Will a Samsung wireless charging pad charge an S9+ with a Defender Otter case properly?

[Android Central Question]

it seems to only charge to 80% and shuts off...my a/c wall charger that came with the phone works fine

 

[Rukbat]

The last 20% isn't done quickly, it's probably going to take a while. (Leave the phone on the charger overnight, and see where it is when you wake up. Even a plain old 5 Volt [non-quick-charge] pad should charge it to 100%.)