Charging from 0% with the OEM charger takes a little over an hour. Make sure you have at least a 45W PD AC adapter and a good cable. I saw only about 28W going into the charger for one battery, so less than what a 3A cable will deliver. I did not track and integrate power in the computer. It's possible that some data cables don't supply enough current.
I also tested charging with a few PD power banks and some worked better than others. One rated 45W don't work and entered a continual power on/off cycle. Another 65W PD power bank delivered a full charge from 0% with 60% left.
Check whatever you would use ahead of time.
EBH
Jun 26, 2026 at 10:06 PM
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