tchavei
Well-Known Member
- Joined
- Dec 3, 2022
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- Too many to list. Includes a MY23 Taycan RWD
Definitely yes. Now I wouldn't dare to extrapolate to his SoH because I don't know how that is measured (cell imbalance? charge provided vs kwh stored? No idea) but I can tell you that lithium batteries will increasingly go out of balance the faster they're charged and the faster they're discharged unless there's a mechanism that keeps them in check.Ah - so implying that if RTH's prior charging by almost entirely DC vs the other 2 cars entirely by AC that this might explain the chatter in his snapshot of the current SoC?
imagine a simple 2s pack (4.2V each, 8.4V nominal voltage). In an extreme case, you can have one cell at 4.0V while the other is at 4.4V... the total pack voltage would still be 8.4V but one cell would be at 70% of capacity while the other was over thermal runaway.
I already said this before, under 1C charging rate should be "ok" for battery life while over 1C is high speed charging and will naturally degrade the battery more but all that is assuming that the cells are all perfectly balanced among each other. Now how the balancing mechanism works in a Taycan and what behaviour we should adopt to have the cells balanced as much as possible... now that is an interesting question isn't it?
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