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Test a battery

Digital multimeters

Measure open-circuit voltage accurately. Still not a capacity analyzer.

What this is for

These tools are chosen for the job described above, using maker specs where we can. Buy links are optional and never change a device’s battery answer.

Products

  • Fluke 101 Digital Multimeter

    Best suited to: Accurate open-circuit voltage and basic electrical checks

    Compact DMM for voltage and resistance per Fluke 101 documentation

    Limit: Voltage alone does not prove remaining capacity

    SpecsBuy on AmazonAmazon UK

  • Klein Tools MM400 Multimeter

    Best suited to: General DC voltage checks including battery terminals

    Auto-ranging DMM with common electrical functions

    Limit: Still not a battery capacity analyzer

    SpecsBuy on AmazonAmazon UK

  • AstroAI DM6000AR Digital Multimeter

    Best suited to: Budget auto-ranging voltage checks

    Common consumer auto-ranging DMM

    Limit: Prefer Fluke/Klein when safety category rating is critical

    SpecsBuy on AmazonAmazon UK

Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.

All equipment jobs · Digital tools