This may be old news to some, but the latest release of CaniOn (v141) has added the battery capacity parameter (Ah or Ampere-hours). Previously, this parameter had been available using the EvBatMon app or the iCarsoft i909 Scanner, in addition to Mitsubishi's professional MUT3.
On CaniOn, Ah shows up as a numeric on the (manually programmable) myTripTimer and myTripTimer2 screens or it has its own screen which shows the capacity over the last 5, 10, 20, 50, or 100 activations (selectable by tapping on the "last xx" on the Ah screen.
Recall, on CaniOn, the various screens can be enabled or disabled by tapping on the screen title and selecting "Settings"
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV