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Protect your business's uninterruptible power supply with our expert engineering team.

Accumulators are vital energy storage units that ensure the uninterrupted operation of UPS systems, generators, emergency lighting circuits, and critical safety equipment. Accumulator checks are a legal and technical requirement to guarantee that this critical equipment can be reliably activated when needed. At AES Innovation, we provide accumulator check services by our authorized engineers, ensuring energy security and legal compliance for businesses in Izmir and the Aegean Region.


The periodic inspection interval for accumulators is determined as a maximum of once a year by the Regulation on Health and Safety Conditions in the Use of Work Equipment, which is based on the Occupational Health and Safety Law No. 6331. Unless otherwise specified in the relevant standards (TS 1352 – Acceptance tests and inspections of batteries), periodic inspection of accumulator installations is mandatory.

Insurance companies will refuse to pay compensation for failures in accumulators that have not undergone periodic inspections or have been found to have critical deficiencies. In facilities requiring uninterrupted power, such as hospitals, data centers, telecommunication stations, cold chain warehouses, and emergency response centers, accumulator failures can lead to the disruption of critical processes and irreparable losses.

Accumulator Periodic Inspection Period and Legal Requirements

How to Perform Accumulator Checks: Comprehensive Test Protocol

The answer to the question of how to perform accumulator checks is a systematic protocol that includes visual inspection, electrical tests, and capacity tests. Professional inspection is carried out in accordance with the TS 1352 standard and the manufacturer's specifications.

Visual Inspection and Physical Examination

In the first stage, the physical condition of the accumulator bank is examined in detail. The integrity of the battery case and cover, terminals and connectors, corrosion and sulfation status, electrolyte level (in open-type batteries), leakage and seepage checks, swelling and deformation, cable connections and terminals, ventilation system, floor insulation, and fire safety measures are checked. Hot spot analysis is performed using a thermal camera to identify overheating cells and connections.
Areas containing accumulators are high-risk fire zones, and workers may be exposed to occupational accidents and diseases if they work without taking the necessary precautions. Therefore, during visual inspection, safety signaling, adequate ventilation, acid/alkali neutralization materials, and the presence of emergency response equipment are also checked.

Electrical Tests and Measurements

Battery periodic electrical checks include measurements that verify the performance and safety of the accumulator. Voltage measurement checks that each cell and the total bank voltage conform to the nominal values; the open-circuit voltage should be in the range of 12.6-12.8V for 12V batteries. Charging voltage measurement verifies that the charger is providing the correct voltage and current; a float charging voltage of 13.8-14.4V is the standard value for lead-acid batteries.
İç direnç ölçümü, akümülatörün sağlık durumunu belirleyen kritik bir parametredir. İç direnç testi, özel konduktans test cihazı veya mikro-ohmmetre ile yapılır ve referans değerlerle karşılaştırılır. İç direncin artması, akünün yaşlandığını ve kapasite kaybı yaşadığını gösterir. Tipik olarak, iç direncin yeni akünün %50’si kadar artması, akünün değiştirilmesi gerektiğine işaret eder.

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Ensure your batteries are ready when you need them!

Accumulator checks, ...ensuring uninterrupted power supply security for your business and critical systems. continuity And legal compliance It is a vital process that ensures proper hygiene. Don't take risks, get your periodic checkups done. official Leave it to the professionals! AES Innovation‘Our expert engineering team is here to support you with standard-compliant test protocols and annual maintenance contracts.

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Accumulator Inspection by Qualified Engineers: Guaranteed Reliability

Accumulator inspection by our authorized engineers demonstrates that the technical competence of the inspection body, the expertise of its personnel, and the calibration of its testing equipment have been independently verified according to the TS EN ISO/IEC 17020 standard. Type A inspection body competence guarantees the reliability and legal validity of the inspection results.
Reports prepared by unauthorized individuals are not accepted in Ministry of Labor inspections, supplier audits, licensing processes, and insurance claim applications. During the independent audit process, the quality management system, technical procedures, personnel training records, calibration status of measuring instruments, and report archiving system of the inspection organization are examined in detail.

Frequently Asked Questions

Contact us today for accumulator inspection, capacity testing, thermal analysis, and detailed reporting services. Ensure the reliability of your UPS, generator, and emergency power systems, and prevent sudden failures and power losses!

According to the Regulation on Health and Safety Conditions in the Use of Work Equipment, accumulators must undergo periodic inspection at least once a year. This period applies unless otherwise specified in the relevant standards (TS 1352). For UPS batteries used in critical operations, a 6-month inspection period is recommended.

Accumulator inspections are a comprehensive protocol including visual inspection, electrical tests, and capacity tests. The visual inspection examines the battery casing, terminals, electrolyte level, and connections. Electrical tests measure voltage, internal resistance, and the charging system. The capacity test determines the battery's actual energy storage capacity. A thermal camera is used for hot spot analysis, and all results are documented in a detailed report.

Yes, accumulator inspections are a legal requirement under Law No. 6331 on Occupational Health and Safety. According to the Work Equipment Regulation, accumulator installations must undergo periodic inspections at least once a year, and the relevant report must be submitted to the relevant authority. In cases of malfunctions occurring in accumulators that have not undergone periodic inspections, insurance compensation will not be paid, and administrative fines will be imposed during inspections by the Ministry of Labor.

Accumulator inspections conducted by our authorized engineers demonstrate that the technical competence of the inspection body and the reliability of the test results are verified according to the TS EN ISO/IEC 17020 standard. Reports issued without authorization are not accepted in official audits, supplier audits, licensing processes, and insurance applications. Type A inspection body competence guarantees the legal validity of the inspection results.

Akümülatör kapasite testi, akünün tam şarj edilmesinin ardından belirli deşarj akımı ile tamamen boşaltılması ve bu sürecin izlenmesi ile gerçekleştirilir. Test, akünün nominal kapasitesinin kaç saatte ne kadar akım verebildiğini ölçer. Örneğin, C10 deşarj hızında (10 saatte deşarj) test yapılır ve gerçek kapasitenin nominal kapasiteye oranı hesaplanır. %80’in altındaki kapasite, akünün değiştirilmesi gerektiğini işaret eder.