Mar‑Pol M82520 12‑24 V Battery/Automotive Battery Tester

The Mar‑Pol M82520 is a digital battery tester designed for automotive and commercial vehicle applications. It supports 12 V and 24 V battery systems and measures key battery parameters such as voltage, internal resistance, start current, capacity and battery health (SOH/SOC). It’s compatible with a wide range of battery types including lead‑acid, AGM, gel and EFB. :contentReference[oaicite:1]{index=1}

Key Features

• Dual system voltage support: Works with 12 V and 24 V battery systems. :contentReference[oaicite:2]{index=2}
• Wide battery capacity range: Tests batteries in the capacity range approx. 2 Ah to 220 Ah (or marketed 3‑200 Ah) depending on conditions. :contentReference[oaicite:3]{index=3}
• Comprehensive battery health metrics: Measures and displays SOC (state of charge), SOH (state of health), CCA (cold cranking amps) and IR (internal resistance). :contentReference[oaicite:4]{index=4}
• Compatible with multiple battery types: Acid/lead‑acid, AGM flat/spiral, gel, EFB. :contentReference[oaicite:5]{index=5}
• User friendly display: LCD display (some models with back‑light) to show results clearly. :contentReference[oaicite:6]{index=6}
• Durable construction: Housed in acid‑resistant ABS plastic shell. Operating temperature: 0 °C to 50 °C; storage: –20 °C to 70 °C. :contentReference[oaicite:7]{index=7}

Specifications (Selected)

• Model / Type: M82520. :contentReference[oaicite:8]{index=8}
• Voltage measurement range: 8 – 30 V DC (for the test engine). :contentReference[oaicite:9]{index=9}
• Battery capacity tested: 2‑220 Ah nominal (test interface 3‑200 Ah). :contentReference[oaicite:10]{index=10}
• Supported voltage systems: 12 V and 24 V. :contentReference[oaicite:11]{index=11}
• Operating temperature: 0 °C to 50 °C. Storage temperature: –20 °C to 70 °C. :contentReference[oaicite:12]{index=12}
• Material: Acid‑resistant ABS plastic. :contentReference[oaicite:13]{index=13}

Why Choose the M82520?

• Provides a practical and relatively affordable solution for testing vehicle batteries in both 12 V and 24 V systems—ideal for passenger cars, trucks or machinery.
• Gives more than just a voltage check: you get internal resistance, charge state, health state and start capability information.
• Good compatibility across battery types (lead‑acid, AGM, gel, EFB) means flexibility in workshop or garage use.

Considerations

• While it gives useful indicators (SOH, SOC, etc.), for very precise diagnostics or professional calibration you may require a higher‑end branded tester with certified standards.
• The test range while broad (2‑220 Ah) may still have limitations for very large industrial battery banks—always check your application.
• Ensure you make correct connections and follow safety guidelines when working with high‑current/discharged batteries and when testing in 24 V systems.

Keywords

Mar‑Pol M82520, battery tester 12V/24V, automotive battery tester, AGM gel EFB battery tester, SOC SOH battery test, internal resistance battery tester