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Li-Ion or LiFePO4: What’s best for charging station and UPS?
Understand the strengths and weaknesses of lithium batteries used in charging stations and UPS

How to choose UPS
Methods for choosing UPS for boiler, computer, refrigerator and other equipment

How to get through the winter: autonomous house
Autonomous sources of electricity, heat and hot water to comfortably get through the winter

How to calculate the battery life of home and computer equipment
How long will a conditional computer or refrigerator last from the UPS during power outages?