iotgod/batteryaggregator

About

A battery monitor DBus service that aggregates the data for multiple batteries (currently, only parallel supported).

Install

Install SetupHelper, use this version if you want this package to be available by default, else manually add it.

Select the Battery Aggregator as the Battery monitor under System setup.

Configuration

Optionally create the file /data/setupOptions/BatteryAggregator/config.json.

To exclude the battery service com.victronenergy.battery.shunt1, add:

	"excludedServices": ["com.victronenergy.battery.shunt1"]

To post-merge information from other services (e.g. a shunt), add:

	"primaryServices": {"com.victronenergy.battery.shunt1": ["/Soc"], "com.victronenergy.battery.leastPrecedence": ["/Dc/0/Current"]}

To pre-merge information from other services, add:

	"auxiliaryServices": ["com.victronenergy.battery.defaultMetadata", "com.victronenergy.battery.leastPrecedence"]

(or use the more advanced syntax if interested in specific DBus paths:

	"auxiliaryServices": {"com.victronenergy.battery.dev1": ["/Info/Location"]}

)

To set the installed capacity (if it is not available via aggregation), add:

	"capacity": 200

To create a virtual battery by merging two (or more) other batteries, add:

	"virtualBatteries": {
		"com.victronenergy.battery.virtual1": ["com.victronenergy.battery.shunt1", "com.victronenergy.battery.leastPrecedence"]
	}
{

(or use the more advanced syntax if interested in specific DBus paths:

	"virtualBatteries": {
		"com.victronenergy.battery.virtual1": {"com.victronenergy.battery.ttyS6": ["/Soc"], "com.victronenergy.battery.ttyUSB0": []},
		"com.victronenergy.battery.virtual2": {"com.victronenergy.battery.ttyS7": ["/Soc"], "com.victronenergy.battery.ttyUSB1": []]
	}
}

)

Examples

Exclude a shunt from aggregation

{
	"excludedServices": ["com.victronenergy.battery.shunt1"]
}

Aggregate all available batteries with SoC info provided by a shunt taking precedence

{
	"primaryServices": {"com.victronenergy.battery.shunt1": ["/SoC"]}
}

Create two virtual batteries from two BMSes, each in series with a shunt, and aggregate them

{
	"virtualBatteries": {
		"com.victronenergy.battery.virtual1": ["com.victronenergy.battery.ttyS6", "com.victronenergy.battery.ttyUSB0"],
		"com.victronenergy.battery.virtual2": ["com.victronenergy.battery.ttyS7", "com.victronenergy.battery.ttyUSB1"]
	}
}