Remote battery switch (function 25)

The remotely operated main battery switch. It reports whether the contactor is closed, whether power is being injected and how much, how many batteries are connected, and the boat power-on and power-off requests. Its command forces the contactor or the injection on or off, or hands either back to automatic control.

Published

device/25/<i>/life

metadata adds counter; expireAfterSec: 30.

Two keys contain literal spaces: "boat power on", "boat power off".

data field	Type	Unit	Description
NbBatt	int	—	Connected batteries
switch_ste	bool	—	Switch/relay state
power_injection_ste	bool	—	Power injection state
power_input_ste	bool	—	Power input state
injected_current	number (1 dec)	A	Injected current
boat power on	bool	—	Boat power-on flag
boat power off	bool	—	Boat power-off flag

{
  "data": {
    "NbBatt": 4,
    "switch_ste": true,
    "power_injection_ste": true,
    "power_input_ste": false,
    "injected_current": 15.5,
    "boat power on": true,
    "boat power off": false
  },
  "metadata": {
    "rxdate": "2026-06-17T14:30:45.123Z",
    "rxTimestamp": 1781793045,
    "expireAfterSec": 30,
    "counter": 1
  }
}

mosquitto_sub -h 127.0.0.1 -t 'device/25/+/life' -v

Command — device/25/<i>/command

Regex ^device/25/([[:digit:]]+)/command$. Each field accepts the string "auto" (auto mode) or a boolean (true = force on, false = force off).

Field	Type	Description
relay	"auto" | bool	Contactor: auto / force on / force off
injection	"auto" | bool	Grid injection: auto / force on / force off

mosquitto_pub -h 127.0.0.1 -t 'device/25/0/command' -m '{"relay":"auto"}'
mosquitto_pub -h 127.0.0.1 -t 'device/25/0/command' -m '{"relay":true}'
mosquitto_pub -h 127.0.0.1 -t 'device/25/0/command' -m '{"injection":false}'