Pre-order €49 until 9 Nov, then €5911 days left at this priceships on 10 November 2026Pre-order →
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Dashboard Pre-order€49

Home / Your WeCo battery, from anywhere

Cloud Access · 100% Free

Your WeCo battery, from anywhere

WeCo Monitor shows your cluster at home. The free Cloud adds your phone, wherever you are, and a three-year memory.

  • €0for the Cloud, forever
  • 3 yearsof history, CSV export
  • ≈ 2 minbetween two readings

Open the live demo Sign in →

How it works

From your box to your phone, wherever you are

The box sends its readings out, encrypted. Nothing comes in: no port to open on your router, no VPN, no dynamic DNS.

Your WeCo batteryread every few seconds
RS485 / CAN
WeCo Monitorat home, on your Wi-Fi
HTTPS · ≈ 2 min
The free Cloudhistory, alerts, sharing
anywhere
Your phone or PCany browser, no app
Switch it on

Three steps, two minutes

Off by default. Here is all it takes, with the real screens.

  1. 1Tick one box

    On the box’s page, Settings › Access key & Cloud: tick “Send readings to the free Cloud” and save. Copy the access key shown above it.

    Access key & Cloud

    Access key

    K7Q2M9XA41

    ✓Send readings to the free Cloud (weco-monitor.com)

    Save
  2. 2Sign in with your e-mail

    On weco-monitor.com/dashboard, type your e-mail: you get a one-time sign-in link. No password to remember.

    Sign in

    [email protected]Send me a sign-in link
  3. 3Link your box

    Paste the access key, give the box a name, done. The first readings appear within two minutes.

    Link your first box

    Access key

    K7Q2M9XA41

    Name

    GarageLink this box
Included

Everything, for free

Live dashboard from anywhereCharge, power, every cell and temperature, with the day so far.
Up to 3 years of historyZoom on any day, compare seasons, read the trend.
CSV exportEverything stored, ready for your spreadsheet.
E-mail alertsCharge, temperature, alarms, a box that goes silent: one e-mail per event.
Installer accessYour installer follows the system with their own access; you keep yours.
Private JSON linkFor a widget, IFTTT or Make: your live values, without opening anything at home.
Alerts

You choose what deserves an e-mail

Set per box in your account. One e-mail per event, then nothing until the value is back to normal. In your profile, one more: an e-mail if a box stays silent for 6 hours.

Examples of alerts →

Home Assistant automations

Your appliances run on the sun, by themselves

WeCo Monitor tells Home Assistant when the battery fills up and when it runs low. Four simple rules, and the washing machine, the water heater and the car use your sun instead of the grid. Watch a day:

10:00

Your solar production

Your consumption

OverviewLive

Automations

  • Washing machine on the sun
  • The car follows the sun
  • Hot water for free
  • Gentle evening heating

Logbook

    • Solar production
    • House and heating
    • Washing machine
    • Water heater
    • Electric car
    • Battery level
    • From the grid
    • Sold to the grid for little
    Solar used at home0 %
    Bought from the grid0
    Self-sufficiency0 %
    Saved on this day0vs. the same day without automation
    Over a year0if 150 days look like this one
    Try the four rules yourself →

    Simulation of a sunny day for a house with 5 kWp of panels, a 10 kWh battery, a car that needs 10 kWh and a water heater. The energy delivered to each appliance is the same in both scenarios; only the timing changes. Your figures depend on your system, your tariff and the weather.

    Your data stays yours

    In detail

    The Cloud for WeCo owners

    What you see online

    The online dashboard shows the readings of WeCo Monitor: state of charge, power, voltage and current of the cluster, then each module on its own line with its charge, its lowest and highest cell, its temperature and its state of health. Alarms appear with their time. It refreshes about every two minutes, without port forwarding or VPN.

    Switching it on

    1. On the local dashboard at http://moniwatt.local, open Settings > Access key & Cloud.
    2. Tick the option, save, and copy the access key.
    3. Sign in to the Cloud dashboard of this site with your e-mail and paste the key.

    Within two minutes your battery is online. The box keeps its screen and its local dashboard as before.

    Health over the years

    A battery with a long warranty deserves a long record. Up to three years of history show how each module and its cells evolve, how many kWh the cluster moves every day and how the temperature follows the seasons. Export any period as CSV, for yourself or for a warranty question.

    One e-mail if it stops

    Six hours without readings and you receive one e-mail. A router, a socket or a breaker is usually the cause. Nothing more until the box is back.

    Installer access

    Your installer can sign in with their own e-mail and add the battery with the access key you share. You keep your own access and can change the key at any time.

    Off by default, free when on

    No subscription, and nothing is sent until you tick the option. Readings travel encrypted to a private link opened only by your key. Untick it and sending stops at once; stored readings are deleted on request.

    Questions about the Cloud

    Is the Cloud really free?

    Yes, with no subscription and no paid tier: live dashboard, 3 years of history, CSV export and e-mail alerts are included with the box.

    Do I need a password?

    No. You sign in with your e-mail: we send you a one-time link. Your box is linked to your account with its access key.

    What happens if the internet goes down?

    The screen, the local dashboard and Home Assistant keep working at home. The Cloud picks up again as soon as the connection is back, and can e-mail you if the box stays silent for 6 hours.

    Can someone else follow my system?

    Yes. Your installer, or anyone you give the access key to, can link the box to their own account. You can change the key whenever you like.

    Can I switch it off and delete my data?

    Untick the option in the box settings and it stops sending at once. Stored readings are deleted on request, with one e-mail.

    All questions →

    Keep reading

    ◎Features→▤Specifications→⚙Installation→⌂Home Assistant→⏱Runtime calculator→✎Guides→

    Every WeCo module, in one view

    Pre-order now. The box is tested on WeCo modules before it ships on 10 November 2026.

    Plug & play: working in about a minute

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