Av1vA Posted at 5-28 23:17
Thanks. Yeah makes sense. I just am annoyed that @dji provide a RC controller basically without a cord that charges it correctly (potentially without ruining the batteries if you use the usb c. They should be including both usb c to c and usb c to a with one labelled drone and one labelled RC if our/your theory is correct. Its not good.
Hi.
You will not ruin the batteries by using USB C to C PD protocol high output charger. The RC will only allow a maximum input to keep the batteries healthy. Below is what I have measured with my power tester
Using a 67W PD / 18W QC wall charger 67watt wall charger Amazon.caProduct: 67W PD 2-Port GaN Wall Charger Mode: TV-PC005 Input: 100-240V~ 50/60Hz 2.5A Max PD Output: 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A, 20.0V⎓3.25A, 20.3V⎓3.3A, 67W Max. QC Output: 5V⎓3A, 9V⎓2A, 12V⎓1.5A, 18W Max. PD+QC Output: PD 45.0W (5.0V⎓3.0A, 9.0V⎓3.0A, 12.0V⎓3.0A, 15.0V⎓3.0A, 20.0V⎓2.25A) + QC 12.0W (5.0V⎓2.4A) 57.0W Max. Total Output: 67W Max When using the USB C to C PD output and the RC controller power off the power flow is 14.8 watts ( 5.3 volts at 2.8 amps) and the lights flash fast. Fast flashing lights indicate you have a high output charger connected but the RC is only allowing a certain amount in.
When using the USB A to C QC port the and the RC controller power turned off the power flow is 11.78 watts ( 5.19 volts at 2.27 amps) and the lights flash slower.
You can also charge the RC while it is turned on which is useful in the field to recharge while you are flying if you have a power bank . With the controller turned on the charge rate is around 5 watts and I assume the rest is used to power the operation of the controller.
Also be aware the drone ( M3P, have not tested others) and the charging hub have different maximum rates of charging the batteries and also limit the power going in. Best speed charging rate will be with a charger that has a 12 volt protocol but it will also use 9 volt if the charger doesn't have 12v but the maximum rate will be slower at 9v.
Drone will charge the batteries at a max rate of 30watts if the charger has a 12v protocol and the charging hub will charge at a max rate of 36 watts with a 12 volt protocol. The charger I linked above will charge the drone batteries at the max rate either in the drone or the charging hub and will charge the controller at the same time at 12w.
I also use this power bank to charge when out in the field and it works well to charge both the drone batteries and the RC.
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