Can I safely use a 61W power adapter with my 16" 2019 MacBook Pro?

Laurah969 wrote:

Can I safely use a 61W power adapter with my 16" 2019 MacBook Pro? It came with my refurbished system, but it's not the adapter listed on the specs.

You can use it, yes.

Find the right power adapter and cable for your Mac notebook ...

https://support.apple.com/en-us/HT201700

Laurah969 wrote:

Could there be any negative issues that come from using a lesser wattage power adapter? Does it just take longer to get to full charge?

Why have two different adapters?

There is no harm— not ideal because as you recognize it is under powered (wattage.)

The 16" will charge more slowly.

I will add that under a a heavy load ( high demand ex external monitor(s)/eGPU etc) the Mac can freely borrow power from the battery if needed while connected to the mains, this even with the 96W charge that ships with the 16" MBP.

If this "refurbished" Mac came from Apple— I would call them and have them ship the correct charger to you.

Call Customer Support  (800) MY–APPLE (800–692–7753)

ref: https://www.apple.com/shop/refurbished