The Victron Energy VE.Net Battery Controller (VBC) is a device that monitors your battery status. It constantly measures the battery voltage, battery current, and battery temperature, and uses this information to calculate the state of charge of your battery.
This information can then be viewed on a VE.Net Panel (VPN), or VE.Net Blue Power Panel (BPP). When used with a Blue Power Panel, the VBC can be used to provide a graphical overview of your battery system.
Why should you monitor your batteries?
The lifetime of your batteries depends on many factors. If the batteries and the load process are monitored you can prevent your batteries from being under or over charged, or from being discharged too deeply. A battery controller warns you if there is something wrong with the charge current or with the general condition of the batteries.