Hello,
I am a beginner(!) in electronics and almost all of my electronics knowledge comes from the internet, so I am sorry if I am asking anything obvious.
I recently purchased one of these: aliexpress.com/item/1Pcs-Mini-DC-DC-USB-0-9V-5V-to-5V-Boost-Step-up-Power-Supply-Module/32383087922.html?spm=a2g0s.9042311.0.0.ACrgGt with the idea in mind that with this thing, I would be able to charge my phone with a couple (2-4) 1.5V AA batteries.
When had received the package, I made the following setup:
The usb voltage and current meter showed 4.6 Volts.
When I connected my USB LED, it worked just fine and the current draw was around 0.11 A.
After that I connected my phone. The device read 0.11 A.
I figured that maybe the batteries weren't able to provide the power necessary for the phone to be charged.
I connected another pair of the same batteries in series, and added them in parralel to the circuit. (that would make the possible current flowing into the voltage converter higher, right?) If I connected them in series, the voltage would become higher than 5 Volts and I don't think the voltage converter likes that.
The USB LED was still drawing 0.11 A.
My phone still didn't charge and the current I read off of the display was still 0.1 A.
Does anybody maybe know why my phone isn't being charged?
My guess: the power going into the converter is still too low, and my phone detects the low current coming through the charging port and stops any current from flowing. I could be totally wrong.
I barely know anything about electronics compared to most of the people on this forum so I am sorry if I offended anyone by writing here.
Greetings, Joep.
I am a beginner(!) in electronics and almost all of my electronics knowledge comes from the internet, so I am sorry if I am asking anything obvious.
I recently purchased one of these: aliexpress.com/item/1Pcs-Mini-DC-DC-USB-0-9V-5V-to-5V-Boost-Step-up-Power-Supply-Module/32383087922.html?spm=a2g0s.9042311.0.0.ACrgGt with the idea in mind that with this thing, I would be able to charge my phone with a couple (2-4) 1.5V AA batteries.
When had received the package, I made the following setup:
The usb voltage and current meter showed 4.6 Volts.
When I connected my USB LED, it worked just fine and the current draw was around 0.11 A.
After that I connected my phone. The device read 0.11 A.
I figured that maybe the batteries weren't able to provide the power necessary for the phone to be charged.
I connected another pair of the same batteries in series, and added them in parralel to the circuit. (that would make the possible current flowing into the voltage converter higher, right?) If I connected them in series, the voltage would become higher than 5 Volts and I don't think the voltage converter likes that.
The USB LED was still drawing 0.11 A.
My phone still didn't charge and the current I read off of the display was still 0.1 A.
Does anybody maybe know why my phone isn't being charged?
My guess: the power going into the converter is still too low, and my phone detects the low current coming through the charging port and stops any current from flowing. I could be totally wrong.
I barely know anything about electronics compared to most of the people on this forum so I am sorry if I offended anyone by writing here.
Greetings, Joep.