I'm working on a project where I'm going to charge a battery using a solar cell. The cell is capable of outputting a maximum of 4 A, but only 0.5 volts (2W).
My question is, how can I charge the battery with only one cell? I understand I'll have to step up the voltage in some way, but I'm not sure how. I read that I can use boost converters, but don't these need a steady voltage for them to work properly? The solar cell probably won't be outputting its max voltage output all the time.
Ideally, I can regulate the voltage output of the cell to something like 2.4 volts (a single battery is rated at 1.2 volts).