EXBATT
    EXBATT
    Resistive load bank connected to a battery rack during a capacity test.
    Services / Battery Testing

    Testing that tells you what the battery will really do.

    Independent load-bank discharge and impedance testing on your standby batteries — not a data sheet, an actual measurement. Reports you can hand to auditors, operators, or the finance team deciding whether to replace.

    Short answer

    Battery testing establishes how much capacity a battery bank still has and how reliable it will be at the next discharge. EXBATT performs load bank capacity discharge testing, internal impedance and conductance measurement, connection and thermal inspection, and issues a condition report with per cell data, including testing carried out for other companies and their clients.

    Load-bank discharge testing.

    Controlled constant-current discharge to prove the actual delivered capacity of a battery string. Doubles as a stress test for cabling, breakers, and disconnects.

    Impedance and internal-resistance testing.

    Cell-by-cell measurements to catch weakening cells before they take the string down. Trended over time to plan replacements — not react to failures.

    Independent reporting.

    Every test produces a signed report: setup, procedure, measurements, pass/fail against the manufacturer's curve, and a recommendation. Use it for compliance, insurance, or a replacement business case.

    • —Compliance audits (ISO, telecom regulator)
    • —Insurance or warranty disputes
    • —Replacement business case
    • —Handover acceptance testing

    Frequently asked

    What is the difference between load bank and impedance testing?
    A load bank discharge measures real capacity against the manufacturer curve and is the only definitive answer. Impedance or conductance testing is fast, non invasive, and trends cell health between discharges, flagging weak cells early.
    How often should batteries be tested?
    Common practice is quarterly to half yearly impedance and visual checks, with a capacity discharge test at commissioning, then annually on critical installations or every two to three years on less critical ones, and always once capacity approaches 80 percent.
    When is a battery at end of life?
    By industry convention when measured capacity falls below 80 percent of rated capacity, because degradation accelerates from that point and the autonomy calculation no longer holds.

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