Unable To Select 36V Or 48V Battery Voltage; Unable To Operate As A Dc-Dc Charger Or Power Supply; Interrupted Firmware Update; Ground Current - Victron energy BlueSolar MPPT 75/10 Manual

MPPT solar charger manual

8.11.2. Unable to select 36V or 48V battery voltage

Not all solar chargers support 36V or 48V battery system voltages.
To confirm the supported battery voltages, refer to the Technical specifications [61] chapter or check the "battery voltage"
parameter drop-down menu in the VictronConnect app.

8.11.3. Unable to operate as a DC-DC charger or power supply

Avoid using the solar charger as a DC-DC charger (e.g., to charge a 12V battery from a 24V battery bank). Connecting a battery
to the PV terminals under certain operational conditions can damage the solar charger, which is not covered by the warranty.
Instead, use a dedicated DC-DC charger or converter. Check our DC-DC converter product page for a complete product range.
Also, refrain from using the solar charger as a power supply without batteries connected. Although this operation won't harm the
solar charger, it might not support all types of loads. Some loads may function, while others may not, particularly at low load
power, where the solar charger's response might be too slow to maintain a constant voltage. Please note that support is not
provided for such situations.

8.11.4. Interrupted firmware update

An interrupted firmware update is recoverable and there is no need to worry. Simply attempt to update the firmware once more.

8.11.5. Ground current

If a ground current is detected in the system during normal operation, take the following steps:
• First, thoroughly inspect all the equipment connected to the system and check for any ground faults.
• Next, verify the number of connections to ground in the system. Ideally, there should be only one point in the system connected
to the ground, which should be at the battery.
• For more information on system grounding, see the "System grounding" chapter in the Wiring Unlimited book.
Note that the solar charger is non-isolated and the minus of the PV input is at the same potential as the minus of the battery
output.
Page 57 Troubleshooting