How Many EV Charging Stations Does the US Need to Replace Gas Stations?

Re:How Many EV Charging Stations Does the US Need to Replace... by Dylan16807 on Monday May 27, 2024 @04:19PM (#40494266)

Batteries don't care about cycle count, if "cycle" in this context is every time you switch between charging and discharging. They care about how many amps go in and out, along with disliking being too close to 0% or 100%.

Limiting max charge is easier if you have extra range, and so is staying away from empty. Making the battery hold more energy only improves things. Go ahead and charge every night.

If you see someone giving "cycle count" as a spec, they mean full cycles. If you charge 10% five times, that's half a full cycle.

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Re:How Many EV Charging Stations Does the US Need to Replace... by giantg2 on Monday May 27, 2024 @05:20PM (#40494840)

I know specs go by full cycles. I was always taught not to shallow charge because each partial charge essentially carried some overhead to it. Sort of like two 10% is not equal to one 20% charge. I guess that's not true anymore since I couldn't find anything on it.

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Re:How Many EV Charging Stations Does the US Need to Replace... by Dylan16807 on Monday May 27, 2024 @05:23PM (#40494866)

Keep in mind that the battery is doing an extra transition between charge and discharge every time regenerative breaking kicks in.

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Re:How Many EV Charging Stations Does the US Need to Replace... by giantg2 on Monday May 27, 2024 @09:42PM (#40496571)

Looks like maybe I was thinking of the lead acid battery "formatting" phase. Seems as though lead acid batteries benefit from deep cycles with full charges, while lithium batteries benefit from smaller depth of discharge without going to full.

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