If the battery is cold regen braking is limited. The line underneath your speedometer has dots at the left side.
The more dots the more limited your regen braking will be. This also means you don’t have full power, so you won’t be breaking any 0-60 records.
This tip is from Ride the Lightning episode 172 by Joe from New York and can be found at around 1:12:02 in the episode.
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