10 Best Car Battery Testers Battery Checker in The UK

Last updated on 04/08/2025

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TOPDON Car Battery Tester BT300P-A, 12V 24V Battery Tester with Printer, with Battery Test, Cranking Charging Test for 100-2000CCA Batteries, Carrying Bag, 3 Rolls of Printing Paper Included

20% OffFree Shipping

Why We Love It

Professional tester with printer.
Wider application and high precision.
Ensures extra-safe operation.

Main Highlights

PROFESSIONAL BATTERY TESTER WITH PRINTER: The BT300P is a must-have for any vehicle owner! This 12V & 24V car battery tester provides quick and accurate information about the health of your battery, as well as the charging condition and starter motor's cranking status. With its newly developed battery testing technology, you can rest assured that your batteries will always be at an optimum level.
WIDER APPLICATION: The BT300P is designed to work on a wide variety of 12V automotive lead-acid batteries, such as regular flooded, AGM flat plate, AGM spiral, Gel, and EFB. It also detects any potential starting or charging system issues in cars, motorcycles, trucks, RVs, ATVs, SUVs, boats, yachts, and even lawnmowers.
FAST & ACCURATE TEST RESULTS: With this modern car battery tester, you can identify the exact reason why your battery failed in just three seconds. Its results provide an accuracy of 99.5%.
USER-ORIENTED DESIGN: The 2.4-inch color screen of this battery load tester shows crystal-clear readings at all lighting conditions, and its intuitively placed buttons make it easy to navigate through menus. This user-oriented design creates a smooth experience and provides swift access to test results.
BUILT-IN THERMAL PRINTER: With the built-in thermal printer, you won't have to worry about running out of ink. No ribbons, cartridges, or other supplies are needed for its use. The only refillable supply you'll need is standard thermal paper to print your diagnostic receipts. Experience peace of mind with the BT300P's smart printing capabilities.

TOPDON Car Battery Tester BT200-A, 12V/24V Battery Tester 100-2000CCA, with Battery Cranking Charging Tests, for Cars Motorcycles Boats SUVs Trucks, for Both Professionals and DIYers

4% OffFree Shipping

Why We Love It

Versatile compatibility for convenience.
Quick battery health check.
Includes multilingual support.

Main Highlights

VERSATILE COMPATIBILITY: The TOPDON BT200 car battery tester is compatible with all 12V and 24V batteries 100 - 2000 CCA, including regular flooded, AGM flat plate, AGM spiral, gel, and deep cycle batteries, making it ideal for all types of vehicles, motorcycles, boats, and even golf carts.
QUICK BATTERY HEALTH CHECK: With the ability to test the overall health of your battery, cranking, and charging system, the BT200 battery tester provides instant results, saving you time and money from visiting the auto repair shop.
COLOR LCD SCREEN: Unlike other monochrome screens, the BT200 features a 2.4-inch color LCD screen that is easy to read in any lighting condition, including direct sunlight.
IDEAL FOR BOTH DIYERS AND PROS: The advanced conductance testing technology of the BT200 ensures accurate testing results in seconds, making it a valuable tool for automobile factories, garages, auto battery manufacturers, and DIYers.
SAFETY AND CONVENIENCE: With reverse polarity protection, the BT200 car battery tester guarantees user safety and vehicle battery protection.
MULTILINGUAL SUPPORT: Choose your preferred language from the BT200's eight language options. Coupled with the detailed user manual, hassle-free testing is just a few steps away.

Topdon Car Battery Tester 12V 24V Load Tester, BT200 100-2000CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System for Car Truck Motorcycle ATV SUV Boat Yacht

21% OffFree Shipping

Why We Love It

Versatile battery compatibility.
Comprehensive testing abilities.
Easy-to-read colour screen.

Main Highlights

【12V and 24V Car Battery Tester】 TOPDON BT200 Car Battery Tester works on all 12V and 24V batteries with 100 to 2000 CCA - For cars, motorbikes, trucks, motorcycles, off-road vehicles, SUVs, boats, yachts, lawnmowers.
【Cranking, Charging and Load Test】 With this digital battery tester you can check the total condition of the battery, including the starter, and perform a full system load test. With the start test, you can test and analyse the starter motor to see if it is working properly. During the charge test, the status of the charging system is checked to prevent damage to the battery due to overcharging or incomplete charging.
【2.4" Colour LCD screen】 Unlike most products on the market with a monochrome LCD screen, the TOPDON BT200 car battery tester has a 2.4" colour LCD screen, which is easy to read even in direct sunlight.
【A Must-have for DIYers and Professionals】 With advanced conductivity testing technology, TOPDON BT200 battery alternator analyzer can provide you with accurate test results in seconds. It fits in your glove box and is a handy tool for the automotive factory, garage, car battery manufacturer and DIY.
【What You Get】 Topdon BT200 car battery tester, user manual (French not guaranteed). TOPDON offers 30 days right of return, 24 months warranty and friendly customer service. If you have any questions or doubts, Topdon is always there for you.

MOTOPOWER MP0515A 12V Car Battery Tester Automotive 100-2000 CCA Battery Load Tester Auto Cranking and Charging System Test Scan Tool Digital Battery Alternator Analyzer

9% OffFree Shipping

Why We Love It

Quick and effective battery testing.
Monitors real-time output curve.
Offers multilingual support.

Main Highlights

A MUST TOOL IN YOUR GARAGE - With the up-to-date testing technology, it provides a quick reading to determine if a vehicle battery needs a jump or replacing and also the alternator output status. All you need to do is just connect and play. Save your time and bucks.
BATTERY HEALTH CHECK - Applied with the latest testing algorithm, the tester will scan the battery and get the results in seconds, including the State of Health, the State of Charge, the Internal Resistance and the Testing Conclusion (Poor, Good, Great). All types of 12V 100-2000CCA lead acid batteries can be tested, including Regular Flooded, AGM Flat Plate, AGM Spiral, GEL and EFB. The Battery Standards includes CCA, BCI, CA, MCA, JIS, DIN, SAE etc.
CRANKING AND CHARGING SYSTEM TEST - Test the alternator's starting voltage when cranking the engine to see if it's weak or in normal condition. Check the alternator's continuous output when the engine is running so as to see if the alternator provides proper power to the battery and the electrical system. You can view all the testing details in graphs on the screen, including all the slight ripples in milliseconds.
Real-time Wave View & Data Print - When you need to know more details about your battery or alternator performance when working, you may use the Wave view function to monitor the real-time output curve. It gives you all the detailed changes view of the output. The testing results can be stored and reviewed on the screen directly. To print the data, just connect the battery tester with the computer.
2.8" TFT Color Screen & 9 Language Supported - The 2.8" Full Color LCD screen (240*320 pixel) is eye-friendly and easy to read. Provides you a more comfortable visual experience at every inspection. 9 languages supported - English, Spanish, French, German, Italian, Russian, Portuguese, Chinese and Polish.

Alnicov Relay Tester Automotive With LED display 12V 24V Electronic Automotive Relay Tester Auto Car Diagnostic Battery Checker Tool

Free Shipping

Why We Love It

Clear display and user-friendly design.
Large capacity for uninterrupted use.
Handy for unlimited car inspections.

Main Highlights

The product adopts engineering design,simple appearance and clear display;Easy to use, flexible to carry
The product is equipped with two 18650 large capacity batteries, durable; Convenientfor continuous use without external power supply
Equipped with a set of charger, in low power, can be charged for unlimited use
Automobile relay that can detect 12V, 24V,four-pin, five-pin
The lighting design is not afraid of the dark, making it more convenient to detect car relays with just one click to turn them on

MOTOPOWER 12V Digital Battery Tester Voltmeter and Alternator Charging System Analyzer with LCD Display and LED Indication, Black Rubber Paint

35% OffFree Shipping

Why We Love It

Easy operation with quick readings.
Ensures safety with over-voltage protection.
High accuracy for precise results.

Main Highlights

Easy Operation - Connect and Go. It provides a quick reading to determine if a vehicle battery needs a jump or replacing and also the alternator output status. Various Colored LEDs indicate the battery or the alternator status.
Safety Ensured - Reverse-hookup and Over-voltage protection, making it safe and simple to use.
High Accuracy - With a Four-character lighted digital display, the voltage testing accuracy will be close to 0.01volt.
Testing Range - 4~20V DC. If the voltage is under 4volts, the screen will display - "LO"; If the voltage is above 20volts, the screen will display - "HI"
Rubber Paint Body to achieve the original quality - Black Rubber Paint on the body surface to achieve the best feeling. As the inventor and the manufacturer of the tester, we are keen on the details to ensure the brand quality and the good custome buying experience.
Daily Use - It's an economic and practical tool for daily inspection of the battery and charging system.

Ansmann 1900-0035 Button Cell Battery Tester with LED Display [Pack of 1] Coin Cell Battery Health Checker Ideal For Testing Alkaline and Lithium Batteries

Free Shipping

Why We Love It

Compact with intuitive LED display.
Automatically recognizes voltage levels.
Pocket-sized for easy usage.

Main Highlights

CAPACITY INDICATOR: This compact and handy battery tester is the ideal capacity checker for alkaline and Lithium coin cells. Easy to use, this coin tester has LED lights that display the capacity of the battery
AUTOMATIC RECOGNITION - The tester automatically detects the voltage (alkaline or lithium) by placing and pressing the button cell, and displays the voltage via the corresponding LED
PACK OF 1: This ANSMANN coin cell tester comes in a pack of 1 and measures 55x45x13.5mm and weighs 17g
LED DISPLAY: Capacity display via 5 LEDs, the current capacity of the cell is tested under load and indicated by the LEDs (red, orange, green). Including CR1620 button cell for the operation of the test device
EASY TO USE: This pocket-sized coin cell tester is simple and easy to use. Ideal for checking how full or empty cells are and checking precisely when batteries can still be used and when they must be replaced

Car Battery Tester 12V 24V Load Tester,KINGBOLEN BM550 PLUS 100-2000 CCA Charging Cranking System Tester, Accurate Voltage Waveform Digital Auto Battery Analyzer for Cars Trucks SUV Motorcycle

15% OffFree Shipping

Why We Love It

Works on various battery types.
Real-time voltage waveform monitor.
Protection against reverse connection.

Main Highlights

🥇【Upgrade BM550 PLUS Design】KINGBOLEN BM550 PLUS battery tester adopts advanced circuit design, It can test all 6v 12v 24v 100-2000 CCA car batteries, including Regular Flooded, AGM Flat Plate, AGM Spiral, GEL and EFB batteries. The HD color screen design can provide clear display effects when used in low light or at night.Real time vehicle Voltage Waveform detection battery analyzer for cars trucks SUV ATV boats motorcycles etc.(Deep cycle batteries are not supported)
🥇【Multifunctional 12v Battery Tester】KINGBOLEN BM550 PLUS car battery analyser can quickly and accurately display multiple data of car battery and the results based on the CCA standard. It can test the SOH (state of health) and SOC (state of charge) of the car battery, resistance test and voltage test, besides, it can also go to the load test, start-up test, ripple test and battery level de-reading.
🥇【Real-time Voltage Waveform Monitor】This compact car battery analyser can identify faulty car batteries. It can detect real-time changes in the car voltage waveform in a data graph. The measurement results (displaying the maximum, minimum and current voltage values) show you the voltage of the battery is normal and replaced. In addition, the data graph supports recording, storage and playback.
🥇【Protection Against Reverse Connection】 KINGBOLEN BM550 PLUS car battery tester is protected by reverse polarity. If you accidentally connect the two wires upside down, don't worry, the battery tester will not work at this time to prevent the internal circuit from burning out, which can well protect the long-term use of the device and the car battery.
🥇【Warm tips】1. The motor must be switched off for testing. 2. this device does not require a built-in battery. 3.If you test with a dead battery, please charge the battery. 4.If the text display flashes on the screen, it means that the battery terminals have not properly clamped the positive and negative terminals of the battery and are connected upside down, and the device will not work.

ANSMANN Car Battery Voltage Tester With LCD Indicator [Pack of 1] Voltmeter Voltage Checker For 12V and 24V Car Batteries

3% OffFree Shipping

Why We Love It

High compatibility with various vehicles.
Clear, easy-to-read LCD display.
Reliable and user-friendly design.

Main Highlights

HIGH COMPATIBILITY: This 12V & 24V car battery voltage tester is a handy device that tests the voltage of your car battery. The power check will monitor the alternator and charge controller
CLEAR DISPLAY: The clear LCD display, displays the output voltage of the car battery to within 0.1V. The bright, high-quality LCD display can be read in all lighting conditions
PACK OF 1: This ANSMANN power check 12-24V car battery tester comes in a pack of 1 and measures 32x32x185mm (LxWxH) and weighs 19g
EASY TO USE: This car battery tester is simple and easy to use, simply insert into the car cigarette lighter/12V adapter and within a few seconds the current measured output voltage will be display
RELIABLE: This reliable and cost-effective charger can recognize defective batteries at an early stage thus preventing further damage and finding a solution sooner

Sealey Ak500 Battery & Alternator Tester 12V - LCD Screen

37% OffFree Shipping

Why We Love It

LCD display assures battery condition.
Fits 12V DC auto systems.
Operates via vehicle power connection.

Main Highlights

Features:LCD display verifies the condition of battery and alternator output
Suitable for 12V DC systems and connects to vehicle via the vehicle accessory power socket
Fitted with 250mm cable and powered by connection to vehicle
Height: 220Width: 143Length: 73

8.7

Excellent

Save 37%

We scanned 1434 products

We reviewed these offers relevant to the Car Battery Testers Battery Checker within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like TOPDON, MOTOPOWER, Alnicov, Ansmann, KINGBOLEN, Sealey, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Car Battery Testers Battery Checker in the market, we considered we took a deep dive into 7171 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is TOPDON Car Battery Tester BT300P-A, 12V 24V Battery Tester with Printer, with Battery Test, Cranking Charging Test for 100-2000CCA Batteries, Carrying Bag, 3 Rolls of Printing Paper Included. We love many things about this product by TOPDON. What sets it apart from the competition is Professional tester with printer, Wider application and high precision, Ensures extra-safe operation.
The best value product for most shoppers and where user satisfaction is continuously the highest is TOPDON Car Battery Tester BT200-A, 12V/24V Battery Tester 100-2000CCA, with Battery Cranking Charging Tests, for Cars Motorcycles Boats SUVs Trucks, for Both Professionals and DIYers by TOPDON based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Car Battery Testers Battery Checker and the best cost-to-value ratio is Sealey Ak500 Battery & Alternator Tester 12V - LCD Screenat Sealey with a 37% discount.
Our list of the best Car Battery Testers Battery Checker is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Car Battery Testers Battery Checker in The UK

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We scanned 1434 products

We concluded that: