These are not common and if this occurs it is probably due to one of these issues listed in this paragraph. If the system also contains a battery monitor, or if the system is connected to VRM, the battery voltages and the cycle history of the battery can be accessed This will give a complete picture of the battery history and it can be determined if the battery is near the end of its service life or has been abused.ĩ.6.2. The solar charger will keep 30 day of battery voltage history. It is hard to tell what has exactly happened to a battery during its lifetime. It is not recommended to mix batteries of different ages in one battery bank. In case of multiple battery system replace the whole battery bank. When the faulty battery is charged, the damaged cell will not accept charge and the remaining cells will receive the broken cell’s charge voltage and thus will be overcharged. When a battery is old or has been damaged, a likely scenario is that one of these cells is not operational anymore. If set incorrectly, set it to the correct battery voltage.Ī battery that is at the end of its service life or has been damaged by incorrect use, can be prone to being overcharged.Ī battery contains a number of cells that are connected in series. To check the “battery voltage” setting use the VictronConnect App or a connected display. This feature has since been changed to detect the voltage only once on first install. Some background on why this is: In the very early days, the solar charger would always automatically detect the battery voltage, but this was problematic in case the battery was disconnected often, for example by a BMS. In that scenario it will not detect that the system has changed and will keep charging with 24V battery charge voltages, while the connected battery is a 12V battery and the 12V battery will be overcharged. This can become a problem if a solar charger that came out of a 24V system is now used in an 12V system.
Reason 9.5 vs 10 install#
The solar charger automatically detects the battery voltage on first install and after the self-detection is disabled. If the “battery voltage” setting in the VictronConnect App has been set to a voltage higher than the actual system voltage, the battery will be overcharged. The voltage drop is caused by the following: The lost power is caused by heat dissipated over the battery cables. It will take longer to charge the batteries because the charge voltage is too low and there is a loss of charge power. But be aware that in case there is a large voltage drop, the battery cables and cable connection will need to be checked and if there are issue they will needs to be rectified first.Ī voltage difference has the effect that the battery will be charged with voltages that are too low to. If the battery voltage is less than the solar charge voltage, the solar charger will increase its charge voltage to compensate for the voltage losses. A Smart Battery Sense or battery monitor measures the battery terminal voltage and sends this via the VE.Smart network to the solar charger. Battery charging will take longer, and this can potentially lead to undercharged batteries.Ī VE.Smart network can help in case of a cable voltage drop. If there is a voltage drop over the battery cables, the solar charger will output the correct voltage, but the batteries will receive a lower voltage.
In both above cases, a positive sign alongside the current reading means that current is flowing in to the battery, while a negative sign means that current is being drawn from the battery. If the solar does not have a load output, it might have a battery monitor installed.Then you can see how much current is going in (or out) of the battery and the solar charger will tell you how much current the solar array is generating.
This is providing that all loads are connected to the load output and are not connected directly to the battery. If the solar charger has a dedicated load output (10, 15 or 20A model), then it can easily be checked how much power the PV array has generated and how much power is used by the loads. The battery will only be charged when the power available from the PV panels exceeds the power being drawn by the loads in the system, like lights, fridge, inverter, and so on. The solar charger does not only charge the batteries, it also provides power for the system’s loads. Only voltage readings, no current or power Unable to select 36V or 48V battery voltage
Max PV output power relates to battery voltage Temperature difference between solar charger and battery Battery voltage, PV voltage and current rating
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