Pre-order €49 until 9 Nov, then €59 · ships on 10 November 2026

Home / Installing MoniWatt for Pytes

Installing MoniWatt for Pytes

Ten minutes, no tools, and nothing to change in your existing battery wiring.

Before you start

1. Find the console port

On the front panel of the Pytes battery you will find several RJ45 sockets. The one we need is the console port, labelled Console or RS232 depending on the series. Leave the CAN and RS485 sockets alone: they carry the conversation between your battery and your inverter and must stay connected as they are.

With several batteries in parallel, connect the box to the battery that holds the master position (usually the one linked to the inverter). Tell us your layout when you order and we will confirm.

2. Plug in the cable and power

Connect the supplied cable (marked BAT) between the console port and the RJ45 socket of the box, then plug the USB-C cable into the box and the charger. The screen lights up within a few seconds.

The cable carries only low-voltage data. Never connect the box to anything else on the battery, and never open the battery.

3. Join your Wi-Fi

On the first start the box creates its own Wi-Fi network. Join it from your phone, and a setup page opens by itself. Pick your home network, type its password, then choose the password that will protect your dashboard. The box restarts and connects.

4. Open the dashboard

Type http://moniwatt.local in your browser, or the IP address shown at the bottom of the screen. Log in with the password you just set. After a few seconds the first readings from the Pytes BMS appear.

If the screen shows no battery data

Next step: bring the data into Home Assistant.

Put your Pytes battery on your phone

Order today. We test the box on Pytes hardware before it leaves the workshop.

Pre-order for €49Pre-order price · €59 from 10 Nov · ships on 10 November 2026 · free cancellation until dispatch