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Jason Hughes
Spent a little time RE'ing some recent Tesla BMS firmware. Some variables were tweaked to fit 108 cell groups (~450V pack). There is a packID that starts life set to ~109 kWh usable (400+ miles). Bunch of other tweaks suggest prep for new S/X/3 pack configs at some point. 🔋
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Nafnlaus Feb 19
Replying to @wk057
Interesting finding. Just a caution, though: Tesla knows that people RE firmware, and can insert red herrings at will.
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Jason Hughes Feb 19
Replying to @enn_nafnlaus
In the general firmware I agree, and they've done so. The low level module firmware (like the BMS) I've never seen this. So far everything they've done there has been used eventually... albeit sometimes years later.
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Marcel Montes Feb 19
Replying to @wk057
109 KWh usable translates to roughly 120 KWh battery pack 😍
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Jason Hughes Feb 19
Replying to @MarcelmontesM
More like 113-114, but still.
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green Feb 19
Replying to @wk057
some fun math: 100000/328 = 305Wh/mi 100000/351 = outlandish 284Wh/mi 109000/351 = 310 Wh/mi
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James Feb 19
Replying to @greentheonly @wk057
See I told you, just unpack more battery reserve.
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Matthew Rideout Feb 19
Replying to @wk057
I wonder if this is space gained in the existing packs when they ditch modules (Elon's been talking about ditching modules a bit lately).
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Gary Bleck 📎 Feb 19
Replying to @MatthewRideout @wk057
That was my first thought
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Teslavangelist YT Feb 19
Replying to @wk057
Musk has mentioned not using modules, just cells, so maybe they will get some extra space for more cells that way.
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Phrases.for.Sale シ Feb 20
Replying to @teslavangelist @wk057
^^^ this - 100%
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