3 ms·
> ”I kinda wish my EV would just set the apparent 0% and 100% points at a level that guaranteed X cycles, where X corresponds to perhaps 200K miles.” They alre
by Reason077 3y ago
> ”I kinda wish my EV would just set the apparent 0% and 100% points at a level that guaranteed X cycles, where X corresponds to perhaps 200K miles.”
They already do! In most EVs, 0% is not really zero: you can typically drive another 20-40 miles before it finally dies.
Most EVs will easily have a battery life of 200K miles, with some capacity degradation. Active battery management such as limiting the max charge is more about preserving the battery life beyond this, and reducing degradation.
And all of this becomes less necessary with LFP battery chemistry, which is leas fussy about charge levels and less susceptible to degradation.
- Gigachad 3y agoWhat happens if you actually do fully drain an EV on the road? How do you recover from that situation? Normally you’d just have to get a container of fuel delivered to you.
- Reason077 3y agoMost likely you get towed to the nearest charger on a flat-bed truck. But portable chargers (with batteries or diesel generators) on the back of trucks or vans also exist. Some EVs also support power output (V2x) from their charge ports, allowing you to charge up one vehicle from another.
- numpad0 3y agoWhat exactly is the reason the car shouldn't be towed for regen? It seems a dead EV can just be towed to the midpoint between origin and the nearest charging station, then can be driven to the station using regen'd charge.
- Reason077 3y agoIf the EV is truly dead then you may not even be able to put it in Drive mode until it’s plugged in, so regen wouldn’t be possible. But sure, assuming you have enough power to put it in drive, there’s no reason that you can’t do this. There’s YouTube videos where people have tried it successfully. My understanding is that manufacturers don’t support or recommend this method, though.