I will power a Raspberry PI with 4 NIMH batteries, but they quickly lose charge, and end up at 3V instead of the 5V needed. I was wondering about a DC-DC step up converter.
I want a converter that will have a fixed output and will not be affected by the input voltage. E.g. This may transform 3V to 5V, but when the batteries are fully charged at 5V, I want the converter to output 5V too rather than 7V for example which will damage the PI.
I was thinking of using this converter, would this work? XL6009 DC-DC Step Up Boost Voltage Converter Power