Safe power bank to use with 2021 M1 16” MacBook Pro.

Im trying to find a safe power bank to use with the 2021 16” M1 MacBook Pro.

I’m not sure to use my MagSafe cable or just a USB-c charging cable.

I tried using the power bank I use with my iPhone but it didn’t charge the MacBook.

It drained the power bank fast.

So I’m trying to find a safe an effective power bank I can use safely. At least 1 good full charge.

Just for back up.

Anybody have any suggestions or know of a Apple certified one compatible with the 14”-16” 2021 M1 MacBook Pro’s with the 140 watt MagSafe charging compatibility & safe to use.

What would be the best to use?

45W, 65W, 96W, 100W