“Is there a way to charge the laptop with a portable charger? Mine does not recognize any of my cables (not come with this laptop). It only recognizes the ASUS dongle and the charger that come with it and so I have to plug into the wall.”
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Ok so let's address this head on. It helps to understand a tiny bit about USB C and the Power Delivery spec for USB3.1/3.2 etc. Basically there are a lot of modern USB chargers (mostly with USB-C connectors) that use the PD spec to essentially provide a number of different voltages to optimally charge different devices. The charger that comes with this charger is one of those and it is awesome! It can charge my Pixel XL and a few of my other USB-C devices. HOWEVER!!! This laptop must be charged at 45 watts (20v and 2.25amps I believe). The charger provides that voltage when plugged in as the highest level. If you have another charger it likely can't provide that exact combination. My Pixel XL's charger only does 18watts max, 9v at 2 amps. It'll charge my Nintendo Switch at a slower rate, but this laptop does not charge at all unless it gets the right voltage. I've been tempted to test it with some different chargers (including the Pixel XL charger) while the device is completely powered down so I can eliminate any drain on the battery and see if it can at least charge slowly at lower voltages but it seems like that wouldn't be a fairly pointless endeavor. If you can find a battery that puts out 45watts nominally it should work. Ideally one that puts out 20v at at least 2amps is your best bet. I haven't done my homework to find one like that. There are some that actually provide an "outlet" like you might find on a wall, that you could plug your OEM charger into. Since your charger would adjust that you might be fine but then you would also need to know that the battery us putting out as much as the charger needs for input.
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