I didn't in the actual math. I just wrote with the slash to make it easier to read than wattsecond. You'll see I did do 1 watt * 1 second. Please stop being so

I didn't in the actual math. I just wrote with the slash to make it easier to read than wattsecond. You'll see I did do 1 watt * 1 second. Please stop being so pedantic. I edited it for you though. Either way, I (and most other humans) will probably continue to use watthours instead of joules for most things, as most people will probably agree 5W for 3 hours makes more sense as 15Wh instead of 54kJ. Joules are too small a measurement for a lot of practical applications. Needing to multiply by 60 or 3600 to get to minutes and hours gets frustrating.