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ZeroLogs for Android

Your Zero’s battery, rides and logs on your phone. The app reads the motorcycle over Bluetooth and never writes to it. What it gathers goes to your zerologs.bike account, next to the logs you upload there.

Get it on Google PlayWithout Google Play

Screenshots

  • The Bike tab with an FXS connected and parked: 68 % charge, 107.0 V, 35 of 52 Ah left, 28 cells between 3.816 and 3.829 V, the temperatures and the odometer.
    The battery as the motorcycle reports it
  • The battery as its controller reports it: capacity, energy left, one bar for each of the 28 cells with the lowest and the highest named, and the temperature probes.
    Every cell, side by side
  • The ride dashboard at 53 km/h: 60 % battery, 2.9 kW, enough charge to get home, consumption in Wh/km, energy used, tyre pressures and pack temperature.
    The ride dashboard
  • The tyre sheet over the ride dashboard: front 2.29 bar and rear 2.42 bar, each with the pressure corrected to the outside temperature, and each sensor’s battery and signal.
    Tyre pressure from Bluetooth sensors
  • A log download on the Bike tab: the motorcycle’s log done, the battery’s log at 57 %, with the speed and the time left.
    The motorcycle’s logs, over Bluetooth
  • The summary shown when a ride ends: 6.9 km in 9 minutes, battery from 68 to 61 %, 0.43 kWh at 62 Wh/km, and the energy regeneration put back.
    Every ride, summed up when it ends
  • The battery page on zerologs.bike: 76 % of the capacity left, 94 % of a typical pack that age, and the range of charge the pack is used in.
    Battery health on zerologs.bike
  • The timeline on zerologs.bike: each day’s rides and charges with distance, energy and battery level.
    Rides and charges on zerologs.bike, day by day

What it does for you

  • Know the battery before you ride

    The charge level live, from the motorcycle itself. On the Bluetooth Classic models you also get the pack voltage, the temperatures and every cell, so you can watch for a cell drifting away from the others.

  • The logs without a laptop

    With the key on and the phone next to the motorcycle, the app downloads the motorcycle’s and the battery’s logs in a few minutes and uploads them. zerologs.bike then reads them for battery health, charges and errors. If the key goes off or the link drops halfway, the download carries on by itself the next time the motorcycle is on and parked.

  • Rides that record themselves

    With the motorcycle connected, the app starts a ride when you ride off and stops it when you park. The phone’s GPS gives the route; the motorcycle adds speed, power and battery every second. You can also start a ride with the phone alone: it records the route, and the ride joins the motorcycle’s log once that is uploaded.

  • A dashboard made for a glance

    Big numbers on a dark screen: speed, battery left, consumption, and whether there is enough charge to get home. While you ride, a button acts only when held, so brushing the screen with a glove does not stop the ride. Holding one takes a photo or starts a live link that someone at home can follow.

  • Tyre pressure on the dash

    Pair Bluetooth tyre pressure sensors and the pressure sits beside the speed, corrected to the outside temperature.

  • Works with no signal

    Rides, logs and photos stay on the phone, where you can open them offline, and go up to zerologs.bike once the phone has a network again.

How the data moves

Your Zero
answers reads over Bluetooth
reads only, from a fixed list
ZeroLogs app
dashboard, ride recording, offline queue
HTTPS, when there is a network
zerologs.bike
rides, charges, battery health, parsed logs

You sign in once with your zerologs account, or create one in the app. Rides recorded with the app stay on the phone too, so they show offline. A ride recorded while the motorcycle is connected merges the phone’s GPS with the motorcycle’s own readings.

Which Zero gets what

  • S, SR, DS, DSR up to 2023 · FX, FXS, FXE
    link
    Bluetooth Classic
    live battery
    every cell
    log download
    yes
    rides
    phone + bike
  • SR/F, SR/S, DSR/X, S/F · S, SR, DS, DSR from 2024
    link
    Bluetooth LE (new)
    live battery
    charge level
    log download
    yes
    rides
    phone + bike
  • XB, XE, LS1
    link
    none known
    live battery
    —
    log download
    —
    rides
    phone

The newer models talk Bluetooth LE, and that side of the app is new: tell us how it goes with yours. No Zero at hand? The ride recorder works with the phone alone.

Your motorcycle stays as it is

One fixed list decides every message the app can send to the motorcycle, and every entry on it is a read. A read that carries a parameter is refused, because a parameter is something we do not understand. The app never changes a setting, the clock, the charge target or the firmware.

The full list (Bluetooth Classic models)
PrVrprotocol version
GbkiVIN, make, model, part number
PwPkpack voltage, cell voltages, SoC, current, temperatures
BtStbattery state
MbbRmotor, controller, speedometer, armed and kickstand bits
DSt1–3the dash: trips, range, motor °C, error code, charge time
MbbDthe motorcycle’s log, one 256-byte block per request
BmsDthe battery’s log, the same transfer
Ecusevery controller: model year, hardware and firmware part numbers
Errsthe active fault codes
CmChonly “read from address 0”, before a log download
never sent: Upld, Hash (firmware) · every other CmCh (drive parameters, test mode, boot bank)

The Bluetooth LE models get the same treatment, with the body of each message checked too. How the conversation works, measured on real captures: the Bluetooth protocol.

Without Google Play

For a phone without Google Play: a de-Googled phone, a spare phone that lives on the motorcycle, or one that installs from Aurora Store. The file is the one Google Play itself builds for this version and signs with its own key, so it is the same app the store gives everyone else.

  • It does not need Google Play services. We installed it on an Android with no Google apps at all, signed in, recorded a ride with the phone’s GPS and sent it.
  • A spare phone kept on the motorcycle needs a network once, to sign in. After that, rides and logs wait on the phone and go up the next time it finds Wi-Fi.
  • It installs over a copy from Google Play or Aurora as an update. Your rides and settings stay on the phone.
  • It does not update itself. When a new version comes out, the app says so (the app changelog lists them): open this page in your phone’s browser and download it again. Updates from Google Play install over it too.
  • Before installing, check the file: its SHA-256 and Play’s certificate are below. AppVerifier on the phone, or apksigner verify --print-certs on a computer, shows both.

Looking for the file…

What Android will ask, and why

  • Nearby devices
    Talk to the Zero you paired through Android’s own pairing dialog, and listen to tyre pressure sensors. The scan is flagged never-for-location.
  • Location (while using the app)
    Only while a ride records, with a notification on screen the whole time. No background location.
  • Notifications
    A recording in progress, a log download, an upload done.

What the app collects, and why, is in the privacy policy. You can delete your account from the app or from the website: what that deletes, and when.

New versions first

New versions reach a testers’ track on Google Play before they reach the store. If you like trying things early and telling us what broke, join it with the Google account on your phone: first the testers’ group, then the test.

1. Join the group2. Accept the test

The group is only a list: nobody posts in it, and only we can see who is in it. Leave it to leave the test. Something wrong? Report a problem on the app’s Bike tab sends us what happened with the app’s technical log.

Not affiliated with Zero Motorcycles, Inc.