I’d not previously come across the fabulous phrase - ‘vampire drain.’ It describes the scenario when a car battery (or indeed any battery appliance) reduces in strength even when not being driven/used. The culprits apparently are all the electronics churning away in the background, eg items on standby mode, clocks, back ups etc.
I noticed it with our ‘new’ 2nd hand EV (Renault Zoe) where we seem to lose about 5% charge overnight, when unused. Apparently it can apply to many cars, but the loss of battery strength is all too apparent in an EV!
Has anyone come across any simple (I’m not a car/technical person!) means of reducing the vampire drain in an EV, or is this just one of those things you have to live with?