DJI Avata Charger : Battery Monitoring

Have you ever wanted to monitor the charge of your DJI Avata battery ?

Have you ever wanted to automatically stop the charge at any percentage you want for storage ?

(without letting the "smart" DJI battery to charge 100% and then to self discharge to 60%...)

Keep the hand on your battery : it's simple.

Details on my hackaday's project : https://hackaday.io/project/189188-dji-avata-smart-smart-charger

Video of the device running : https://youtu.be/21gmuOZC5eo

Video "outside the box" : https://youtube.com/shorts/oBY43TFwshM

An ESP32 simply monitors the charging parameters which are sent to an android application written in B4X language.

It gives access to :

• current
• voltage + indivual voltage of each cell
• capacity of the battery (remain and full charge)
• percentage of charge
• temperature

You can set an end of charge percentage to stop the charge automatically for storage mode.

Works with Avata's chargers without modification.

Most of the credits go to Aircuiser. He reversed ingeneered the DUML protocol between smart charger and smart battery. Impressive job done !

See his channel on youtube : https://www.youtube.com/@AirCruiserFPV

and on hackaday : https://hackaday.io/project/184677-dji-fpv-battery-breakout-mod-1-first-tests

and the full discussion on discord : https://discord.com/channels/849931046883819550/960489098315968572

Print Settings

Printer Brand:

Prusa

Printer:

i3 MK2S

Rafts:

No

Supports:

No

Resolution:

.3mm

Infill:

20

Filament: none PLA black Post-Printing =============

position the 2 XT30 connectors into the 3D pronted part. Solder + to + and gnd to gnd without margin to avoid motion of the connectors

then add the "dupont" wires male and female, solder the pins following the schema.

Glue everything in place with epoxy

Then add the covers and glue them. Use piece of PLA filament to help positionning.

The "lid" slides into the box and snaps to close. No screw ! Can be re opened.