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To determine the battery's state of charge (SoC), check the battery monitor (if available) or inspect the charge stage indicated by
the solar charger. During the daily charge cycle, the solar cycle progresses through the following stages:
1. Bulk stage: 0-80% SoC.
2. Absorption stage 80-100% SoC.
3. Float stage: 100% SoC.
Be aware that the solar charger may detect the battery as fully charged when it's not. This happens if the charge voltages are set
too low, causing the charger to switch from absorption to float stage prematurely. Refer to the
8.5.2. Battery not connected
To ensure proper battery charging, a correct connection to the battery is crucial.
Be aware that that if the solar charger operates without a battery, it may seem connected, showing battery voltage and charge
stage in the VictronConnect app, but the charge current will be negligible or zero.
Potential reasons for a disconnected battery:
• Loose or missing battery cables.
• Loose cable connections.
• Poorly crimped cable terminals.
• A blown (or missing) fuse in the battery supply cable.
• Open (or faulty) circuit breaker in the battery supply cable.
• Incorrectly wired battery cables.
Battery voltage check
Use the VictronConnect app, a connected display or a GX device to read the solar charger battery voltage.
Alternatively, use a multimeter to measure the battery voltage at the terminals of the solar charger.
Step 1
Use a multimeter to measure the voltage at the battery terminals.
Step 2
Step 3
Compare the two voltages.
Page 50
MPPT solar charger manual
Battery settings too low
chapter.
Troubleshooting
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