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Nobody understands the point of hybrid cars | Technology Connections [55:50] (www.youtube.com)

submitted 3 months ago by ProdigalFrog@slrpnk.net to c/mealtimevideos@lemmy.cafe

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[–] vk6flab@lemmy.radio 4 points 3 months ago (1 children)

Did you actually watch the video?

[–] UsernameHere@lemmy.world -4 points 3 months ago (1 children)

Yes

[–] Ghoelian@piefed.social 4 points 3 months ago (1 children)

So you've seen how the car will almost immediately use any charge over 40% and charges when it dips below 30%? (Iirc, watched the video last night and don't remember the exact numbers)

[–] UsernameHere@lemmy.world -3 points 3 months ago* (last edited 3 months ago)

Yep, on a battery with 1.9kWh. For reference the smallest EV battery I know of is 20kWh. So it has 10% the capacity of the smallest EV battery which means it will cycle between charged and charging very often.

The battery chemistry used in the car in the video is Nickel-Metal Hydride. Ni-MH batteries may have some defects, but what matters is that they discharge themselves. When the battery is not in use, it will slowly deplete its power. If the remaining battery time is long enough, the battery may be permanently damaged. A rough estimate of the depletion of NiMH batteries is that 20% of the battery power will be depleted within the first 24 hours after charging, and 10% will be depleted every 30 days thereafter.

It is expected that the charge/discharge cycle of a standard Ni-MH battery is 2000 times

Now consider the facts:

This battery will fully deplete when it is parked and this will lower the capacity
Because of how small it is, this battery will cycle multiple times per trip which will lower the capacity also
When the battery no longer holds enough charge to fulfill it’s purpose before the warranty has even expired the cost of replacement will not be covered because it is considered normal for them to fail so soon. So the owner will have to pay.