12W solar panel with MPPT and LoRa module, IP67, for Meshtastic network node

12W solar panel with an MPPT charging controller designed for assembling a self-built LoRa network node using Heltec V3, V4, T114, or RAK4630 modules. This solar panel with MPPT technology allows you to set up a self-sufficient, renewable energy-powered Meshtastic network station in outdoor conditions. Suitable for people who need a reliable, long-lasting power source for LoRa devices operating at 868–915MHz.

12W solar panel with MPPT - key features

• High-efficiency charging — monocrystalline silicon panel with a 2A charging current maximizes solar energy utilization and significantly reduces battery charging time.
• MPPT controller — the built-in MPPT charging controller increases charging efficiency by more than 20% compared to standard controllers.
• Low power consumption circuit — the MCU control circuit accurately monitors the battery level, protects against overcharging and deep discharge, and has a sleep mode current of approximately 500μA.
• Status indicators — 6 LED lights indicate the charging status, battery level, and power output status in real time.
• Water resistance IP67 — the housing is designed for outdoor use and is protected from moisture and dust.
• Dual charging method — the battery can be charged either with solar energy or via a 5V/2A DC adapter, depending on the conditions.

Technical specifications

• Power: 12W
• Solar cell type: monocrystalline silicon, conversion efficiency up to 23%
• Output voltage: 3.7–4.2V
• Frequency range for the antenna: 868MHz–923MHz
• Charging current: 2A
• Operating current in sleep mode: approximately 500μA
• Number of LED indicators: 6 (charging, battery level, power output)
• Battery compartments: 6 pieces, for 18650 type batteries
• Supported batteries: 18650, flat and round (button-top) type, unlimited capacity, maximum 4 batteries
• Overcharge protection: 4.25V
• Over-discharge protection: 2.8V
• Water resistance: IP67 (for outdoor use)
• DC charging connector: 5V/2A adapter
• MPPT efficiency increase: over 20%
• Charging time (tested with 4x 2500mAh batteries): from 3.5V to 4.18V — approximately 6-8 hours
• Dimensions of the LoRa module mounting area: 72 mm × 35 mm
• Charging/control cable: 1.25mm 2-pin, provides 3.7–4.2V
• Package contents: 12W solar panel — 1 piece; LoRa antenna — 1 piece; 2.4G antenna — 1 piece; mounting bracket — 1 piece; mounting strap — 1 piece; mounting screws — 1 package
• Note: The LoRa module and batteries are NOT included in the package, and must be purchased separately

Who is it suitable for and how to use it?

This 12W solar panel with MPPT is ideal for Meshtastic enthusiasts who are creating their own LoRa network nodes in outdoor conditions — for tourism, surveillance systems, or remote locations without electricity. Before installation, you need to purchase a LoRa module (Heltec, T114, RAK4630) and 18650 batteries separately. It is recommended to install it in a location where the panel receives as much direct sunlight as possible for efficient charging.

Buyer questions

Question: Does the package include the LoRa module and batteries?
No, the LoRa module and 18650 batteries are not included in the package — they must be purchased separately. The package includes the panel, antennas, mounting bracket, strap, and screws.

Question: What type of batteries can be used with this panel?
Standard 18650 type batteries are suitable, both flat and round (button-top) end. The capacity is unlimited, but a maximum of four batteries can be inserted at a time.

Question: How does the battery protection work?
An embedded low-power MCU controller monitors the battery level and automatically activates the protection: overcharge protection from 4.25V, over-discharge protection from 2.8V.

This 12W solar panel with MPPT technology is a reliable choice for a self-sufficient Meshtastic network node in outdoor conditions. It is suitable for LoRa enthusiasts looking for a renewable energy solution with IP67 protection.

Sources: LoRa technology | TopSmart store