Bolt EV and Battery
My 130k mile car with the new battery 50k miles ago:
Battery screen shows 8 green bars (40%) Hill top reserve is around 88%
88%-40% = 48% of battery used today
Energy screen says I used 28.8 kWh driving 133 miles.
28.8 kWh / 48% = 60 kWh battery. I've done this a few times and it's been 59, my rounding error might get it to 60 today.
GOM is just how aggressive the last 50 miles were.
80mph = 2 mi/kWh = 160 mile range
60mph = 4 mi/kWh = 240 mile range
40mph = 6 mi/kWh = 360 mile range
Try to not go lower than 40 miles left. There is no reserve. No running on fumes.
Thanks! That's so good, I'll quote [Andy Oury's tweet here](https://twitter.com/2000Z28/status/1558218733230981122):
ReplyDelete> First, as a battery engineer, my goal is to make sure you never have to worry about your battery life. Real life is too busy to worry about battery life. Use your vehicle and charge it as it suits your needs. Bias towards what is convenient.
>
> That said, the more are five things we look at to make sure batteries last long:
>
> 1) Temperature: They like to be cold, unless you’re using them, in which case coolish-to-warmish, but not hot, is good.
> 2) Total throughput. Like any part of the vehicle they wear as you use them.
> 3) Calendar life. Like people, we/they wear down over time even if we aren’t doing anything. Basic chemical reactions (slowly!) degrade batteries.
> 4) Depth of charge “swing.” Full top to bottom charge cycles tend to wear a battery out more than smaller cycles.
> 5) Charge and discharge rate. Faster charge and discharge can stress battery particles.
>
> One thing you *don’t* have to worry about at all is battery “memory.” Li-ion batteries don’t have one. No need to fully charge or discharge them just to “reset” them.
>
> All that said… we (the engineers) know these effects, have models about how you (and probably people much more “battery abusive” than you) will use their EVs, and design the chemistry, electrodes, electrolyte, cells, modules, packs, and controls, so you don’t have to worry.
>
> I know we’re all used to cell phone batteries that crap out after a few years. But, your EV battery *is so much different and better* than your cell phone battery. We design them that way.
>
> I mean, do you really know anyone with an EV whose battery wore out (not defective battery, a *worn out* battery)? I don’t.
>
> Anyway, I hope that helps. Maybe you’ll be a little more comfortable now. You can try to “baby” your battery if you want to by keeping it cool and not really using it. But my advice is to go live your life. We’ve got you covered. You certainly shouldn’t hesitate to fully use it.
>
> \#IworkforGM