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Panels

To buy: https://www.i4wifi.cz/Solarni-panely-1/Solarni-panely/Solarni-panel-GWL-Sunny-Mono-300Wp-60-cells-MPPT-32V-celocerny-EUFREE.html

Batteries

LiFePO4 5s To buy: 5x https://www.ev-power.eu/LiFePO4-small-cells/LiFePO4-High-Power-Cell-3-2V-20Ah-Alu-case-CE.html

Charger MPPT

https://github.com/lucansky/BrainDeadMPPT

Balancing

Make PCB with ISL94202

Pics