Temperature Above 40°C; Pv Connections Burned Or Melted; Communication Issues; Bluetooth - Victron energy SmartSolar MPPT 150/70 Manual

Example of differences in output power at different battery voltages
8.8.3. Temperature above 40°C
The solar charger operates up to 60°C, with full-rated output maintained up to 40°C. Above 40°C, the output will derate, reducing
output power.
For efficient performance, consider the solar charger's mounting arrangement. Mount it vertically with terminals facing downwards
to dissipate heat effectively. In closed enclosures, like cabinets, ensure proper airflow with mounted vents to allow cold air in
and hot air out. In extremely high-temperature environments, mechanical air extraction or air conditioning may be necessary to
maintain optimal performance.

8.8.4. PV connections burned or melted

Burned or melted PV cables or connections are not covered under warranty. This can occur due to the following reasons:
• Loose screw connections.
• Using cables with rigid core wire or rigid strands.
• Soldering the core wire ends of the cables.
• Using thin cables may result in higher currents when the PV voltage is lower. Refer to the
information.
• Inserting cable insulation too deeply into the connector.
• Exceeding 30A per MC4 connector pair.
• Incorrectly crimping MC4 connectors.
• Using low-quality MC4 connectors.

8.9. Communication Issues

In this chapter, we address potential problems that may occur when connecting the solar charger to the VictronConnect app, other
Victron devices, or third-party devices.

8.9.1. Bluetooth

Please note that Bluetooth interface issues are highly unlikely. If you encounter problems, they are probably caused by other
factors. Use this chapter to quickly identify common causes of Bluetooth issues.
For a comprehensive troubleshooting guide, refer to the
Bluetooth check
Check if the solar charger is powered up:
• Observe the LEDs: If any LEDs are on, blinking, or pulsing with a few seconds interval, the unit is powered
up, and Bluetooth should be functional.
Step 1
• f all LEDs are off, the unit is not powered up, and Bluetooth is inactive. Refer to the
unresponsive [46]
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