Battery mod thread

[Justinswidebody]

Anybody knows the + and - pins from bird battery connection? I’m gonna make a clip for test with dual battery. Do you think MM can fly with extra 100gr?

 

[Justinswidebody]

Anybody knows the + and - pins from bird battery connection? I’m gonna make a clip for test with dual battery. Do you think MM can fly with extra 100gr?

Yes it can fly with quite a bit more. I've tested it up to 180gram payload

 

[Marcuchinonis]

Dual 21700 battery? Fly time?

 

[aeropic]

Anybody knows the + and - pins from bird battery connection? I’m gonna make a clip for test with dual battery. Do you think MM can fly with extra 100gr?

The connector pinout is
Data - + + - data

 

[Justinswidebody]

Dual 21700 battery? Fly time?

Dual 21700 on the sides causes compass error. Plus the mini doesn't like much more than 200 grams in battery including the stock battery... I've found best flight times is with a single pack of 21700.

 

[Marcuchinonis]

Hello.
Thanks about all information.
Tomorrow I'll give you data about flytime

 

[Justinswidebody]

Hello.
Thanks about all information.
Tomorrow I'll give you data about flytime

Looks great! Please keep us updated on your results

 

[Tesla Hertz]

I am working on this fun battery project as well, i must have 6 different 18650 sets.
So i gather more weight drains the batteries faster ?

 

[Collyde]

Interesting, it seems dji only charges their batteries to 4v per cell equalling 8volts and only discharges it to 3.5volts per cell equalling 7volts.

These batteries can be charged to 4.2volts per cell and discharged to 2.5volts per cell. I wonder why they're being so conservative....

It's a method used by Tesla and other manufactures wanting to extend the lifetime of LithiumIon cells.

 

[mavicn00b]

It's a method used by Tesla and other manufactures wanting to extend the lifetime of LithiumIon cells.

Tesla may do this but DJI dont, they're more than happy to sell you a new overpriced battery.
The 2400mAh variants are LiIon 18650's and I see them charged to 8.3v or 4.15v/cell. They seem to discharge to about 3.2-3.3v/cell on a regular flight (20% landing).
The 1100mAh Japanese variants are regular LiHV cells charged to 8.7v or 4.35v/cell

 

[Justinswidebody]

The bms will let you overcharge to 4.5v per cell before giving power error

 

[Marcuchinonis]

Hey, with LG 10A at cell level doesn’t works. Only 20 min fly time. I’ll try with Sony 30A at cell level. News soon

 

[Justinswidebody]

Hey, with LG 10A at cell level doesn’t works. Only 20 min fly time. I’ll try with Sony 30A at cell level. News soon

Keep us updated!

 

[Marcuchinonis]

Keep us updated!
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Keep us updated!

with Sony 3000 30A works better than LG with, but when 25 min fly time, land is forced, at 3,49V. External battery al cell level doesn’t increase fly time.

 

[Marcuchinonis]

After, I’ve tried to change stock Samsung cells with Sony (ones), like Androsean does on YouTube. My bms (never updated) doen’t switch’s on. Is there any way to fix? I’ve tried conecting Samsung stock cells again, but all keeps the same: no switch on. I’ve seen, when I connect the miniusb to dron to chargue, Leds do like normal charging, but slower. When I unplug the usb, is not possible to switch on the dron. Any idea?

 

[Justinswidebody]

After, I’ve tried to change stock Samsung cells with Sony (ones), like Androsean does on YouTube. My bms (never updated) doen’t switch’s on. Is there any way to fix? I’ve tried conecting Samsung stock cells again, but all keeps the same: no switch on. I’ve seen, when I connect the miniusb to dron to chargue, Leds do like normal charging, but slower. When I unplug the usb, is not possible to switch on the dron. Any idea?

Put battery in mini and plug it into micro USB .. let it try to charge for about 20 seconds and see if it works

 

[Tesla Hertz]

After, I’ve tried to change stock Samsung cells with Sony (ones), like Androsean does on YouTube. My bms (never updated) doen’t switch’s on. Is there any way to fix? I’ve tried conecting Samsung stock cells again, but all keeps the same: no switch on. I’ve seen, when I connect the miniusb to dron to chargue, Leds do like normal charging, but slower. When I unplug the usb, is not possible to switch on the dron. Any idea?

looks like he only got 29 mins youtube russian .

 

[Justinswidebody]

I will do a time test tomorrow, let's see if anyone can spot the difference.......

 

[Deadjim Zudovex]

new props? whats your best time with the standard propellers again?

 

[Justinswidebody]

new props? whats your best time with the standard propellers again?

I've gotten 45min with stock props.
This is parrot anafi motors and props.