Every cell
- Each cell voltage
- Lowest, highest and average
- Cell gap (delta)
The cell that drifts is the one that will limit your whole pack: you see it first.
Home / What Pace Monitor reads from the board
What Pace Monitor reads from the board
What PbmsTools shows on a laptop, available all the time without one.
- Every few secondson the screen and at home
- 3 yearsof history in the free Cloud
- 0settings written to your battery
Plug & playConnect the cable, pick your Wi-Fi, and that is it, in roughly a minute. The box comes set up for your Pace, with no app and no tools.See the 3 steps →
PACE MONITOR
78%
V52.94
A+27.4
Δ CELL9 mV
TEMP24 °C
192.168.1.57 · moniwatt.local
Live values
Everything your Pace board measures, without Bluetooth
Read from the RS485 port, refreshed every few seconds, explained in plain words.
Balancing
- Balancer on or off
- Balancing current, where the board reports it
- Cells being balanced
Know whether the balancer actually works, and when.
Pack
- Voltage
- Current
- Power
- State of charge
What the pack is doing right now, charging or discharging, and how fast.
Temperatures
- Cell probes
- Power MOSFET or board
A garage in winter or a hot loft in summer: you see it before the BMS limits the current.
Switches and protections
- Charge and discharge switches
- Protections raised by the BMS
- Alarms, explained in plain words
Understand why the battery stopped charging, without opening the app next to it.
Capacity and ageing
- Remaining and full capacity
- Cycle count
- State of health, where the BMS reports it
Follow how the pack ages, month after month.
Model and firmware decide the final list. Give us yours with the order: the box leaves prepared and checked for that exact model.
Try it
Your cells, as the box shows them
Pick a situation: this is what Pace Monitor shows you about each cell of your Pace pack. Values simulated.
Lowest
Highest
Gap
Temperature
Worked out for you
Not just numbers: answers
Instead of raw registers, the dashboard answers the questions you really ask.
Why the balancer runs, or not
In one sentence: balancing from one cell to another, waiting for the start voltage, or resting under the trigger.
The cell that drifts
The one that runs ahead at full charge and falls behind when the pack is low: usually the weakest cell.
The gap, day after day
The cell gap at the top of each charge, with its trend: stable, shrinking or growing.
Time to full or empty
At the current pace, when the pack will be full, or reach its cut-off.
Alerts
An e-mail when something needs you
A one-off setup per box in the free Cloud, then e-mails arrive on their own, without any app running.
- The box goes quietSilence for 6 hours usually means a power cut, lost Wi-Fi or a cable pulled out.
- Charge below your thresholdBefore the reserve is gone, not after.
- Temperature too highA hot loft or a blocked fan, caught early.
- Alarm raisedA protection or alarm from the BMS, with its meaning.
- Cell gap too wideSet your own limit in millivolts.
Pace Monitor · just now
Battery at 18 %, below your 20 % alert
Your battery dropped below the threshold you set. It is discharging at 1.2 kW: about 1 h 40 min left at this pace.
Open the dashboard
History
Three years of curves, free
The screen shows the present. The free Cloud keeps everything else.
- Day by day, hour by hour14 days of energy at a glance, then any day in detail.
- Up to 3 yearsCompare winter and summer, this year and last.
- CSV exportEverything stored, ready for your spreadsheet.
Where to see it
Six ways to look at the same data
The screen on the boxReadable at a glance when you walk past.
The local dashboardhttp://moniwatt.local on any phone or computer at home, without internet.
The free CloudFrom anywhere in the world, with history and alerts.
Home AssistantEvery sensor created automatically, no YAML
JSON API and MQTTFor your own scripts, Grafana or anything that reads JSON.
Jeedom · Node-RED · DomoticzStep-by-step guides for each one.
What Pace Monitor will never do
- Change a setting, a limit or a switch of your battery
- Send your data anywhere unless you switch the Cloud on
- Get in the way: unplug it and everything is as before
- Ask for a subscription
Pace BMS app, Wi-Fi dongle or Pace Monitor?
What each option really gives you, in short.
| Bluetooth app | Wi-Fi dongle and maker’s cloud | Pace Monitor | |
|---|---|---|---|
| Readable from anywhere in the world | — | ✓ | ✓ |
| Keeps working without internet | ✓ | — | ✓ |
| Home Assistant sensors without ESP32 or YAML | — | — | ✓ |
| A screen next to the equipment | — | — | ✓ |
| Never changes a setting | — | — | ✓ |
In detail
Pace Monitor, value by value
Pack
- State of charge and state of health
- Remaining, full and design capacity, where the board reports them
- Voltage, current and power, charging or discharging
- Cycle count
Cells
- Up to 16 cell voltages, with min, max, average and spread
- Which cells are being balanced, on firmware that reports it
Temperatures
Cell probes, MOSFET and ambient: up to six values depending on the board.
Warnings and protections
Warnings, protections and faults, decoded into readable text, and the current state of the pack: charging, discharging, standby.
Same board, many names
Battery makers order Pace boards and fit them under their own brand, with different firmware and front panels. Owners report Pace boards in Jakiper and Gobel Power racks, among others, but the label alone proves nothing: two batteries with the same name can differ. Tell us the battery name, the board reference if you can see it in PbmsTools, and send a photo of the front panel: we check and test that version before shipping.
Displays
| Where | What |
|---|---|
| Screen | Charge, voltage, current, power, status |
http://moniwatt.local | Live cells, warnings, temperatures, daily chart |
| Home Assistant | Auto-created device over MQTT |
| JSON API | All values for your scripts |
| Cloud dashboard (optional, free) | History, CSV, alerts |
Live demo
See it with your own eyes
Open the same dashboard owners use, running on a simulated Pace battery. No account needed.
Open the live demo
Keep reading
See what the Pace board inside your rack knows
Order Pace Monitor, shipped on 10 November 2026 and tested on a Pace BMS before it leaves.
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