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12W Mini Solar Panel with Multi-Voltage DC Output

LinkSolar  |  SKU: LS-SP12W-MV5
$6250 USD
Free shipping on orders up to 2 kg to our delivery countries; rates for orders over 2 kg and up to 25 kg are calculated at checkout. For orders over 25 kg or destinations unavailable at checkout, contact us for a shipping quote before checkout.

Features
  • 12W monocrystalline solar panel.
  • Select a 5V, 6V, 9V or 12V regulated DC output version.
  • Supports up to six 18650 cells in parallel; batteries are not included.
  • Micro-USB input provides an additional charging option.

Product Description

The 12W mini solar panel is a compact off-grid power solution with selectable 5V/6V/9V/12V DC output and support for up to 6×18650 batteries (not included). It is suitable for DIY electronics, garden projects, low-power equipment, and other small 5–12V applications that need a simple solar charging setup.

With a high-efficiency 12W monocrystalline module, support for up to six 18650 lithium batteries (not included), and clear LED status indicators, it is 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
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.

Related guides: Mini Solar Cell: How to Specify a Small Panel for IoT

Buyer questions

Is a battery required, and which cells should I use?

The bay takes one to six 18650 lithium cells in parallel (batteries not included). Single-cell capacity is supported up to about 3300 mAh, and the recommended minimum is 2600 mAh; use cells with similar capacity and condition for best performance.

What can the 12W module keep running?

It is positioned for DIY electronics, garden projects, small sensors and other low-power 5–12V applications that need a simple solar charging setup. It is not a substitute for mains power on larger loads — size against your device's average consumption.

How long does charging take?

About 8 hours of strong sunlight for a typical battery pack. When sunlight is limited, the pack can also be charged through the Micro USB input from a suitable 5V adapter.

What output voltages and connector does it have?

Selectable 5V / 6V / 9V / 12V system outputs rated 5V 2A, 6V 1.5A, 9V 1.2A and 12V 1A, on a 5.5 × 2.1 mm DC output; the input side is Micro USB.

LinkSolar supplies mini solar panels to B2B buyers; ships from China.

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