A simple solar MPPT (maximum power point tracking) charge controller for lead acid batteries:
- Overcharge protection
- Swich for load
- 0.96" I2C OLED
- Charge pump for mosfet driver
Unfortunately I only have some hand-drawn schematics
See video: https://www.youtube.com/watch?v=vidzGq0El-U&lc=UgzTLPEktr6r6EbFqI54AaABAg