12VDC Power Supply with Solar Battery Backup

2021-09-06

Developing a power supply with UPS for the Internet Service Provider (ISP) Optical Network Terminal (ONT). The power supply will have battery backup. The battery will be maintained by a small solar panel and PWM Solar Charge Controller. The power supply system will be monitored by a Raspberry Pi.

Conceptual Diagram

Will use Renogy Wanderer 10 Amp PWM Charge Controller with Serial Modbus RTU Interface monitored by a Raspberry Pi Zero.

Materials List

• Renogy Wanderer 10Amp PWM Charge Controller
• Solar Panel 20Watt with PWM Controller
• VLRA Battery