Hi
I'm planning on using an old cellphone as a screen in a DIY project (ie. the phone will be functioning as normal with some video playback running)
I don't want to leave the battery in the phone, I'm assuming it'll eventually burst from constant charging cycles, but this phone won't boot unless it detects a battery. So I built a battery eliminator using a 4.3V supply attached to the header/connector which I've carefully removed from the existing battery.
It works great - the phone thinks it has a battery at 80-90% charge and runs fine.
But... to make the phone boot on demand I need to provide power to the USB port (I can just turn it on for a few seconds then off).
I know nothing about battery/charging technology - is there any kind of risk to doing this? The 4.3V supply will presumably have current coming into it from the phone as it thinks it needs to charge the battery.
I'd assume that including a diode in the circuit should prevent this but, being more a software guy, I wouldn't know which type to use.
Any help would be appreciated!
I'm planning on using an old cellphone as a screen in a DIY project (ie. the phone will be functioning as normal with some video playback running)
I don't want to leave the battery in the phone, I'm assuming it'll eventually burst from constant charging cycles, but this phone won't boot unless it detects a battery. So I built a battery eliminator using a 4.3V supply attached to the header/connector which I've carefully removed from the existing battery.
It works great - the phone thinks it has a battery at 80-90% charge and runs fine.
But... to make the phone boot on demand I need to provide power to the USB port (I can just turn it on for a few seconds then off).
I know nothing about battery/charging technology - is there any kind of risk to doing this? The 4.3V supply will presumably have current coming into it from the phone as it thinks it needs to charge the battery.
I'd assume that including a diode in the circuit should prevent this but, being more a software guy, I wouldn't know which type to use.
Any help would be appreciated!