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My SuperSpark battery mod

carsco

Well-Known Member
Join
Jun 14, 2022
Messages
70
Age
42
This is my battery mod.
Have you ever seen such a thing?
😉


WhatsApp Image 2022-08-13 at 20.42.57.jpeg WhatsApp Image 2022-08-13 at 20.42.57 (1).jpeg
WhatsApp Image 2022-08-13 at 20.42.55.jpeg WhatsApp Image 2022-08-13 at 20.42.56.jpeg

25 minutes of fly in sport mode, not so bad.
Can charge (and balance) on original charging hub.
Can overcharge also on another charger.
Working retaining clips.
It connects like a normal battery, no velcro, no straps, nothing.
Perfect clearance under the drone.
No need to disable downward vision sensors.

Working battery telemetry but I've to reprogram circuit for new capacity, then I still fly in "not DJI battery" looking for voltage.
"Only" 371g MTOM perfectly balanced (2-3mm decentered on tail, compared to the original battery)
70km/h but with more inertia.

Motors RPM on range, no error messages.

Soon, Mavic Air propellers with 3D printed motor spacers.

vlcsnap-2022-08-20-15h49m49s754.jpg
 

carsco

Well-Known Member
Join
Jun 14, 2022
Messages
70
Age
42
I don't see why: 10 min, 20min, 30min... what the differences if you are flying?

Anyway, lipo temp it's about 20°C less then the original because the cells are cooled by air speed and propellers.

My mod it's much better than fly with a 180grams attached in parallel at 96 grams of original lipo, with a MTOM of 480grams!
Nothing gets hot with 370!

It's almost like flying normally, but with al little more of inertia.
 

dat1

Well-Known Member
Join
Dec 9, 2018
Messages
141
Loc
Quebec, Canada
I'm impress too. It is really 👍 "engineering"
Can we have more informations about the concept ?
 

carsco

Well-Known Member
Join
Jun 14, 2022
Messages
70
Age
42
Nice! I like how you left the XT60 plug still accessible.
Useful to monitoring max voltage during charge: "normal" lipo are not lipo-HV.
If you want, you can stop the charge when reach 12.8-9V.
 

shuggins

Well-Known Member
Join
Oct 11, 2018
Messages
57
Age
53
Loc
Grapevine, TX
Wow, you've attacked the one thing that I feel holds back the Spark...then 11-12 minute battery life. Once you get more figured out, would you consider documenting this so some of us could try as well? Thanks- you do a lot to help the Spark community. I really appreciate your help in the Spark "jumping" thread.
 

carsco

Well-Known Member
Join
Jun 14, 2022
Messages
70
Age
42
I will shortly be selling these batteries, with working telemetry and no need to use "non-DJI battery".
Simply plug it in and turn it on.

I spend a whole day to assemble a battery, without considering that a functioning battery worth 40-50 euros is sacrificed.
 

carsco

Well-Known Member
Join
Jun 14, 2022
Messages
70
Age
42
Really... I don't know if I'll sell them.

Costs are about EUR 50 (for the original battery), EUR 30 for the lipo, almost an entire working day with dremel, welder and superglue.

I don't know if there will be people willing to pay at least EUR 120 for a Spark battery.
 

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