Compatibility
Which Pylontech batteries are supported?
Any Pylontech battery with a Console (RS-232 RJ45) port that uses the standard low-voltage console protocol. This includes US5000, US3000C, US3000, US2000C, US2000B+, UP2500 and the Force-L1 family. If your battery has a "Console" RJ45 port and you can talk to it over 1200 baud, it works.
Does it work with high-voltage Pylontech (Force-H, H48050)?
The Console protocol is similar but the parameter ranges and frame timings differ. We currently focus on low-voltage 48 V models. HV support is on the roadmap.
Will it work with my BYD / Dyness / Seplos / other brand battery?
No. The Pylon-Monitor speaks the Pylontech console protocol. Other brands use different protocols (often Modbus or CAN) and are not compatible.
Can I monitor multiple stacked batteries?
Yes. Pylontech batteries in a stack share their data over the Link cables. The master battery aggregates everything and exposes it on its Console port. The Pylon-Monitor reads the master and you see the whole stack.
Installation
Which RJ45 port should I use?
The one labeled Console. Not RS485, not CAN, not Link. Look for the small "Console" silkscreen near the port on the top of the battery.
Will it interfere with my inverter?
No. The inverter typically talks to the battery on the CAN or RS485 port. The Console port is a separate, independent interface designed for monitoring and diagnostics.
Does it need a special cable?
No. Any standard straight-through Ethernet RJ45 cable works. One is included in the box.
How do I power it?
Any 5V USB source. A phone charger, a USB port on your inverter, a power bank, a Raspberry Pi… The device draws under 0.5 W.
Warranty & safety
Will it void my Pylontech warranty?
No. The Console port is read-only in the way the Pylon-Monitor uses it. We send only standard diagnostic commands (pwr, info, bat, stat) — the same ones Pylontech's own console tool sends. We never change settings, never trigger calibration, never write configuration.
Is it electrically safe?
Yes. The Console port operates at standard RS-232 voltages (±12 V) and the Pylon-Monitor uses a galvanically rated MAX3232 transceiver. The USB power supply is fully separated from the battery's high-voltage side.
Network & security
Does it need an internet connection?
No. The device is 100% local. It only needs your WiFi so that you (or Home Assistant) can reach it.
Does it phone home?
No. No telemetry, no analytics, no cloud. The only outbound connection the device ever makes is when you trigger an OTA firmware check.
Is the dashboard password-protected?
Yes. The dashboard requires a username and password — both default to admin and can be changed from Settings → Web Interface Security.
Integration
Home Assistant?
Yes, in 10 lines of YAML using the built-in rest platform. See the integration guide.
Node-RED / Jeedom / Domoticz / openHAB?
Any tool that can poll an HTTP endpoint and parse JSON works. The endpoint is http://<device-ip>/api.json.
Can I push data to InfluxDB / Prometheus?
Indirectly, yes — use any tool that can scrape an HTTP/JSON endpoint (Telegraf inputs.http, a small Python exporter, a Node-RED flow…) to forward /api.json to your time-series database.
Updates & support
How do I update the firmware?
Open the dashboard → System → Firmware Update. Select the .bin downloaded from our firmware page. The device reboots into the new version in about 20 seconds.
Are firmware updates really free for life?
Yes. We make money selling devices, not subscriptions.
I have a question that isn't here.
Email us at contact@pylon-monitor.com. We answer.