i disconnect, or flip the switch, one or the other. (mostly d/c)
my switch is under my rack so its nicely hidden.
never leave power on.
i don't leave the batteries on the bike @ work either - they're brought inside to charge.
My habit is -
get off the bike.
disconnect power to the controller.
(so i don't try and charge while its connected)
Bike / Motor:
Electric specalized rock hopper with Crystalyte 504 / 26"
Yesa 72v (36v*2) (getting 6.7ah) LiFEPO4 in a Topeak bag. OR 1x eMTB 48v 20ah pack (straps to frame) -depending on range requirements.
Unmodified 48a digital with 4110 Fets
Bike is in parts getting painted / drying / testing replacement BMS
Trail of Dead Parts:
Avanti Frame, 408 motor *melted*, 35a controller - i broke by trying to mod it 2nd controller - blew it up.