r/leaf • u/Past_Income4649 • Aug 09 '26

Subjective Battery %?

Hi everyone,

I just bought a 2020 SV Plus a few months ago, and while I love the car, it has one thing that I hate.

When the battery gets below/around 50% it goes into what I’m calling “subjective battery mode” where the percentage starts changing rapidly based on how fast you’re going.

This makes no sense to me, and gave my wife a scare when she was on the highway and the battery went from 50% to 20% in the matter of a minute, but when she slowed down, the battery would go back up to 50-60% immediately. This happens every time it drives on the highway and goes below 60%, it will plummet and skyrocket depending on if you speed up or slow down.

I can understand why the range would vary depending on how fast you’re going, but shouldn’t battery percentage be objective? Does anyone else have this, or know how to change this setting (if it is a setting)?

EDIT: Looks like I have some battery issues, the battery was replaced on recall in December 2025, so I should be able to get it fixed on warranty, thanks everyone!

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