12v BATTERY & ALTERNATOR TESTER
12v BATTERY & ALTERNATOR TESTER
12v BATTERY & ALTERNATOR TESTER
12v BATTERY & ALTERNATOR TESTER
12v BATTERY & ALTERNATOR TESTER

Battery And Alternator Tester

£8.99

Tax included

This battery and alternator tester checks voltage, battery and alternator condition and is suitable for all 12V DC systems. It features 6 LED indicators to verify the condition of the battery and to indicate high or low alternator output.

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Description How to Use Warranty

12v BATTERY & ALTERNATOR TESTER

The 12V Battery & Alternator Tester is an essential diagnostic tool designed for both DIY enthusiasts and professional mechanics. This compact device provides a quick and accurate assessment of your vehicle's electrical system, allowing you to ensure your battery and alternator are functioning optimally. With its user-friendly interface, you can easily check the voltage levels and condition of your battery and alternator, making it perfect for regular maintenance or troubleshooting. The tester is equipped with 6 LED indicators that clearly display the health of the battery, along with high or low alternator output status, helping you to prevent unexpected breakdowns and prolong the life of your vehicle's electrical components.

- 🔋 Easily verifies battery condition
- ⚡ Real-time alternator output readings
- ✅ Compact design for effortless storage and use

🔹 How to Use
Turn Off the Engine, Make sure your vehicle’s ignition is off before connecting the tester. This ensures accurate battery readings and safety.

Connect the Clips
Attach the black clip to the negative (–) terminal.
Touch the red probe to the battery's positive (+) terminal.

Read the LED Indicators
Once connected, the tester’s LED lights will show the battery condition:
Green: Battery is healthy
Amber: Consider recharging or replacing
Red: Likely needs replacement

Start the Engine to Check Alternator
With the clips still in position, start the engine. Look at the alternator indicators:
Red: Overcharging
Green: Charging correctly
Amber: Not charging enough (may indicate a fault)

We work hard to make sure Amtech tools are reliable as well as affordable. However, if you have a problem with any product, we want to get your job up and running again as quickly as possible.

All our hand tools are backed by a three year product replacement warranty and our power tools range are covered for up to two years.

So if something develops a fault within the specified warranty period, we’ll replace it, subject to proof of purchase.

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Is This the Right Tool for You

Is This Tool Right For You?

🔋 Perfect for DIY enthusiasts needing to check the health of their car battery and alternator without professional assistance.

🔍 Ideal for professional mechanics wanting a quick and reliable way to assess battery and alternator performance during vehicle diagnostics.

⚡ Helpful for maintaining various 12V DC systems in boats, motorcycles, or small equipment, ensuring they operate efficiently.

🔧 Great for anyone looking to troubleshoot electrical issues in their vehicles, helping to prevent potential breakdowns.

⚠️ Not suitable for testing batteries or alternators outside of 12V DC systems; if you need to test different voltages, another tool like a multimeter would be more appropriate.

⚠️ Limited to diagnostic functions; if you're seeking advanced features like detailed data logging or analysis, consider higher-end automotive diagnostic tools.

How This Tool Makes Your Job Easier

How This Tool Makes Your Job Easier

🔋 Quick and Easy Voltage Checking: This tester allows you to swiftly assess the voltage of your battery, saving you time and hassle during diagnostics. You'll know exactly where you stand with just a glance.

⚡ Reliable Condition Monitoring: With the six LED indicators, you can instantly see the health of your battery and alternator. This clear visual feedback lets you make informed decisions, reducing the risk of unexpected vehicle failures.

🔧 Universal Compatibility: Designed for all 12V DC systems, this tool is perfect for both DIY enthusiasts and professionals. You can use it on a wide variety of vehicles and applications, ensuring you always have the right tool for the job.

📊 Enhanced Performance Insights: By monitoring alternator output, you can ensure your vehicle's electrical system is functioning optimally. This helps you prevent issues before they escalate, keeping your projects running smoothly and efficiently.

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How We Compare

Feature ✅ Battery And Alternator Tester ❌ Other
Voltage Testing ✅ Accurately checks voltage levels in 12V DC systems to ensure optimal performance of your vehicle's electrical system. ❌ While capable of measuring voltage, it often lacks the specialised indicators and features necessary for thorough battery and alternator diagnostics.
Condition Indicators ✅ Equipped with 6 LED indicators that quickly and clearly illustrate battery health and alternator output levels, making it easy to understand the status at a glance. ❌ Usually only provides basic readings without visual indicators, leading to potential misinterpretations of the battery's true condition.
User-Friendly Design ✅ Designed with simplicity in mind, allowing DIY enthusiasts and professionals alike to operate the device intuitively without extensive technical knowledge. ❌ May require significant expertise to operate effectively, deterring casual users from conducting their own battery and alternator checks.
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Why Buy from Amtech?

🔧 Why Choose Amtech?

• Trusted Quality: Over 30 years of reliable performance.

• Everyday Practicality: Designed for real jobs – smart, durable, easy to use.

• Great Value: Professional results without the premium price tag.

• Ongoing Support: Straightforward warranties and UK-based after-care.

• 90-Day Free Returns: Just in case it’s not quite right for your project.

Frequently Asked Questions

You have questions, we have answers

What makes Amtech tools different from other brands?

Amtech stands out for its commitment to quality, affordability, and variety. We offer a wide range of high-quality, durable tools at budget-friendly prices, making us a go-to choice for both DIY enthusiasts and professionals.

How can I get assistance if I'm unsure which Amtech tool is right for my project?

Our customer service team is always ready to help. You can email us at support@amtechdiy.com or call on 0189 5435556. We can guide you in choosing the right tool for your specific project needs.

What’s your returns policy?

Somtimes a product might not be just right for your project, and that's why we offer 90-day free returns. Start a return from “My Account.” We’ll email a pre-paid Evri label—drop it at your nearest Evri point.

What warranty do you offer?

Rest assured, you're covered with our 3-Year No-Fuss Warranty on all Hand Tools, and a 2 Year No-Fuss Warranty on Power Tools. No registration needed - just keep your proof of purchase.



Can I buy Amtech locally?

Absolutely! We have thousands of great stockists acoss the UK - find your nearest one here.

Be sure to call ahead to check stock availability!

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