Can/will a lithium ion cellphone battery that can be charged at 2 amps safely discharge at 2 amps if used as a power source for a power bank? (Samsung galaxy S4 mini battery in particular)
I plan to convert a wired headset into a Bluetooth headset. I will use a Bluetooth PCB that requires 5V input and an amp (PAM8403) that also requires 5V.
I will use a power bank pcb to deliver 5V to reach component. The power bank requires a 3.7V lithium ion battery and outputs 5V 1A & 5V 2.1A.
Would a battery made for cellphone work safely in this build? The battery can output 3.7V. I can't find the discharge current for the battery anywhere but I know it can charge at 2A.
Finding a legitimate 18650 battery online is proving difficult so I'm considering a using phone battery.