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Mobile app

Know your battery from your phone

The SEVENERGY app reads the BMS directly over Bluetooth Low Energy — state of charge, current, individual cell voltages and every protection event. No account, no cloud.

Coming soon

Final testing

The app is in final testing. Leave your email and we will notify you at launch.

Screens

Six screens, one battery

Tap through what you actually see on the phone.

Overview

State of charge, pack voltage, charge and discharge current, power, temperature, and the estimate of time to full or empty at the present load.

Cells

Each cell voltage, the highest and lowest cell, the spread in mV and which cells are balancing. A spread under 50 mV is normal.

Trends

Voltage, current, SOC and temperature history over 1 hour, 24 hours, 7 days or 30 days.

Alerts

A timeline of protection events — over-voltage, under-voltage, over-current, over-temperature and short circuit — including what triggered each one and when it cleared.

Settings

Celsius or Fahrenheit, auto-reconnect, battery name, BMS firmware version and Bluetooth address.

Help

The support button opens an email with the model and serial number already attached, so a case can be opened without back-and-forth.

SEVENERGY app — overviewSEVENERGY app — cellsSEVENERGY app — trendsSEVENERGY app — alertsSEVENERGY app — settingsSEVENERGY app — help
Setup

Connected in four steps

Bluetooth pairing happens once. After that the app reconnects automatically whenever you are near the battery.

Power on the battery

Press the battery switch, or connect a charger once to wake the BMS. A new pack ships in transport mode with Bluetooth off.

Enable Bluetooth on your phone

Open the app and grant the Bluetooth permission. No account and no internet connection are required for monitoring.

Add your battery

Tap “+” to scan. Each battery broadcasts its own name and serial number — pick the one printed on your battery label.

Read the dashboard

Voltage, current, power, state of charge and temperature appear within a few seconds.

Privacy by design

Your data stays on your phone

Readings go straight from the battery to your phone. Nothing is uploaded, so there is nothing on a server to lose.

Bluetooth only

Readings come straight from the BMS over BLE. The app never uploads them anywhere.

No account

Nothing to sign up for, nothing to forget, no password to reset and no profile to sell.

Works offline

Monitoring works with the phone in flight mode plus Bluetooth — no SIM, no Wi-Fi.

Cell-level detail

See each cell, the spread in mV and which cells are balancing at this moment.

Up to 30 days of history

Voltage, current, SOC and temperature over 1 hour, 24 hours, 7 days or 30 days.

Protection timeline

Every over-voltage, over-current and temperature event, with the trigger and the recovery.

Compatible with every SEVENERGY battery that has a Smart BMS and Bluetooth module. The app cannot connect to batteries without a Bluetooth module — the model list is on the products page.

Check compatible models Read the privacy policy

Questions about your battery?

Send us the model, the serial number and a screenshot from the app — we will tell you what the BMS is doing.

Contact support Product specifications