There is the LeafSpy app for Nissan Leaf owners that lets you monitor and log (to DropBox) several battery parameters. Unfortunately Nissan removed the 80% cha

There is the LeafSpy app for Nissan Leaf owners that lets you monitor and log (to DropBox) several battery parameters. Unfortunately Nissan removed the 80% charge timer in newer models, so you have to estimate charge time if you don't want to hit 100%. That being said, you do want to charge to 100% periodically so the cells can be equalized. You can see this happening if your EVSE can log current.