The TITAN App
TITAN.
In your pocket.
The most advanced lithium battery monitor in the world. Live data, an on-device intelligence engine that learns your install, an AI Engineer that actually knows your battery, secure pack claiming. Designed and built in Cheltenham.
Every volt, every amp, every second.
The screen you'll spend the most time on. State of charge with charge / discharge direction at a glance. Pack voltage, current, temperature, time-to-empty, time-to-full - the readings that actually matter, surfaced first.
- SOC dialWith voltage history sweep and current arc on either side
- Time-to-empty / time-to-fullCalculated from your real usage, not nameplate maths
- Per-cell voltagesImbalance highlighted before the BMS even flags it
- Pack powerLive wattage in / out, ambient temperature, MOSFET temperature
Your battery.
Intelligently managed.
No other lithium battery app does this. Built into the same app as the live monitor, an intelligence engine that learns how you use your battery, recognises the appliances on the other end of it, and tells you when something looks off. Most of it runs on your phone. None of it shouts.
It watches.
Then it works you out.
After a handful of cycles, the app has a baseline for your average daily consumption, your typical depth of discharge, your peak draw, your charge patterns and your standing idle current. Everything afterwards is judged against your real usage - not a generic spec sheet.
- Honest learning meterAn AI Confidence score, made up of telemetry days, cycle count, SOC range observed and the load fingerprint maturity. We tell you exactly how sure the app is.
- Real time-left, not nameplate time-leftBuilt from your actual usage, not the spec sheet
- Long-term health forecastProjected cycle life and years remaining, recalculated every cycle
- SOC drift detectionSpots the slow creep that lead-acid hangovers cause, then nudges you to recalibrate
- Charger fault evaluatorHas the charger started missing its target voltage? The app sees it before you do, and tells you in plain English.
- Parasitic draw alertsIdle current creeping above what's normal for your install gets called out, not buried in a chart
It knows your kettle from your fridge.
The intelligence engine watches every step change in pack power, then matches it against a built-in library of leisure-vehicle and marine load signatures: kettle, fridge, laptop, LED lighting, fan, water pump, induction hob, TV, diesel heater, phone charge. The longer you use the battery, the better it knows what's on the other end of it.
Tell it once
During setup, tick the appliances you actually have on board. The recognition engine is biased toward them straight away, instead of guessing blind.
Watches the BMS, not a microphone
The app reads pack power direct from the BMS at sub-second cadence. Load steps as small as 50W get picked up. No smart plugs, no extra hardware, no audio.
Tap to correct, it remembers
If the app calls a 90W event "Laptop" but it was actually your TV, tap to relabel it. That correction sticks and feeds the next match. You're training your own model.
Per-appliance daily energy
Each detected event rolls up into a per-appliance Wh total, so you can see at a glance which devices ate the most of your battery yesterday.
Confidence-gated
You only see the appliances the app is reasonably sure about. Low-confidence detections never reach the screen - they sit in the background being graded for next time.
Nobody else does this
Every other leisure battery app shows you live SOC and a chart. TITAN App V2 is the only one that watches the load itself and names it. We've not found a single competitor doing the same.
Pre-loaded with leisure, marine, off-grid, climate and cooking appliances. Tick what you've actually got - the AI then biases its recognition toward your kit instead of guessing blind.
Working harder than usual?
The app already knows why.
Each appliance the engine has learned gets its own rolling baseline. When today's energy use steps clearly above that baseline, the app flags it - and works out whether it's the appliance, or whether it's just a warmer day for the fridge, or a colder day for the diesel heater. Real explanation, not a panicked red badge.
Fridge running harder today
Up 32% on your usual daily energy. Likely the 26°C forecast - we've cross-checked the local weather. No action needed.
Water pump using more than usual
Up 64% on your usual. Weather doesn't explain it - worth a quick check for a leak, sticking switch or dripping tap.
Notifications are deliberately rare - the engine waits for a solid baseline (median + median absolute deviation across multiple days) before it'll fire one. No spam, no boy-who-cried-wolf.
Tell it your panel watts.
Get your day in Ah.
Put your total panel wattage into the setup screen and the app will pull a 24-hour shortwave radiation forecast for your exact location and convert it into an expected harvest in Ah for today and tomorrow. As the days roll past, it learns how your panels actually behave - shaded mounting, dirt build-up, regulator inefficiency - and tightens that estimate around your real-world yield.
- Forecast in Ah, not watt-hoursBecause Ah is the number you actually budget around when you're sat in the van
- Inferred solar trackingEven if you skip the setup question, the app spots daytime, low-current charge sessions with UV present and starts logging your solar Ah anyway
- Underperformance alertsThree days in a row at less than half of expected yield, and the app suggests checking panels, shading or wiring
- "Strong solar tomorrow"When the radiation forecast is high and you're below 60% SOC, the app tells you to ease off heaters today - tomorrow does the lifting
Even the solar
your kettle drinks.
Run an appliance while the sun's out and some of that energy travels straight from panel to load - never landing in the pack at all. The pack only sees the leftover. Until now, the AI only saw the leftover too, and quietly under-counted what your panels really did for you.
TITAN AI now learns what your panels deliver at each UV reading, then credits the direct-to-load portion back to your daily solar total and to the appliance that actually used it. Your daily numbers finally line up with what was really going on outside the van.
- Honest solar totalsWhat your panels actually produced - not just the slice that made it into the battery
- Truer appliance recognitionThe kettle still pulls 150A whether the sun's out or not - the AI sees the real draw, not the solar-masked version
- A real "% solar" figureFor the first time, the proportion of your day powered by panels means what you'd think it means
- Your dials stay honestThe Monitor screen, SoC dial and current dial keep reading what the BMS reports. The correction lives in the AI layer where it belongs - cross-check with a multimeter all you like.
All the BMS sees. The 10A solar is invisible because the load ate it first.
The AI splits the truth out for you. The Monitor screen still shows the BMS reading - we don't lie about what the shunt is doing.
Two batteries.
One conversation.
If you've got more than one TITAN paired into a parallel bank, the app treats them as one system and watches the relationships between them. It builds a rolling spread for SOC, current and state-of-health across every pack in the bank, then alerts you the moment something starts drifting away from its neighbours - the textbook early sign of a tired connection or a pack on its way out.
- SOC spread >20%One pack lagging well behind the others? The app calls it out and recommends a top balance.
- Current spread >30% of bank loadSharing isn't even - usually a loose / corroded link or undersized cable. Pull and re-torque before the imbalance becomes thermal.
- SOH spread >10%Health drifting between packs is how a single weak battery slowly drags a whole bank down. Caught early, easy fix.
- OVP release suggestionParallel banks with active balancers benefit from a slightly higher per-cell OVP release. The app suggests 3.50V/cell where appropriate - one tap to apply.
An engineer.
In your pocket.
Trained on TITAN's own knowledge base, language and battery specs. Ask anything about your pack, in your own words, and get a real answer back - not a chatbot deflection. The AI Engineer reads your live data while you're talking to it, and it knows what your battery has been doing for the last few weeks too.
"Why isn't my battery charging?" - "How many days of power do I have?" - "Is my battery healthy?" - "Why are the cells unbalanced?"
- What it seesYour live SOC, voltages, currents, temperatures, protection history and the intelligence engine's learned profile - all attached to the conversation, every message
- What it knowsBMS specs, Victron CANBUS / DVCC integration, every page of our install guide, our warranty terms, and the V2 app itself
- What it won't doInvent numbers, quote competitors' specs, or fake an answer. If a question is outside its knowledge, it'll say so and point you to support.
Thirty-six things it watches for.
You only hear about the ones that matter.
The intelligence engine quietly evaluates dozens of conditions every cycle. Most never reach you - they're just used to refine its model. Push notifications are capped at three a day, deduplicated for 24 hours, and held back until the engine has at least five sessions and three active days under its belt. The result: when your phone pings, it's worth reading.
Pack health & usage
Incomplete-charge nudges, frequent deep-discharge warnings, battery-left-uncharged alerts, idle-too-long flags, SOH below 90% / 80% thresholds, unusual self-discharge, MOS temperature delta.
Charging behaviour
Slow-charge tracking against your average, charger missing target voltage, recurring protection trips, cell drift before the BMS reports it, frost / cold-charge warnings on very cold days.
Solar & daily yield
Solar yield estimates for today and tomorrow, energy-positive day callouts, three-day underperformance alerts, "strong solar tomorrow" suggestions when you're low and the forecast is good.
Banked installs
SOC spread, current spread, SOH spread between packs in a parallel bank. Cell imbalance hints. Parallel OVP release recommendation for active balancers.
Patterns & milestones
Consumption up vs last week, voltage sag under typical loads, weekend-user pattern detection, weekly efficiency summary, cycle milestones (250, 500, 1000...), overnight SOC drops.
Carousel insights
Slow charge today, end-of-day runtime forecast, energy-positive solar day, charge complete, voltage sag, "you'll be at 18% by morning" - softer, in-app prompts that never push-notify.
A health certificate.
That holds its value.
Generate an AI-backed health report at any time. Cycle count, state of health, projected remaining life, balance history. Hand it to a buyer, an insurer or a workshop and prove the pack's condition - no guesswork, no markdown.
Your battery.
Yours alone.
Every TITAN battery now uses a locked comms package that no third-party app can write to. Pair it. Claim it. From that moment, you are the only person who can change parameters, hibernate the pack or restore it.
If you bought from titanlithium.co.uk in the last year or so, your account is already linked to your purchase. Sign in once, claim the battery, done. Anyone else holding a TITAN app sees read-only data and nothing more.
- Battery claimingOne-tap once you're signed in - locks the pack to your account
- Locked parametersHibernation, balance thresholds and protection limits - only you
- Read-only for othersAnyone unpaired can still see live data, but can't change a thing
A monitor app that earns its place on your home screen.
- Live data
- Real-time
- Pattern learning
- On-device
- Pack security
- Account-locked
- Designed in
- Cheltenham
Everything else you need.
Nothing you don't.
Per-cell voltages. Full session history with charts. Every BMS protection event logged with timestamp. One-tap auto-connect. Cloud sync straight to our support team for remote diagnosis.
Per-Cell Data
Cell voltages, pack summary, state of health and MOSFET temperature - the full BMS readout
Session History
SOC, current and temperature plotted across the day. Every charge and discharge event logged
Protection Events
Every BMS trip logged with a timestamp - cell drift, MOSFET faults, temperature, short-circuit
AI Confidence
Exactly what the AI has and hasn't learned yet - telemetry days, cycles, SOC range, load-fingerprint maturity
Auto-Connect
Open the app, you're connected. Set a default battery and TITAN reconnects every time you launch
Cloud sync
Sign in and your battery's data syncs back to us in the background. If you ever need help, we already have the diagnostic - no screenshots, no shipping packs back to Cheltenham for testing. We can usually answer the question before you've finished asking it.
Push notifications
Get alerts the moment something changes - protection trips, charge complete, low SOC, cell drift. The app keeps a background ping running where the OS allows it. Android holds it reliably; iOS gets it most of the time.
Privacy first
Sign in with a one-time email link, no passwords. Live battery data stays on your device unless you sync. See the full privacy policy or request account deletion.
Designed by us.
Built by us.
Supported by us.
Almost every battery monitor app on the market is white-labelled software written by the factory's contract dev team. The TITAN App is different. Every line of code is written in-house in Cheltenham by our own engineers - the same people who designed the BMS it talks to. That's how it knows your battery this well.
Ready when you are.
Free, no in-app purchases, works with every TITAN battery built since 2024.
