Temperature Compensation Setting Incorrect; Temperature Difference Between Solar Charger And Battery - Victron energy SmartSolar MPPT 100/30 Manual

• Loss of charge power.
• Increased heat in the battery cables.
The voltage drop can be caused by:
• Battery cables with insufficient cross-sectional area.
• Poorly crimped cable lugs or terminals.
• Loose terminal connections.
• Faulty or loose fuse(s).
For more information on cabling issues and voltage drop, refer to the
Battery cable voltage drop check
Make sure that the charger is charging with the full current, preferably in the morning. Use the VictronConnect
Step 1
app to confirm the output current.
Using the VictronConnect app or a multimeter, measure the voltage on the battery terminals of the solar
charger.
Step 2
Measure the battery voltage on the terminals of the battery using a multimeter.
Step 3
Step 4 Compare the two voltages to identify any voltage difference.
VE.Smart Networking can assist in mitigating a small cable voltage drop. However, for a substantial voltage drop, there may be
an issue with the wiring between the solar charger and the battery, which requires rectification before proceeding.
In a VE.Smart Network a Smart Battery Sense
VE.Smart Networking to the solar charger. If the battery voltage is less than the solar charge voltage, the solar charger will
increase its charge voltage to compensate for (small) voltage losses.

8.6.4. Temperature compensation setting incorrect

Improperly configuring the temperature compensation coefficient can lead to either undercharged or overcharged batteries.
Note that temperature compensation is typically applicable only to lead-acid batteries.
To determine the correct temperature compensation coefficient for your battery, consult the battery documentation. If uncertain,
use the default value of -64.80mV/°C for lead-acid batteries, and for lithium batteries, disable the temperature compensation
setting.

8.6.5. Temperature difference between solar charger and battery

For proper operation, it is crucial that the ambient temperatures of both the battery and the solar charger are equal, especially if
the solar charger is not receiving battery temperature data.
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MPPT solar charger manual
Wiring Unlimited
or battery monitor measures the battery terminal voltage and transmits this via
Book.
Troubleshooting