Measuring battery current with precision
Keywords: battery current measurement SLA battery power backup
[Summary of tips] When power fails, many home and commercial alarm systems go to a backup battery, most commonly a 12-volt sealed lead-acid type. If you're able to accurately sense the current draw, and the battery is well-characterised, you'll be able to accurately determine the amount of time remaining before your mission-critical system dies.......|
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Strange modes of transport and other "stuff"
Someone just pointed me at a YouTube video that claims to show the world's first e-powered multicopter flight...















