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Victron Lynx Smart BMS 500 Manual

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9. Battery monitor settings
This chapter explains all battery monitor settings. In addition to this we also have a video available explaining these settings and
how the interact with each other to achieve accurate battery monitoring for both lead-acid and lithium batteries.
https://www.youtube.com/embed/mEN15Z_S4kE
9.1. Special note on the Lynx Smart BMS battery monitor settings
Unlike other battery monitors, the Lynx Smart BMS battery monitor settings are mostly fixed settings and are not customizable.
The reason for this is that the Lynx Smart BMS is always used together with Victron Energy Smart Lithium batteries and a lot of
battery monitor parameters are therefore known because they relate to the battery type.
To give an overview of the status of each battery setting:
These battery monitor settings are adjustable:
•Battery capacity: by default set at 200Ah, needs to be set on first install.
•Charged Voltage: by default set at 14.0V (12V system), 28.0V (24V system) and 56.0V (48V system).
•Tail current: by default set at 4% (as a fraction of the battery capacity).
•Charged detection time: by default set at 3 minutes.
These battery monitor settings are automatic settings:
•Zero current calibration: Is done automatically each time at power up.
These battery monitor settings are fixed:
•Peukert exponent: 1.05
•Charge efficiency factor: 99%
•Current threshold: 0.1A
•Discharge floor: 15%
•Delta T: 1
•SOC cycle end: 90%
•SOC Cycle: 65%
•SOC full discharge: 5%
The meaning of each battery monitor parameter is explained in next chapter.
9.2. Battery capacity
This parameter is used to tell the battery monitor how big the battery is. This setting should already have been done during the
initial installation.
The setting is the battery capacity in Amp hours (Ah).
Default setting Range Step size
200 Ah 1 - 9999 Ah 1 Ah
9.3. Charged voltage
The battery voltage must be above this voltage level to consider the battery as fully charged. As soon as the battery monitor
detects that the voltage of the battery has reached the “charged voltage” and the current has dropped below the “tail current” for a
certain amount of time, the battery monitor will set the state of charge to 100%.
Default setting Range Step size
14.0V (12V system)
28.0V (24V system)
56.0V (48V system)
0 - 60V 0.1V
The “charged voltage” parameter should be set to 0.2V or 0.3V below the float voltage of the charger.
Lynx Smart BMS
Page 26 Battery monitor settings
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