I had like to understand the recommended BMS configuration at the architecture level for both my current and future battery configurations.
1. 2S build
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Cell monitoring
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Passive cell balancing
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Battery protection
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SOC / SOH estimation
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Battery current measurement
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Pack/cell voltage measurement
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Battery charging
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Temperature monitoring
2. 7S build(future scalable)
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Same functional requirements as above
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Preferably using an architecture that can scale from 2S to 7S with minimum changes to the overall system
It would be particularly helpful if you could provide, for each configuration:
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Recommended cell-monitor/BMS IC
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Recommended protection IC
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Recommended charger IC
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Recommended current/voltage measurement approach
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Recommended SOC/SOH approach
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Recommended cell-balancing method and typical balancing current
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Whether you would use internal or external balancing FETs/resistors
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Any additional ICs/components you would normally consider essential
I’m mainly looking for a practical, industry-proven architecture rather than just a list of ICs. It would also be useful to know whether you would recommend one common architecture that can cover both 2S and 7S, or separate optimized configurations for each.