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  • Preparation before battery internal resistance test

    The battery charging and discharging tester under the UHV power company can help many power workers conduct various power tests more conveniently.

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    There are many types of battery internal resistance testing equipment, and their main difference lies in the type of battery being tested. The capacity and terminal voltage of the tested battery are different. Here we are talking about the preparation before battery testing for power, communication, and UPS power battery testing

    1. Fully charge the tester and check if it is working properly

    2. Prepare some necessary maintenance tools and protective tools, such as insulation and fixing protective tools

    3. Check the historical records of the test battery. Many units may not have this record. It is currently unclear when the battery was installed and put into use, but you must do some homework to figure it out.

    4. Prepare some adhesive labels and conditionally write the model, internal resistance value, test date, and label on them.

    5. Bring a thermometer to record the ambient temperature during the testing process. If you have a thermometer, please carry it with you

    6. Prepare a logbook to record some unexpected situations and the frequency of experience testing during the testing process: The cycle of battery degradation is actually measured in weeks, which means that the sudden change in battery performance is completed within 14 days. From this characteristic, we should conduct an internal resistance test once a week, but for the power and communication industries, this level of work intensity cannot be achieved. It is recommended to test at least once every quarter, and maintenance standards also require testing at least once a year. For important systems that do not allow power outages, I still recommend using an online detection system.

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