Wiring a BMS into a pack so it can actually do its job.
Sense wiring and isolation
One broken sense lead disables balancing for the whole string.
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Contactor control and pre-charge
The BMS decides when to close the contactor; the pre-charge decides whether it survives.
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LiFePO4 questions
Short answers to the ones that come up most.
What makes LiFePO4 different?
Lower energy density than NMC, far better stability and cycle life.
How long does a pack last?
4,000–6,000 cycles at 80% DOD.
Charge in the cold?
Not below 0°C without heating.
Maintenance?
Terminals, ventilation, BMS log.
Safe?
The safest lithium chemistry in wide use.
