Never Get Stranded by a Flat Battery Again. The Smart Car Battery Tester Halfords Doesn't Sell.
Fit-and-forget Bluetooth battery monitoring for cars, motorcycles, motorhomes, and boats. Get real-time health alerts directly to your phone.
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Loved Across Britain
ProBattery
£61.61 inc. VAT (£51.34 ex. VAT)
A fit-and-forget 12v battery monitor that tracks real-time health, cranking, and charging performance directly from your smartphone.
Bluetooth 5.3 App Alerts
Real-time voltage, cranking, and charging data sent straight to your phone.
Universal Compatibility
Works with 6V, 12V & 24V systems, plus Lead-Acid and Lithium batteries.
IP67 Waterproof
Rugged, weatherproof design ideal for boats, motorcycles, and outdoor use.
2-Year UK Warranty
Full manufacturer warranty with dedicated UK customer support.
Simple Fit-and-Forget Installation
- Clean your vehicle's battery terminals to ensure a good connection.
- Attach the red ring terminal to the positive (+) post and the black ring terminal to the negative (-) post.
- Secure the monitor unit in a safe location using the provided adhesive pad or zip ties, ensuring it is clear of moving engine parts or extreme heat sources.
- Download the free ProBattery app (iOS/Android) and turn on your phone's Bluetooth.
- Open the app, pair the device, and instantly view your battery's live voltage, cranking health, and charging status.
Trusted by Thousands of UK Drivers & Motorhome Owners
Driver Feedback
Brilliant bit of kit. I fitted this 12v battery monitor to my campervan's leisure battery. The app is really clear and it's great being able to see exactly what charge I have left without having to use a clunky multimeter.
Bought this after getting stranded twice last winter. The battery cranking test feature is fantastic-it actually warned me my battery was weak a week before it finally died, giving me time to replace it. Fast delivery too.
Very accurate car battery analyser. I use it on my classic MG which sits in the garage a lot. Only giving 4 stars because the Bluetooth range struggles a bit through thick garage walls, but works perfectly when I'm standing next to the car.
I was looking for a lithium battery monitor for my solar setup and this is perfect. Much better than the basic testers you find online. The app interface is modern and very responsive.
Fitted it to my motorcycle. The IP67 waterproof rating is genuine-it's survived several heavy downpours on the M6. Gives me great peace of mind knowing the charging system is working properly.
Good solid lead acid battery tester. Easy to fit the ring terminals. The app sometimes takes a few seconds to connect when I first open it, but the data is spot on once it syncs.
At ProBattery, we believe that a flat battery shouldn't ruin your day, your weekend getaway, or your business schedule. Born from the frustration of unpredictable cold-morning non-starts, we set out to create a smarter way for UK vehicle owners to monitor their battery health. Instead of relying on one-off manual tests when it's often too late, our smart monitors provide continuous, real-time insights directly to your smartphone.
Based in the UK, we understand the specific challenges our weather and seasonal vehicle usage place on batteries. Whether you are storing a classic car over winter, managing a motorhome's leisure battery, or ensuring your daily driver is ready for the morning commute, our technology gives you the confidence of knowing your battery's true condition.
Our flagship Bluetooth monitors combine advanced charging, cranking, and voltage testing into a single, IP67-waterproof unit. Designed for easy fit-and-forget installation across 6V, 12V, and 24V systems, ProBattery supports both lead-acid and lithium chemistries, ensuring comprehensive protection for cars, motorcycles, boats, and RVs. We are committed to proactive maintenance, helping you prevent breakdowns before they happen.
Why UK Customers Love Us
Our products are designed and supported in the UK, ensuring superior quality and fast tracked delivery from our British warehouse. We offer free UK delivery on all orders, eco-friendly packaging to reduce carbon footprint, and warm, direct customer service. Every order is backed by a generous 30-day returns policy under the UK Consumer Rights Act 2015 — you are always protected.
Frequently Asked Questions
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