I asked #BingAI:
Can i charge my 48v 10Ah #eBike battery with a charger adapter that is 100-240v 50/60Hz 3.0A input, with power from a portable battery that is 220v 300W 60000mAh output?

It said:
Yes, you can charge ... eBike battery with a charger adapter that has an input of ... and getting power from a portable battery or power bank that has an output of ... However ... ensure that the power bank has a #VoltageConverter that can convert ... from 220v to 48v.

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