My Trimetric 2025 will show watts instead of amps, but I have not used that. I can't figure out where it would use Watt Hours instead of AH though.
http://www.bogartengineering.com/wp-content/uploads/docs/TM-2025%20Users%20Instructions062017.pdf?boxtype=pdf&g=false&s=false&s2=false&r=wideIt says the watts reading is to show "energy" I am lost on "energy" vs "power" as used in the various blurbs for batteries.
"The “amps” or “watts” display measures the rate of energy going in or out of your batteries so you can check your charging systems, and also to see how much energy each of your appliances use to help you conserve energy. "