Will not charge
SOURCE: Inability to use black & decker pocket power to charge my laptop
You cannot charge the laptop via the USB port.
SOURCE: can I connect vacum cleaner big one with Black
The answer is NO. Your vacuum will draw close to 1200 Watts when you start it and you can write of the inverter being useful after that. You need at least a 1500W inverter for a vacuum. Depending on the Vacuum cleaner motor size that may still cause the inverter to auto shut down or blow the fuse during initial start.
Kelly
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