Experience with 30W PD Charger?


I am looking for a way to keep my charger plugged in on my desk, but charge as slowly as possible, so that I can keep the battery cycles to a minimum and at the same time being able to conveniently unplug my charger and use it to charge something else without having my laptop shut down (which would be the case if I disconnected the battery).

How slowly does a 30W PD charger charge the laptop? I only use the laptop for web browsing and office work (Excel,Word) and the odd YouTube video here and there, so I am expecting 30W should be enough to at least not have the battery drain, but charge slowly instead.


I have used a MacBook Air charger while operating the screen and watching recorded video it does continue to charge, but slowly.
I believe this one is rated for 30 watts.

Going to a 45 watt Samsung charger showed a noticeable increase in charging speed while doing the same things.

With anything lower, it seems to trickle charge when off. Probably wouldn’t try to use anything lower than 25 Watts.
A 20 watt charger did boost the battery when the computer was shutdown, but it wasn’t fully charged even after 6 hours.