About This

MPPT High-Efficiency Charging Built-in MPPT (Maximum Power Point Tracking) helps maximize solar panel charging efficiency; MPPT SET DIP switch lets you match the setting to your panel’s voltage for better harvesting.
Dual Input (Do Not Charge from Both at Once) Supports charging via 5-24V solar panel (DC-044 jack or terminal block) or 5V USB-C input—flexible for outdoor solar and indoor adapter testing.
Regulated Outputs: USB 5V + 5V/3.3V Headers Two 5V output ways: USB female port (5V/2A) plus 2.54mm headers offering 5V/2A and 3.3V/1A; total output power up to 10W.
Charge & Discharge Simultaneously + Flexible Battery Options Supports simultaneous charging and discharging; onboard 18650 holder plus PH-2P battery connector for external 3.7V Li battery/pack expansion.
Comprehensive Protections + Status Indicators Multi-protection (over-charge, over-discharge, over-current, reverse connection) with LED indicators; CHRG/DONE status pins and VBAT pins are brought out for MCU monitoring.