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This solar power management module is designed for 6V-24V solar panels.
It can charge a 3.7V rechargeable 14500 Lithium-ion battery (battery not included) or other 3.7V Li-Ion batteries via the PH2.0 connector via a solar panel. The USB connection and pin headers provide a regulated 5V 1A output.
The module features MPPT (Maximum Power Point Tracking) function and multi-protection circuits, making it able to keep working with high efficiency and stability.
The module is suited for solar-powered, low-power IoT and other environmental protection projects.
Please read the Product Wiki before using.
1) Solar panel charging input: charged by solar panel, DC-002 jack or screw terminal
2) USB charging input: charged by USB connection, connect a 5V power adapter through the Micro USB port
3) 5V/1A power output: provides regulated 5V/1A output, USB port or 2.54mm pin header
4) Battery interfaces: for connecting 3.7V rechargeable lithium-ion, PH2.0 connector or 14500 battery holder
5) CS8501: USB power management chip, for USB charging and 5V/1A boost output
6) CN3791: solar power management chip, for solar panel charging and buck input
7) Lithium-ion battery protection chip: over charge / over-discharge protection
8) Battery switch
9) MPPTSET switch (bottom side)
- Supported level: 6V/9V/12V/18V/24V
- Select the level closest to the input level to improve charging efficiency
10) BOOT key
11) Battery capacity indicators
12) USB charging indicators:
- USB Charge: on when USB charging
- USB Done: on when the battery is full charged by USB
13) Solar panel charging indicators:
- Solar Charge: on when solar panel charging
- Solar Done: on when the battery is full charged by the solar panel
- Solar Warning: on when solar panel has a reversed connection
14) Battery warning: on when the battery has a reverse connection
15) Power output indicator: 5V/1A output
Batteries/adapters not included