Best AGM Car Battery Testers of 2025

The TOPDON BT200 Tester is a versatile tool compatible with 12V and 24V batteries, making it suitable for various vehicles, including cars, motorcycles, and boats. You can quickly check your battery's health, cranking, and charging systems, providing you with instant results that save you time and money. The 2.4-inch colour LCD screen ensures easy readability in any lighting, allowing you to use it confidently outdoors. This tester is designed for both professionals and DIYers, ensuring accurate results in seconds.

The MOTOPOWER MP0515A Tester is an essential tool for any garage. It quickly assesses whether your vehicle's battery requires a jump or replacement, saving you both time and money. With its advanced testing algorithm, you can easily check the battery's health, charge state, and internal resistance in mere seconds. Additionally, it tests the cranking and charging systems, ensuring your alternator is functioning properly. The user-friendly 2.8" TFT colour screen displays results clearly, making it simple for you to understand your battery's condition.

The MMOBIEL Battery Tester provides comprehensive battery testing, allowing you to easily check the health and state of charge of your car battery. You can perform accurate Cold Cranking Amps measurements, helping you identify starting issues before they become a problem. Additionally, the tester assesses the efficiency of your alternator, ensuring your battery charges effectively. With the convenient data review feature, you can easily track and compare your battery's performance over time, giving you peace of mind about your vehicle's reliability.

The DonosHome Battery Tester is a professional tool designed for all 5-36V batteries, including various types like AGM and gel batteries. It allows you to conduct essential tests on your vehicle's start and charging system, ensuring optimal performance. With its advanced technology, you can quickly obtain accurate readings of your battery's health and capacity. The device features an easy-to-read 3.2-inch colour screen, making it user-friendly. You can confidently rely on this tester for precise results and efficient troubleshooting.

The KAIWEETS KVB01 Tester is a versatile device that works on all 12V and 24V batteries, including various types such as lead-acid and AGM. It offers four essential testing functions to evaluate battery health, cranking, charging, and loading, giving you quick and reliable results. With its precise accuracy within ±2%, you can trust the readings to help avoid battery failures. Additionally, it operates without internal batteries, making it convenient as it powers on immediately when connected.

The TOPDON BT300P Tester is an essential tool for vehicle owners, delivering swift and precise insights into your battery's health and performance. It supports a variety of 12V and 24V automotive batteries, ensuring compatibility with numerous vehicles. In just three seconds, you can diagnose battery failures with an impressive accuracy of 99.5%. The user-friendly design features a clear 2.4-inch colour screen, making it easy for you to read results in any lighting. Additionally, the built-in thermal printer allows you to conveniently print diagnostic receipts without the hassle of ink refills.

The OBDMONSTER Battery Tester is a versatile device designed to assess the health of your car's battery and alternator. You can easily check the alternator's status by revving your engine to 2000 rpm, ensuring the charging circuit is functioning well. The tester also indicates the battery's charge percentage, helping you monitor its condition efficiently. Additionally, you can confirm when charging is complete, as indicated by a green light. This user-friendly tool makes battery maintenance straightforward and reliable.

The TOPDON BT600 Tester offers a professional solution for diagnosing 12V and 24V lead-acid batteries with impressive accuracy. You can easily read results on the vibrant 3.5" colour screen, making troubleshooting straightforward. This versatile tool works with various battery types and ratings, ensuring compatibility with your vehicle. Additionally, the built-in printer allows you to receive immediate reports for your records, streamlining your testing process and enhancing efficiency.

The KINGBOLEN BM550 Tester is a versatile device designed for testing 6V, 12V, and 24V car batteries ranging from 100 to 2000 CCA. It features a user-friendly plug-and-play design, allowing you to easily connect it to your battery, whether it's installed in the car or not. The tester provides quick and accurate readings of your battery's state of health (SOH) and state of charge (SOC), helping you monitor its condition. Plus, its 1.8-inch HD screen clearly displays essential data, making it convenient for you to assess your battery's status swiftly.

The DonosHome DH310 Battery Tester is a versatile tool designed for a range of vehicles, including cars and motorcycles. Its advanced conductance testing technology allows you to accurately measure essential metrics like Cold Cranking Amps and battery health. With a user-friendly 1.82-inch colour LCD screen, you can easily view results at a glance. The device is built for stability, featuring high-quality clips and copper wire for reliable testing, and it even saves your previous results, making it convenient for repeated use.