Battery
WattCycle lithium batteries
Your WattCycle pack cell by cell: voltages and imbalance, temperatures, state of health, cycles and remaining capacity — and every BMS protection becomes an alarm on the deck.
Via Deeck Bridge
The Bluetooth Victron dashboard · App Store on 1 November 2026
The intelligent dashboard for the Victron system without a GX.
Your SmartShunt, MPPT and chargers already broadcast over Bluetooth. Deeck listens and turns them into one live dashboard — on iPhone, CarPlay and Apple Watch. No GX, no cables. Ask it how much battery is left, and it answers.
- iPhone
- CarPlay
- Apple Watch
- Siri
- Widgets
Hey Siri, Deeck autonomy
Deeck: You have about 3 days and 8 hours of autonomy before the reserve.
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Deeck Pro for life, at a special price
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What Pro includes
- CarPlay, with the Siri tab: the questions ready to tap while you drive
- Apple Watch: charge and autonomy on your wrist
- Your dashboard from anywhere with Deeck Bridge, no GX
- Solar forecast and alarms even with the app closed
Pro is active in Deeck from 1 November 2026, on this Apple ID.
Pre-order Pro
Your 48 hours are over. Until 31 October you can still pre-order Pro for life at the public price: on launch day it's active in the app, on this Apple ID.
Pro is active in Deeck from 1 November 2026, on this Apple ID.
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- Sign in with Apple, no password
- Paid via Paddle, receipt by email
- Guarantee: refund if we're not out by 15 November
- 14 days to change your mind
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What Pro includes
- CarPlay, with the Siri tab: the questions ready to tap while you drive
- Apple Watch: charge and autonomy on your wrist
- Your dashboard from anywhere with Deeck Bridge, no GX
- Solar forecast and alarms even with the app closed
Secure payment with Paddle · 14 days to change your mind · automatic refund if Deeck isn't out by 15 November
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I've sent you two emails. The confirmation from hello@deeck.app and the Paddle receipt. If you don't see them within a few minutes, check your spam or junk folder and move them to your inbox: that way the launch email on 1 November lands in the right place.
On 1 November 2026, sign in to Deeck with this same Apple ID: Pro will already be active. No codes to enter.
Who it's for
If your Victron devices only talk Bluetooth, Deeck is for you.
A camper, a van or a boat usually runs a SmartShunt, a SmartSolar charger, maybe an Orion or a Blue Smart charger — and no GX device to tie them together. VictronConnect shows them one at a time. Deeck shows the whole system, all the time.
Campervan & RV
House battery, solar, engine charge and mains — one deck on the phone, one on CarPlay while you drive.
Boat
Service and starter batteries, solar and shore power. Glance at the wrist before you cast off.
Off-grid cabin
Autonomy in days, a forecast that watches the sky, and alarms that reach you even far away.
- 1deck, 3 screens
- 5questions for Siri
- 0cables to run
- 7days of solar forecast
iPhone
The whole system, on one deck.
Everything a monitor should tell you, in a screen you actually enjoy looking at. Built for iPhone first, with the care of an Apple-native app.
Deeck answers the questions you ask yourself on board: how long until the reserve, what tomorrow’s sun will bring, when it’s time to charge.
Autonomy in days and hours
Computed from how your battery is really behaving, counting down to the reserve you choose — not to zero.
Energy and history
Production versus consumption, solar, engine and shore broken out, state-of-charge trend over 24 hours, 7 or 30 days. Persistent history and CSV export.
Solar forecast
Seven days ahead, calibrated on your own panels and habits. It tells you whether this weather keeps you above the reserve — or when you'd dip below.
Alarms and notifications
Low charge, low or high voltage, high temperature, with a heads-up before the critical level. A notification inbox keeps the story.
Live deck
State of charge, voltage, current and the power flowing between solar, engine, mains, battery and loads — updated several times a second, straight from Bluetooth.
Widgets and Siri
Small, medium and large Home Screen widgets with state-of-charge ring, autonomy, sources and the weekly balance. Ask Siri for the battery, the autonomy, the solar production or a full summary.
Dashboard mode
Mount the phone or an iPad on board: always-on display, night dimming, touch lock with PIN.
Backup and transfer
Move to a new iPhone with one AirDrop, set up a second device by scanning a QR code — and with Pro, an automatic iCloud backup that restores itself on a fresh install.
Setup
Three taps. No keys to copy.
No encryption keys to copy by hand: Deeck reads them for you, with the same PIN you already use in VictronConnect.
- 1
Find
Open Deeck near your system. Every Victron Smart device around you shows up on the radar.
- 2
Enter the PIN
Tap a device, type its Bluetooth PIN once. Deeck reads the key by itself and closes the connection.
- 3
Done
The deck is live. Keys never leave your iPhone. Move to a new phone with one AirDrop.
CarPlay
Your battery, on the dash.
Your Victron dashboard, already on CarPlay. Nothing to set up: while you drive, the head unit shows what matters — in the glanceable layout Apple designed for driving.
Deck tab
One row per reading, the number big, a colour-coded tile beside it: battery, starter battery, solar, DC-DC, mains, loads, autonomy. Red only when something needs you.
Energy tab
Now, today and the forecast, plus the last seven days produced and consumed.
Devices tab
Every device with its live status. Tap one for its key numbers — state of charge, volts, amps, yield, panel voltage.
Siri tab
Three questions ready to tap: battery, autonomy, solar. The answer appears on the screen as text; to hear it, ask Siri out loud.
Alarms on the head unit
A battery alarm pops up on the car display, the way navigation alerts do.
Always in step
Same numbers as the phone, refreshed at the cadence Apple sets for driving. CarPlay is part of Deeck Pro.
Apple Watch
A glance at the wrist.
A native watchOS app, not a mirror of the phone: three pages, one swipe, the same data as the deck.
Deck page
Colour tiles for battery, solar, engine, loads and autonomy — readable at arm's length.
Energy page
Autonomy as the hero number, today's yield, the last seven days and the forecast.
Devices page
Your devices in a flat list; tap one for a two-column grid of its key numbers.
On the watch face
A complication with the state-of-charge ring in Deeck green — grey when the data is older than 30 minutes, so you never trust a stale number.
Alarms on the wrist
Battery alarms reach the Watch like any iPhone notification — you feel the tap.
Kept in sync
Values arrive from the iPhone over Watch Connectivity, so the Watch shows exactly what the deck shows. Apple Watch is part of Deeck Pro.
Siri
Ask your system.
Ask Siri and hear the answer, without opening the app: on the iPhone, on the Watch, in the car. The questions are free.
Hey Siri, Deeck battery charge
Siri The camper van battery is at 78 percent, 13.3 volts.
Hey Siri, Deeck autonomy
Siri You have about 3 days and 8 hours of autonomy before the reserve.
Hey Siri, Deeck summary
Siri Battery at 78 percent. 268 watts coming in, 468 watts of loads.
Pro: set your reserve or your battery warning by voice, or start the climate.
Questions · Free
- Deeck battery charge
- Deeck autonomy
- Deeck solar production
- Deeck summary
- Deeck climate status
Actions · Pro
- Deeck reserve — the level your autonomy counts down to, 5–50 %
- Deeck battery warning — the charge level that warns you, 10–90 %
- Set / stop the Deeck climate — Siri asks the degrees and starts the EZA, or switches it off
- Deeck dashboard mode — the deck stays on, on board
Siri answers with the last values Deeck saw. Siri phrases work in English, German, Italian, French and Spanish.
Siri phrases need iOS 16 or later; actions open Deeck to finish the job. Deeck is built on App Intents, so every phrase is also a Shortcut you can use in an automation.
Third-party integrations
Beyond Victron.
The rest of your system deserves a place on the deck too. Deeck integrates the equipment that off-grid people actually install — and shows it like any other device.
Climate
EZA air conditioners
Pair the EZA over Wi‑Fi and control it from the deck: Cool, Heat, Dry, Fan and Auto modes, set temperature, fan speed, Sleep, Health and X‑Fan. Near the camper on the onboard Wi‑Fi, far away through the cloud — and from CarPlay and the Watch too.
LAN · cloud · remote
More integrations are on the way. Tell us what's on your boat or in your van.
Deeck Bridge
Your Bluetooth system, online. No GX.
Deeck Bridge is free software that runs on a small box aboard — a Raspberry Pi or the Cerbo GX you already have: it works on both. It listens to your Victron devices over Bluetooth, exactly like the app does, and puts them online. From that moment the deck works from any distance, and the Bridge watches your batteries around the clock.
Bluetooth
Near
Live readings, several times a second. Works with the app closed through widgets and background updates.
VRM
Far
Your system from anywhere, on the same deck. The solar forecast uses your installation's location.
Deeck Bridge
Bridge
Bluetooth-only system? The bridge publishes it to VRM and sends push alerts to the phone in your pocket. It installs from the Venus OS menus, no terminal.
Without Bridge
- The deck works only near the vehicle
- Alarms only while the app is open
- WattCycle and EZA only on the onboard Wi‑Fi
- Nothing to see from home
With Deeck Bridge
- The same deck from home, the office, the beach
- Push alerts 24/7, even with the app closed for days
- EZA climate switched on before you arrive
- WattCycle battery always in view, cell by cell
- Device settings changed from a distance
Camper in winter storage
The battery slowly drains under the cover. You don’t drive there to check: the Bridge tells you when it’s time to charge.
Boat at the mooring
The service battery checked every 30 seconds. A voltage drop, a charger that stopped: you know before the weekend.
Off-grid cabin
See what the panels produced today, switch the EZA on an hour before you get there, walk into a warm room.
How it works
Your Victron devices broadcast over Bluetooth, as always.
A small box aboard listens to them — like the app does when you are there.
It puts the readings online and checks the system battery every 30 seconds.
Deeck shows you the deck anywhere and alerts you on the phone, even with the app closed.
The keys stay yours: the app hands them to the Bridge on your own Wi‑Fi. We only deliver the notification; your readings never pass through us. The Bridge is free: the remote deck and alerts it enables are part of Deeck Pro.
No GX? The Bridge is the cheaper, simpler way online.
A Cerbo GX needs a cable to every device. The Bridge runs on a Raspberry Pi, costs less and touches nothing on your system.
Why the Bridge, not a Cerbo
- A Raspberry Pi costs less than a GX, and there is no wiring to pay for
- Your devices stay exactly as they are: nothing to re-pair, nothing to reconfigure
- Everything Pro does — remote deck, push alerts, climate from a distance — with one small box
- No terminal: SetupHelper from a USB stick, then the Bridge from the Venus OS menus
What you need
- A Raspberry Pi 3 or 4 with Venus OS v3.4x or later. Built-in Bluetooth is enough to read your devices; a USB Bluetooth adapter is recommended if you change settings remotely
- A microSD card (16 GB or more)
- A 12 V → USB power adapter, or any USB socket aboard
- Internet aboard: a router (Ethernet is best), a 4G dongle or a phone hotspot
Less than a GX, once. The software is free; it activates with Deeck Pro.
Guide: Venus OS and the Bridge on a Raspberry Pi, step by stepAlready have a GX? Install the Bridge on it.
The Bridge works on a Cerbo GX or other GX device just as it does on a Raspberry Pi. Your system already reaches Victron’s cloud. The Bridge adds the Bluetooth devices Venus OS doesn’t read today and everything Deeck builds on top.
Why Deeck, if you have VRM
- A CarPlay app, Siri and the Deeck deck. VRM has push alerts, a Watch app and widgets, but no CarPlay app and no Siri
- SmartShunt, MPPT, Orion XS and IP22 over Bluetooth, which Venus OS 3.81 doesn’t read today, show up in Deeck and in VRM graphs
- Alarms on the system battery, checked on the Bridge every 30 seconds and pushed with the app closed, even when VRM is silent about your Bluetooth devices
- Installs from the GX’s PackageManager. On a GX fresh from the factory, add SetupHelper from a USB stick first. A Venus GX needs a USB Bluetooth adapter
What the Bridge adds on your GX
- SmartShunt, MPPT, Orion XS and IP22 over Bluetooth, as native devices in the GX device list and in VRM
- WattCycle batteries and the climate, also from a distance
- Push alerts on the system battery (charge, voltage, temperature) to up to 8 iPhones
- Device settings changed from a distance
Requirements: Venus OS v3.4x or later with Bluetooth, as on a Cerbo GX or an Ekrano GX. The Venus GX’s Bluetooth only handles network setup, so it needs a USB Bluetooth adapter.
Guide for Cerbo GX ownersPricing
The app is free. Pre-order Pro and it's yours for life.
Deeck Pro
Pre-order until 31 October€39.90once, for life: pre-order until 31 October. From 1 November the same features come with Deeck Plus, an annual subscription.
Pre-order Pro- CarPlay, with the Siri tab: the questions ready to tap while you drive
- Apple Watch: state of charge and autonomy on your wrist
- Everything the free app does
- Deeck Bridge: remote deck without a GX, push alerts 24/7 (or VRM)
- Several systems, one app: camper, boat, off-grid home, switch between them with a tap
- Solar forecast, days ahead
- Advanced multi-threshold alarms, push with the app closed
- 90 days of history and CSV export
- Automatic iCloud backup
- Dashboard mode with touch lock
- WattCycle and EZA integrations
Download it free: see your system live over Bluetooth, with widgets and Siri. Then decide.
Pro stays yours on a new iPhone too. People on the list get a reserved pre-order offer, for a limited time.
Compatibility
Works with the Victron Smart devices you already own.
Deeck reads the Bluetooth Instant Readout broadcast, the same one VictronConnect already shows. Today it decodes these devices.
- SmartSolar MPPT
- SmartShunt and BMV-712
- Orion XS
- Orion-Tr Smart
- Blue Smart IP22 / IP65 chargers
- Phoenix Smart inverters
- DC energy meters (SmartShunt)
Available in English · Italiano · Deutsch · Français · Español
Requires iOS 15 or later. CarPlay needs a compatible head unit. The Apple Watch app requires watchOS 10.
About Deeck
In plain words
- Deeck is an iPhone app that monitors Victron Energy systems over Bluetooth, using the Instant Readout broadcast of Victron Smart devices.
- It is made for systems without a Cerbo GX or other GX device: no wiring or extra hardware is needed for local monitoring.
- It includes a CarPlay app and a native Apple Watch app, Home Screen widgets and Siri shortcuts.
- It adds what VictronConnect does not offer on iPhone: a single dashboard for the whole system, persistent history, autonomy in days and hours, a solar forecast and alarms.
- Remote access works through a Victron VRM account or through Deeck Bridge, a free package for Venus OS on a Raspberry Pi or on the GX device you already have.
- Deeck also integrates WattCycle lithium batteries and EZA air conditioners.
- Deeck is an independent product and is not affiliated with Victron Energy B.V.
- Deeck is free for local monitoring; Deeck Pro (CarPlay, Apple Watch, solar forecast, remote access and Bridge) is yours for life with a pre-order until 31 October 2026; from 1 November the same features come with Deeck Plus, an annual App Store subscription.
Questions
Good to know
What is Deeck?
Deeck is an iPhone app that turns your Victron Smart devices into one live dashboard over Bluetooth, with companion apps for CarPlay and Apple Watch. It shows state of charge, power flow, energy history, autonomy and a solar forecast, and warns you with alarms.
Do I need a Cerbo GX or any Victron hardware beyond my devices?
No. Deeck reads the Bluetooth broadcast of your Smart devices directly. A GX device (or Deeck Bridge) is only needed if you want to see your system remotely.
Which Victron devices work with Deeck?
Over Bluetooth, straight from the iPhone: SmartSolar and BlueSolar MPPT, SmartShunt and BMV, Orion XS and Orion-Tr Smart, Blue Smart chargers, Phoenix inverters, MultiPlus and Quattro through the VE.Bus Smart dongle, Multi RS and Inverter RS, Lynx Smart BMS, Lithium Battery Smart and Smart BatteryProtect; the newest ones are marked Beta. With a GX, Deeck also shows everything the GX sees. The full list, with lithium batteries, sensors, climate and heating, is on the Supported devices page.
Does Deeck replace VictronConnect?
For watching your system, yes — that's what it's built for. Device configuration and firmware updates stay in VictronConnect. Deeck never keeps a connection open, so VictronConnect and your GX keep working as before.
Is there a CarPlay app for Victron systems?
Yes — Deeck. It shows a glanceable deck of battery, solar, DC-DC and loads on the head unit, an energy tab, your devices, Siri questions and battery alarms on the car display.
Is there an Apple Watch app?
Yes. Deeck ships a native watchOS app with three pages — Deck, Energy and Devices — fed by the iPhone, plus battery alarms on the wrist.
Is it safe? Where do my keys go?
Encryption keys are read once and stored in your iPhone's Keychain. They are never sent to us. Backups go to your iCloud, encrypted by Apple.
What is Deeck Bridge?
Free software for Venus OS that runs on a Raspberry Pi or on the GX you already have: it works on both. It publishes your Bluetooth-only devices to your VRM account, checks the system battery every 30 seconds, sends push alerts to your phone and lets Deeck reach WattCycle and EZA from a distance. It installs from the Venus OS PackageManager and is configured from the app. See the Bridge guide.
Is Pro a subscription?
No, Pro is for life: €39.90, paid once with the pre-order until 31 October, and it stays yours after 1 November too and on a new iPhone. From 1 November Pro is no longer sold: the same features come with Deeck Plus, an annual App Store subscription that renews automatically, which you manage or cancel in your Apple ID settings; if you pre-ordered, you keep Pro for life, with no subscription. People who join the list get a limited-time pre-order offer. Free never expires, so you can try Deeck for as long as you like before deciding. And if you change your mind after a pre-order, you have 14 days to do so.
When does Deeck come out?
Deeck is on the App Store on 1 November 2026. You can join the list now with Sign in with Apple and pre-order Pro: it is active in the app on launch day, on the same Apple ID. If Deeck is not on the App Store by 15 November 2026, every pre-order is refunded automatically.
Android?
Deeck is built for iPhone first. An Android version is planned.
Is Deeck affiliated with Victron Energy?
No. Deeck is an independent app and is not affiliated with or endorsed by Victron Energy B.V. Victron and VictronConnect are trademarks of their owner.
Your whole Victron system in your pocket, in your car, on your wrist.
Deeck lands on the App Store on 1 November 2026. Join the list now: subscribers get a reserved pre-order offer on Pro.
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