Battery internal pics from a tradeshow ...
- Thread starter KiwiME
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Intriguing how they refer to the "BMS" as the "CMU" and additionally the "BMU , would love to read the info from those modules
Thanks for sharing. So it looks as if the actual battery is 64kWh rather than 67kWh I read in some forum.
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KiwiME
Well-Known Member
You can pick any number you like. One EV site says it's 67 but when I queried them by email it turns out they simply guessed at 5% over. Geez...
In the pic above it say 360 V, so at 180 Ah (Hyundai's number) that's 64.8
In the emergency response info it's quoted at 352.8 V so that's 63.5
In Hyundai's VIN info it says 356 V so that's 64.1
The bottom line is that it's entirely dependent on what voltage you pick as the average over the allowed operating range. Normally that's somewhere between 3.6 to 3.7 V per cell for Li-ion (there are 98 sets of three cells in parallel) so that's 352.8 to 362.6 V and 63.5 to 65.3 kWh.
It's unclear if 0-100% is actually 64 kWh and if the battery adapts to maintain range as health drops.
In the pic above it say 360 V, so at 180 Ah (Hyundai's number) that's 64.8
In the emergency response info it's quoted at 352.8 V so that's 63.5
In Hyundai's VIN info it says 356 V so that's 64.1
The bottom line is that it's entirely dependent on what voltage you pick as the average over the allowed operating range. Normally that's somewhere between 3.6 to 3.7 V per cell for Li-ion (there are 98 sets of three cells in parallel) so that's 352.8 to 362.6 V and 63.5 to 65.3 kWh.
It's unclear if 0-100% is actually 64 kWh and if the battery adapts to maintain range as health drops.
mikeselectricstuff
Active Member
Battery diagram from the service manual shows CMU and BMU inside - CMU looks like monitoring and balancing modules
mikeselectricstuff
Active Member
Another diagram
Good to see you Mike, welcome to the forum. I liked your review of the Zencar EVSE and have noticed some of your content on the U.K. forum (Speak EV)
I am interested to view the schematic of the VESS system (I assume you have access to the U.K. version of the service manual), also numbered diagram of the pin outs at the switch block if at all possible thanks
Edit: just read the VESS thread, thanks!
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