Home → Devices → Autonomous Power Supply Kit
¶ Autonomous Power Supply Kit for LoRaWAN Base Station
A complete solution from ROSSMA: RAK base station, Battery Plus, and solar panel. Stable LoRaWAN network coverage with full energy autonomy.
¶ Purpose
The equipment kit is designed to provide autonomous power for LoRaWAN base stations in locations where grid power is unavailable.
Applications:
- Remote industrial facilities
- Agricultural areas
- Oil and gas fields
- Mining operations
- Transportation infrastructure
¶ Kit Contents
| Component | Description |
|---|---|
| RAK Base Station | LoRaWAN Gateway with antennas |
| Battery Plus (RAK9155) | Battery system with charge controller |
| 80 W Solar Panel | Monocrystalline panel |
| Mounting Hardware | For pole mounting |
Fig. Autonomous power supply kit component diagram
¶ Solar Panel
The solar panel uses monocrystalline solar cells with an expected lifespan of over 25 years.
Important: The solar panel generates maximum power when sunlight falls perpendicular to its surface. Proper orientation and tilt angle are essential for achieving peak power output.
¶ Solar Panel Specifications
| Parameter | Value |
|---|---|
| Peak power | 80 W |
| Open circuit voltage | 21.8 V |
| Maximum power voltage | 18.24 V |
| Maximum power current | 4.39 A |
| Short circuit current | 4.65 A |
| Cell type | Monocrystalline silicon |
| Number of cells | 36 |
| Front cover | Low-iron tempered glass, 3.2 mm |
| Frame | Anodized aluminum alloy, silver |
| Ingress protection | IP67 |
| Mounting pole diameter | 76–140 mm |
| Dimensions | 730 × 670 × 30 mm |
| Operating temperature | -40°C to +85°C |
¶ Battery Plus (RAK9155)
Battery Plus is a next-generation battery system that includes a solar charge controller and condition monitoring. Specifically designed for RAK base stations.
It enables reliable outdoor gateway deployment in remote autonomous conditions where grid power is unstable or unavailable.
¶ Key Advantages
| Advantage | Description |
|---|---|
| Long lifespan | Lithium iron phosphate (LiFePO4) battery can last over 10 years with daily charge/discharge cycles at 25°C |
| Integrated heater | Built-in solar charger and heater, capable of charging at sub-zero temperatures |
| Lightweight design | Weighs under 8 kg — single-person installation |
| High water resistance | IP65 protection rating — suitable for indoor and outdoor use |
| Dual panel inputs | Primary + auxiliary input for a second solar panel (for areas with insufficient sunlight) |
¶ Battery Plus Specifications
| Parameter | Value |
|---|---|
| Model | RAK9155 |
| Battery type | LiFePO4 (lithium iron phosphate) |
| Nominal voltage | 12.8 V |
| Operating voltage | 10.0–14.6 V |
| Nominal capacity | 50 Ah |
| Energy capacity | 600 Wh |
| Depth of discharge | 100% |
| Standard charge/discharge current | 0.16C (8 A) |
| Max continuous current | 0.2C (10 A) |
| Max charge/discharge power | 128 W |
| Nominal load power | 102.4 W |
| Short circuit current | 40 A |
| Charge method | 0.2C constant current (CC) to 14.6 V |
| Self-discharge | ≤5% |
| Battery construction | 1P4S (4 cells × 3.2 V) |
| Heater power | 60 W |
| Dimensions | 499 × 280 × 75 (±3) mm |
| Protection rating | IP65 |
¶ Installation
¶ Requirements
-
Site selection:
- Open area with maximum sun exposure
- No shading from trees, buildings, or structures
- Stable base for the pole
-
Solar panel orientation:
- Facing south (in the Northern Hemisphere)
- Tilt angle equal to local latitude ±15°
- For winter operation: angle = latitude + 15°
-
Installation height:
- Recommended antenna height: 6–10 m
- Panel above snow cover level
¶ Installation Procedure
- Install and secure the pole
- Mount the solar panel on the bracket
- Install Battery Plus on the pole below the panel
- Install the RAK base station
- Connect the solar panel to Battery Plus
- Connect the base station to Battery Plus
- Verify indication and functionality
Caution: Observe correct polarity during installation. Incorrect connection may damage the equipment.
¶ Autonomy Calculation
¶ RAK Base Station Power Consumption
| Operating Mode | Consumption |
|---|---|
| Average power | 5–8 W |
| Peak power | up to 15 W |
¶ Autonomous Operating Time
With a 600 Wh battery capacity and 6 W average consumption:
Without recharging: 600 Wh ÷ 6 W = 100 hours (~4 days)
With 80 W solar panel:
- Summer (6–8 hours of sunlight): full autonomy plus reserve
- Winter (2–4 hours of sunlight): consumption and generation balance
Recommendation: For areas with insufficient sunlight, connect a second solar panel to the auxiliary Battery Plus input.
¶ Indication and Monitoring
Battery Plus is equipped with a condition monitoring system:
- Battery charge level — LED indication
- Charging status — solar panel charge indication
- Temperature — battery temperature monitoring
- Errors — fault diagnostics
¶ Additional Information
- LoRaWAN Technology — protocol description
- LoRaWAN Mesh — mesh networks for coverage extension
- ROSSMA NETS Server — base station management
- Troubleshooting — diagnostics and problem solving
¶ Related Pages
- Device Catalog — all ROSSMA IIoT-AMS devices
- System Architecture — ROSSMA network components