MacBook Pro M1 Max - Incorrect AC Charger Information

Richard_babu wrote:

While charging with adapter, the system is charging as usual and icon shows its charging on system panel and there is no problem with charging.

How ever, I see "Connection - No" and "Charging - No" under System Report --> Hardware --> Power --> AC Charger Information.

I am trying to see some information wattage while charging.

https://discussions.apple.com/content/attachment/f812a727-373a-4a24-a54f-9c8125362b71

Have you shut down and restarted more than once and compared your results.

A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies

Login and test. Reboot as normal and test. Caches get rebuilt automatically.

No resolve—

ou can file a bug report / submit your Apple Feedback here: Product Feedback - Apple

Disconnect all other external devices in case one of them is providing a slight charge to the laptop which perhaps is not being noted by macOS. Perhaps your power adapter or charging cable is not actually working. I have seen some reports where some of these M-series Macs are not charging with the MagSafe3 charging cable due to bad Logic Boards (I have personally seen this occur with at least one of my organization's M-series Macs), so try using a USB-C charging cable instead to compare results.

Also, here are three similar but slightly different Apple articles for troubleshooting charging issues:

If your USB-C power adapter isn't charging your Mac laptop - Apple Support

If your MagSafe cable or power adapter isn't working – Apple Support (UK)

If your Mac battery won’t charge - Apple Support

Make sure to connect the charging cable directly to the laptop and definitely try using another USB-C port especially on the other side of the laptop if possible. Also, unplug the power adapter from the electrical outlet for a minute in order to reset the power adapter's internal circuitry.

Try running the Apple Diagnostics to see if any hardware issues are detected.