Aslong as you're using a USB-C charging plug and cable from a reputable manufacturer, you can safely use your USB-C laptop charger to recharge your phone. The reverse won't always be possible though as not all USB-C charging plugs and cables designed specifically for phones support the higher wattages demanded by laptops. Whenyou charge your phone with your laptop, the charging cable transfers power from the laptop's power source to the phone. #2. The problem arises when the voltage and amperage of both devices do not match. For example, laptops typically have a current output of 19V and 0.62A compared to phones' average 5V and 1A output. Now if the circuit is a common 15 Amp circuit, and nothing else is plugged in along the line from the breaker box to the computers, then 15/1.7 = 8 chargers. IF you are in a modern building, and IF it is wired correctly, you will burn out a fuse or "pop" a breaker switch before you start an electrical fire. Thepower adapter for your computer is a 150W adapter, which is way too high compared to the power dissipated by any power bank or phone charger. The USB C port on your computer is only for High-speed data transfer and charging your phones. You can also refer to this HP Forums post which explains it further. Let me know if this helped. Chimney_83. Powersockets on planes are not all the same, and it's also important to check the type of port you can use before you fly, as you may need an adapter to run your laptop. Typical options include: AC Power. DC Power. EmPower. AC power should be OK with your regular plug. If your plane uses DC power or EmPower, you need an adapter. Therewas a USB phone charger plugged into another DC power outlet, with a smaller "power light" that also flashed on an off simultaneously, in parallel with the light on the AC adapter. Ever since, this AC adapter has not worked to charge the laptop battery, even when plugged into household AC current. Jix07Mp.

can you charge a laptop with phone charger