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How to choose a surge protector
We consider from different angles the issues of protecting household appliances from too high or low voltage
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How does a UPS differ from an inverter?
Which device to choose in case of emergency power outages — UPS or inverter?
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How to get through the winter: autonomous house
Autonomous sources of electricity, heat and hot water to comfortably get through the winter
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Common battery types
Pros and cons of common types of batteries