4.3.3. Set state of charge
In the VictronConnect app, see:
Settings > Battery > Battery start synchronized
.
When set to ON, the battery monitor will consider itself synchronized when powered up, resulting in a state of charge of 100%.
If set to OFF, the battery monitor will consider itself un-synchronized when powered up, resulting in a state of charge that is
unknown until the first actual synchronization.
For VictronConnect only: The initial state of charge value can also be manually set, by default, this is 100%, and can be set to a
different value if so desired. See:
Settings > Battery > State-of-charge
.
4.3.4. Set the auxiliary input function
In the VictronConnect app, see:
Settings > Misc > Aux input
.
This setting sets the function of the auxiliary input, being:
•
Starter battery
- Voltage monitoring of a second battery.
•
Midpoint
- Measuring the midpoint of a battery bank.
•
Temperature
- Measuring battery temperature via an optional temperature sensor.
•
None
- The auxiliary input is not used.
4.4. Make Lithium settings (if needed)
LiFePO4 (Lithium Iron Phosphate or LFP) is the most used Li-ion battery chemistry. The factory defaults are in general also
applicable to LFP batteries with exception of these settings:
• Tail current.
• Peukert exponent.
• Charge efficiency.
• Discharge floor.
Tail current
In VictronConnect see:
Settings > Battery > Tail current
.
Some lithium battery chargers stop charging when the current drops below a set threshold. The tail current must be set higher in
this case.
Peukert exponent
In VictronConnect see:
Settings > Battery > Peukert exponent
.
When subjected to high discharge rates, lithium batteries perform much better than lead-acid batteries. Set the Peukert exponent
at 1.05, unless the battery supplier advises otherwise.
Charge efficiency
In VictronConnect see:
Settings > Battery > Charge efficiency factor
.
The charge efficiency of lithium batteries is much higher than that of lead-acid batteries. We recommend setting the charge
efficiency at 99%.
Discharge floor
In VictronConnect see:
Setting > Battery > Discharge floor
This setting is used in “the time to go” calculation and is set at 50% by default for lead-acid batteries. However, lithium batteries
usually can be discharged significantly deeper than 50%. The discharge floor can be set to a value between 10 and 20%, unless
the battery supplier advises otherwise.
Manual - SmartShunt IP65
Page 10
Configuration
