Settings can only be changed if the battery monitor runs on the most recent firmware.įor more information on firmware updates also see the VictronConnect app manual Firmware update chapter.The choice is largely your choice or dictated by system needs. If you choose not to update the firmware, you can only read out the battery monitor, but you cannot change settings. The VictronConnect app contains the actual firmware files, so an internet connection is not needed to update to the most recent firmware as long as you are using the most up-to-date version of the VictronConnect app.Ī firmware update is not mandatory. Whenever you connect to the battery monitor with an up-to-date version of the VictronConnect app, it will check the firmware, and if there is a newer version available, it will ask you to update the firmware. On the first installation, it is always recommended to update to the most recent firmware (if available). It also indicates whether the firmware is the latest version, and there is a button you can press to update the firmware. The product overview in the VictronConnect app displays the battery monitor and the Bluetooth interface firmware version. New firmware is released to either add features or to fix a bug. Occasionally a newer firmware version is available. Please note that leaving a lead acid battery in a partially discharged state for a length of time will cause battery damage.īoth the battery monitor and its Bluetooth interface run on firmware. Now when the battery monitor is reconnected the state of charge will display “-” and will not show 100% until the batteries have been fully charged. There are two ways of solving this, one is to not disconnect the battery monitor when the batteries are partially discharged or alternatively turn the “Battery starts synchronised” feature off. This will give a false impression that the batteries are full, while in reality they are partially discharged. On return to the boat, the DC system is reconnected and the battery monitor will now indicate 100%. If you leave the boat and disconnect the DC system via the main DC breaker and at that moment the batteries were, for example, 75% charged. One of these situations occurs in systems where the battery is often disconnected from the battery monitor, for example on a boat. Please be aware that situations can occur where special consideration is needed when setting this feature to ON. If set to OFF, the battery monitor will consider it unsynchronised when powered up, resulting in a state of charge that is unknown until the first actual synchronisation. When set to ON, the battery monitor will consider itself synchronised when powered up, resulting in a state of charge of 100%. The battery state of charge will become 100% after the battery monitor is powered up. Please note that the ‘oxygen only’ end of the charge phase of sealed (VRLA) gel and AGM batteries also results in a reduced charge efficiency. Gassing can easily be observed in flooded batteries. The energy stored in the plates can be retrieved during the next discharge, whereas the energy used to decompose water is lost. Gassing means that part of the charge current is not transformed into chemical energy, which is stored in the plates of the battery, but is used to decompose water into oxygen and hydrogen gas (highly explosive!). The charge efficiency of a lead acid battery is almost 100% as long as no gas generation takes place. The battery monitor takes this phenomenon into account with the charge efficiency factor. The charge efficiency of a battery depends on battery type, age and usage. A setting of 100% means that there are no losses.Ī charge efficiency of 95% means that 10Ah must be transferred to the battery to get 9.5Ah actually stored in the battery. The “Charge Efficiency Factor” compensates for the capacity (Ah) losses during charging. Incorrect auxillary battery voltage reading State of charge does not increase fast enough or too fast when charging There is a current reading while no current flows Charge and discharge current are inverted What to do in case of an alarm during discharging What to do in case of an alarm during charging Connecting and monitoring midpoint in a 48V battery bank Connecting and monitoring midpoint in a 24V battery bank Battery bank and midpoint wiring diagrams Saving, loading and sharing settings in VictronConnect Accessing settings via the VictronConnect app Connecting to a GX device and the VRM portal Accessing historical data via the VictronConnect app Auxiliary connection for temperature monitoring Auxiliary connection midpoint battery bank monitoring Auxiliary connection for monitoring the voltage of a second battery
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