I bought a Tecknet Powerbank 9000mAh in order to power my arduino Leonardo that I will use to record values on a scooter.
My problem is that a “powerbank” is mainly designed to charge a cellular phone and will detect when the phone is disconnected. The arduino draws very little current, so the powerbank auto shut off 30 seconds after powering.
I found this article on internet :
The guy who wrote the article have a R100 (0.1 ohm) resistor (current sensor) and replaced it with a 10 Ohms.
In mine, I found a big R050 resistor (0,05 ohms ?) near the 1A output plug. I replaced it with 6 ohms, 10, 20 and 30 ohms resistors, but nothing works, it still power off.
Here are two pictures of the powerbank. The resistor is near the usb port, just near the pen/sensor.
Does anybody have an idea for solving this problem ?
Thank you very much !