Frequently Asked Question

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One of the most critical rules in UPS maintenance and safety is performing a regular battery test. Our software offers a scheduling function for this task. If batteries are not checked regularly following situations may happen:

• Battery capacity will decrease over time and reach a point where it cannot support the load long enough to shut it down. It might even render the UPS unusable.
• Continuous charging of faulty batteries may lead to leaks, swelling or even burning.

Basic Battery Test

The software is performing a 10 second test. Please note that the test only proves that the battery will hold the given load for 10s. Hence, the test will only determine if the battery is not depleted. We recommend the basic test at least once a month.

Real Life Test

Since the typical expected backup time is much longer than 10s, we recommend a real life test to ensure proper functionality of the UPS system.

Please cut off the input (i.e. by switching the input breaker or unplugging the input cable) and measure how long the UPS will hold the load. Knowing the load in Watts (you can read it in a monitoring software), you can compare it with the nominal performance. Feel free to contact our support system if you need an opinion. This will give you the best overview of the batteries' condition.

You can also monitor the backup time change over the life time. If it drops below your requirement, please change the batteries. We recommend to perform the real life test with the following schedule:

• At the very beginning of operation
• Every 6 months in the first 2 years
• Every 3 months after 2 years