Green lighty, I likey!

The e208 is an amazing car, it charges so much quicker than a ZE50, even on a 50kWh unit!

For some reason I got an average of 20 - 30 kWh on the same charger with the Zoe

This is pulling a true 50kW/h from the same unit.

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Zoe is super picky when it comes to charging. You need a very warm battery and a very low level of charge remaining in the battery to get a high charge speed out of it. Even in those circumstances it will never get to the full 50kW however.

It’s a Zoe thing, not a charger issue though, don’t worry about that part.

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The units for charging are kW for power and kWh for energy. When you charge with an average of 40kW for an hour you get 40kWh.

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12.5kW delivered in 15 minutes indicates a charge rate of 50kW/h

Nope. Unfortunately not. Power (kW) is rate of energy transfer (kWh).

12.5 kW is 12500 watts

Delivered in ¼ of an hour

12.5 * 4 (50kW per hour)? Or 50000 watts per hour, Or am I missing something?

Kilowatts (kW) would be the measure of the power being supplied to your battery.

Kilowatt-hours (kWh) would be the amount of energy being used or stored.

So charging at a rate of 50kW for a hour would dispense 50kWh if that makes sense.

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Yes that was crystal clear, thanks for clearing it up 🤷🤔

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Ha! Very crudely think of it like speed (mph) and distance (miles).

Power is “like” speed. Watts is “energy (Joules) per second”.

That’s why it doesn’t make sense to say Watts per hour (kW/h). It’s like saying speed is “mph per hour”.

To use Kev’s example, the correct units would be:

12.5kW (power or “speed”) for 15 minutes = 50kWh (energy or “distance”)

My head hurts :rofl::rofl::see_no_evil::see_no_evil::see_no_evil::see_no_evil:

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12.5kW for 15 minutes is 25% * 12.5kWh = 3.125kWh. With Kev’s phrasing it would be 12.5kWh delivered in 15 minutes indicates an average charging power of 50kW.

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Oh god you’re right. That’s embarrassing. :blush:

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