4W Solar Power Module for Meshtastic node 18650 RAK4631/Heltec
Code: LA122094A



Product detailed description
The 4W solar power module is a complete power solution for the outdoor operation of a Meshtastic node without the need for a mains connection. A monocrystalline solar panel with 22.1% efficiency charges four 18650 batteries, which serve as a backup source and ensure the continuous operation of the node at night and under poor light conditions. With a connected device power consumption of up to 0.45 W, the module can power the node continuously 24/7. The robust plastic construction with an integrated space for a development board (RAK4631 or Heltec) and an SMA connector for the antenna creates a ready-made outdoor node – simply add the board and batteries. Using the included swivel bracket, the module can be easily mounted to a wall or mast and the panel angled towards the sun.
Specifications:
- Model: UPS-4W
- Panel type: monocrystalline solar panel, 4 W
- Module efficiency: 22.1%
- Charging voltage: max. 5 V
- Output voltage: 3.7–4.2 V, max. 2400 mA
- Powered device consumption: < 0.45 W for continuous 24/7 operation
- Full charge time: 14–16 hours (depending on solar conditions)
- Batteries: 4× 18650 (NOT included)
- Charging port: USB-C (option to charge from the mains)
- Control: power button
- LED indication: OUTPUT, CHARGE, BATTERY
- Antenna: included, 18 cm length, frequency 863–923 MHz, SMA connector
- Board holder: integrated space for RAK4631 / Heltec
- Mounting: included swivel bracket for wall / mast
- Panel dimensions: 170 × 115 × 30 mm
LED indicator meaning:
- Red LED on – battery is in normal condition
- Green LED flashing – charging in progress
- Green LED on – battery is fully charged
- Yellow LED on – active output voltage

Package contents:
- 1× UPS-4W Solar Power Module (with cover and board holder)
- 1× 863–923 MHz Antenna (SMA)
- 1× Swivel Mounting Bracket
Note:
- Neither the development board (RAK4631 / Heltec) nor the 18650 batteries ARE included in the package.
- This product is not a standalone functional unit and may require professional installation.
- Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic characteristics.
Additional parameters
| Category: | Chargers & Battery Protection |
|---|---|
| Warranty: | 2 years |
| Weight: | 0.46 kg |
| The item has been sold out… | |
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