Battery mod thread
- Thread starter Justinswidebody
- Start date
The three batterys have more than one cycles. I think I’ll have to buy a new one.
But I updated my drone with battery to 300, and i have not warning about updating battery. This is work too. I replaced 18650 and it work, not blocked.
Sanyo ncr18650ga. And I want test sanyo 20700, this size fits as native battery box. Original battery plastic box size over 73mm x 43mm
good for thisThat's awesome!!! Looks clean... I'm getting ready to do this as soon as I figure out the right battery to buy lol, I noticed you're in Ocala! We have a small FB group called "citrus county drone racing and freestyle" check it out. We should fly sometime!
Fly time with Sanyo ncr18650ga?Sanyo ncr18650ga. And I want test sanyo 20700, this size fits as native battery box. Original battery plastic box size over 73mm x 43mm
In this video, what firmware update are you on? Are you flying without any updates?
I didn't realize anyone raced drones around here. I used to build race drones but never had anyone to fly with. Even built a race course around the farm I live on. It's not up anymore though.
[QUOTE="Justinswidebody, hi, this is by far one of the most interesting thread on Mavic Mini ! Thanks admins for having accepted me.
I'm new to MM and still have to wait Christmas to get the mini ?.
However, I'm not new neither to rc nor to electronics...
I would like to first understand what are the functions implemented in the battery Bms ? Can we charge the batt with an external smart charger adapted to liion ?
I understand from the pinout drawing that the middle junction of the 2S cells is not accessible ? Is it ?
Do you think the 2 data lines are I2C or SPI data and clock lines ? If yes could we spy the bus to reverse ingeeneer the trafic ? The goal being to get rid of the stock BMS coding a kind of stub on a cheap microcontroler....
Well it's good to dream ?
I'm new to MM and still have to wait Christmas to get the mini ?.
However, I'm not new neither to rc nor to electronics...
I would like to first understand what are the functions implemented in the battery Bms ? Can we charge the batt with an external smart charger adapted to liion ?
I understand from the pinout drawing that the middle junction of the 2S cells is not accessible ? Is it ?
Do you think the 2 data lines are I2C or SPI data and clock lines ? If yes could we spy the bus to reverse ingeeneer the trafic ? The goal being to get rid of the stock BMS coding a kind of stub on a cheap microcontroler....
Well it's good to dream ?
its not my video, i just post it here because the guy added a external battery
he said that he will explain in a future video how did he do it
There are already chargers available that use only 2 wires to change the Mini's Batteries. Example here.
As for the pin out you can ask Justinswidebody as he is the expert who works on this. Look at post #59
For any batteries. You can change 18650 to vtc6 or others if power is maintained on bms. Its easy
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