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- Input voltage and current

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12-22-2018 06:46 AM
Product: HP Pavilion Gaming Laptop 15-cx0xxx
Operating System: Microsoft Windows 10 (64-bit)
Dear,
I would like to make an external battery for my computer but I don't know what current I need. My charger supplies 19.5 V and 7.7 A, but it is capable of fast charging. Does my device need the 7.7 Amps to work or can I eventually go a bit lower?

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