12W Solar Panel with MPPT Charging and 5–12V DC Output
12W Solar Panel with MPPT Charging and 5–12V DC Output - 5V 2A is backordered and will ship as soon as it is back in stock.
Features
Features
12W Solar Panel with MPPT Charging and 5–12V DC Output
Product Description
The 12W solar panel is a compact off-grid power solution with built-in MPPT charging and multi-voltage DC output. Whether you’re building a DIY solar project, powering small 5–12V electronics away from the grid, or adding backup power to a low-power system, this 12W solar panel gives you output in one tidy package.
With a high-efficiency 12W monocrystalline module, support for up to six 18650 lithium batteries (not included), and clear LED status indicators, it’s designed to make small solar setups simple, reliable, and easy to monitor. The IP66-rated housing, waterproof button switch and included mounting bracket help it handle real outdoor conditions.
Details & Specs
| Item | Specification |
|---|---|
| Solar Cell Type | Monocrystalline silicon |
| Rated Power | 12W |
| MPPT Charging | Yes |
| Conversion Efficiency | Approx. 23% |
| Panel Output Voltage | 6.5V under load; 7.2V open circuit |
| Panel Output Current (max) | Approx. 1.8A |
| System Output Voltages | 5V / 6V / 9V / 12V |
| System Output Currents (rated) | 5V 2A / 6V 1.5A / 9V 1.2A / 12V 1A |
| Input / Output Connectors | Micro USB input; 5.5 × 2.1 mm DC output |
| Battery Type | 18650 lithium batteries |
| Battery Slots | Up to 6 pcs, parallel connection |
| Single-Cell Capacity | Supports common 18650 capacities up to around 3300mAh |
| Total Pack Capacity | Supports up to around 19800mAh (6 × 3300mAh), batteries not included |
| Recommended Cell Capacity | Single-cell capacity should not be less than 2600mAh |
| Full Charge Time | Approx. 8 hours of strong sunlight for a typical battery pack |
| Overcharge Protection | Single cell 4.28V |
| Overdischarge Protection | Output stops at about 3.3V per cell; hardware disconnects at about 3.0V |
| Balanced Charging | Supported |
| Charging Voltage Requirements | 4.5V < charging voltage < 5.5V |
| Indicator Lights | Red LED for solar charging, green LED for external charging, 1 × power display LED, low voltage indicated when red LED turns off |
| Working Humidity | ≤ 90% RH |
| Weight | Approx. 0.85 kg (excluding batteries) |
Note: 18650 batteries are not included. Use cells with similar capacity and condition for best performance.
How to Use
- Install 1–6 18650 batteries in the battery compartment, observing polarity and using cells with similar capacity (ideally 2600mAh or higher).
- Mount the 12W solar panel using the included bracket and tilt it toward the sun to maximize exposure.
- Connect your 5V–12V device to the 5.5 × 2.1 mm DC output, ensuring the required voltage matches one of the available 5V/6V/9V/12V outputs.
- Allow the panel to charge the battery pack in sunlight; a typical pack reaches full charge after about 8 hours of strong sun.
- When sunlight is limited, you can also charge the battery pack via a suitable 5V adapter through the Micro USB input.
Who It’s For
This 12W solar panel is ideal for DIY makers, hobbyists and small off-grid projects that need a reliable 5V–12V power source. It works well for garden sensors, small electronics, experimental IoT devices and other low-power loads where running mains power is inconvenient or impossible.
Care & Maintenance
- Keep the solar surface clean and free from dust or shading to maintain efficiency.
- Use only quality 18650 cells and avoid mixing old and new batteries in the same pack.
- Match cells with similar capacity and internal resistance for best performance.
- Ensure all seals and covers are properly closed to maintain the IP66 protection level outdoors.
- If the panel will not be used for a long time, disconnect loads and store it in a dry place.
