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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

Useful gadgets for programmers that increase efficiency
USB hub, widescreen monitor, comfortable chair and other useful gadgets for coders and IT industry workers

LiFePO4: answers to the most frequently asked questions
Mini-guide on how to operate, store, charge LiFePO4 batteries