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Molto bello. Però il Comic Sans
There is no protection in the charger itself. When the laptop is fully charged, it'll draw less current and power itself from the DC input.
I you can't figure this out, you shouldn't be messing with mains woltage in the first place.
Make An Ultimate Helping Hand Jig
Convert A Computer Power supply to a Variable Bench Top Lab Power Supply
LED lamp for your workspace/ desktop/ table...
How to make cheap but very powerful LED bulbs
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