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12/16 build, 2017, white LT
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It must not be linear. I get an average of 4 miles/kwh and my 87% charge range is ~207 miles in my new 2021 Bolt.
It means you have ~59.5 kWh usable, like lots of others with the "66 kWh" pack.

Ask @Telek what is going on with these packs.
 

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12/16 build, 2017, white LT
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Lots of others? I can't seem to find any examples of others with this issue. Can you link some examples?

EDIT: This is interesting, but it's not 59.5 kwh which is quite a bit less than advertised for a 2021.

I will try the simple math proposed in that article using the infotainment's measure of spent kwh and difference in percentage from MyChevrolet app.
From my reading of folk's posts, it appears that either the "66 kWh" packs are not 10% more capacity than the 2017-2018 packs, or the algorithms GM is using to estimate Ah, kWh, and GOM are screwed up.

I suggest you load Torque Pro, and @Telek 's PIDs, if you are concerned.



[edit] Or worse, GM's battery problems are not limited to Korean, old chemistry packs.
 

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12/16 build, 2017, white LT
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11,139 Posts
Capacity calculation comes out to 64.5 kWh.
PID says 187.54 Ah and 60.01 kWh capacity.
!Battery - Pack - Capacity kWh estimated 2019+,Bat Cap Est,2245F9,((A*256)+B)*0.0032,30,70,kWh,7E4

Corrected for your results would be:

!Battery - Pack - Capacity kWh estimated 2019+,Bat Cap Est,2245F9,((A*256)+B)*0.00344,30,70,kWh,7E4
 
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