are interresting.
Not easy to find where he bougt those cells...
I’m not interested in this mod, but thoses cheap cells are interresting.
Not easy to find where he bougt those cells...
ROBANAFI
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The mod-batteries he is selling seem a bit expensive and its almost like he's trying to scare us into buying them?
I've only had one true "fall out of the sky" and that was on fairly new batteries. My recent issue was autolanding at 70% battery and unless i'm missing something this video doesn't cover that?
I've only had one true "fall out of the sky" and that was on fairly new batteries. My recent issue was autolanding at 70% battery and unless i'm missing something this video doesn't cover that?
Since the very beginning, we’ve been asking for a screen that would show us the discharge of both cells (not an ‘overall percentage for both cells’)
DJI drones do show this information.
... an interesting video that could explain why we do not see the discharge per cell...
DJI drones do show this information.
... an interesting video that could explain why we do not see the discharge per cell...
Maybe those batteries are the same...
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Liger 1956
Well-known member
So how does the app decide what the % of battery to display? Based on Solaris8x86's video it does not appear to be based on battery voltage otherwise both of his tests should give the same % to battery voltage correlation. Is the app checking the battery voltage at power up, relating that to a capacity and then using the wattage used to calculate the % battery power left?
Not sure.
The video has got one with wrong.
While the Anafi battery level management is broken - as at 3v per cell why the battery logic still thought there was 23% charge remaining is plain wrong.
My issue with the video is that testing was done with faulty batteries - hence the 23% battery level voltage was 3v.
3.2v is the lowest safe voltage LiPo cells should be discharged down to, and that is where I generally have my low V alarms set on my other RC stuff.
When the cells in the battery were replaced with fresh cells, the Anafi landed and switched off at 2% battery level which according to the video was at 3.273v - I don't see any issue with that.
I never go below around 25% and going by the video it equates to 3.6v which is perfectly fine between useable flying time and battery health.
Yes slightly - cells of that size and capacity cost around US$ 6 each
However not seen that size before 10mm thick, 31mm wide, 72mm long (fbc1003172 from video). Possible they are a custom wrap which may push the cost up to around US$ 12 each (depending on qty ordered or course).
zandoli
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My sentiments exactly. I now understand why we cannot view the cell info in FF6.
zandoli
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We now know that the cells can be changed out without bricking the board.
Adding a balance port will make this mod perfect.
parrotpilots.com
Adding a balance port will make this mod perfect.
Battery Enclosure Removable?
Couldn't find any thread talking about how to open up the enclosure for the battery. Anybody done it that could share the procedure?
parrotpilots.com
Attachments
Interesting!
It explains the "fell out of the air" below 30%
But not explaining the 50-80% "fell downs"
But it shows a serious problem in the Anafi design!
And might be one reason, that the "USA" is back to 3 cells!
Edit - And taking the "sound cell management" in account: Landing at 40+ %, to keep the battery alive, makes the Anafi a 12 minute flighttime Drone
zandoli
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I believe charging with a balance port will extend the life of the cells because the cells stay cool during charging. When charging using USB C the top of the casing gets warmer/hot., This additional heat must have an effect on the cells.
Would be interesting to tell whether it is the cell closer to the electronics to the top of the battery which usually fails first.
Would be interesting to tell whether it is the cell closer to the electronics to the top of the battery which usually fails first.
Thanks Solaris for those explanations.
So, what i’m thinking about, now, is how to maintain a minimum voltage (6,1v if i understand well) to the anafi motherboard, which won’t cut off all power instantly..
It needs an additional battery, certainly
So, what i’m thinking about, now, is how to maintain a minimum voltage (6,1v if i understand well) to the anafi motherboard, which won’t cut off all power instantly..
It needs an additional battery, certainly
I see two problems with what @solaris8x86 is offering.
1st. I have three batteries all of which work just fine so far. So my issue would be how to check each one that might need replacing without have a crash to find that bad battery.
2nd. Problem is after 6 months or even a year and I need more cells replaced and I already have the SC3 mod from the first purchase there must be a lower priced option to get the spare cells or he will not have returning customers which is not good business planning.
1st. I have three batteries all of which work just fine so far. So my issue would be how to check each one that might need replacing without have a crash to find that bad battery.
2nd. Problem is after 6 months or even a year and I need more cells replaced and I already have the SC3 mod from the first purchase there must be a lower priced option to get the spare cells or he will not have returning customers which is not good business planning.
Liger 1956
Well-known member
As everyone uses their Anafi differently and therefore will drain the batteries to different levels unfortunately there will never be a "safe" figure at which to land. Some may consider the value stated in the video to be very conservative but you must decide yourself whether you want long flight times or long battery life. @solaris8x86 appears to have developed some very clever software his "Performance Enhancement Suite" (PES) that allows him access to the inner workings of the Anafi in order to be able to compare the battery voltages against the FF6 battery % readings whilst the Anafi is flying. Whilst we could fly the Anafi down to a certain % remaining battery, turn off the Anafi and measure the voltage left in the cells it would only be a resting voltage, higher than whilst flying, as the battery voltage will sag during flight dependant on the current draw and the batteries internal resistance.
I do not know whether @solaris8x86 would sell copies of his PES software to enable us to determine whether we have damaged our batteries and also to ascertain the FF6 stated % battery remaining value that we are happy with flying until.
I do not know whether @solaris8x86 would sell copies of his PES software to enable us to determine whether we have damaged our batteries and also to ascertain the FF6 stated % battery remaining value that we are happy with flying until.
Fox Fader
Active member
I've now been flying down to 50% changing locations and battery and flying it down to about 50%. I did this on Wednesday which seems to be best... Till Parrot gets us all new batteries. ?
