assembly: "power"
description: "Main power system and battery management"
components:
  - id: "molicel_p42a_cells"
    part_number: "P42A"
    description: "Molicel P42A 21700 lithium-ion cells"
    category: "battery_cells"
    quantity: 52
    unit_cost: 4.50
    currency: "EUR"
    status: "active"
    criticality: "essential"
    suppliers:
      - name: "Battery specialists"
        notes: "Various 21700 battery suppliers"
      - name: "Molicel authorized distributors"
        verified: true
    specifications:
      cell_type: "21700 Li-ion"
      capacity: "4200 mAh (4.2 Ah)"
      nominal_voltage: "3.7V"
      max_voltage: "4.2V"
      min_voltage: "3.2V"
      max_continuous_discharge: "45A"
      max_continuous_charge: "8A"
      chemistry: "NMC (Nickel Manganese Cobalt)"
    configuration:
      series: 13
      parallel: 4
      total_cells: 52
      pack_nominal_voltage: "48V"
      pack_capacity: "16.8Ah"
      pack_energy: "808Wh"
      max_discharge_current: "180A"
      max_charge_current: "32A"
    voltage_limits:
      pack_minimum: "41.6V (13 * 3.2V)"
      pack_maximum: "54.6V (13 * 4.2V)"
      bms_cutoff: "39.0V (13 * 3.0V)"
    notes: "Main traction battery pack in 13S4P configuration"

  - id: "jiabaida_bms_100a"
    part_number: "JBD-SP22S003B"
    description: "Jiabaida Smart BMS 100A with Bluetooth and UART"
    category: "bms"
    quantity: 1
    unit_cost: 85.00
    currency: "EUR"
    status: "active"
    criticality: "essential"
    suppliers:
      - name: "AliExpress"
        url: "https://es.aliexpress.com/item/1005007223779359.html"
        verified: true
      - name: "Jiabaida Direct"
        url: "https://jiabaida-bms.com/"
        verified: true
    specifications:
      max_current: "100A"
      cell_support: "6S-21S (NMC)"
      communication: "Bluetooth, UART"
      balancing: "Active cell balancing"
      protections: "Overvoltage, undervoltage, overcurrent, temperature"
      operating_temperature: "-20°C to +60°C"
    documentation:
      wiring_diagram: "https://jiabaida-bms.com/blogs/content/jiabaida-sp22s003b-smart-bms-wiring-diagram"
      notion_docs: "https://www.notion.so/BMS-Bater-a-Kart-JBD-16078747314380e68688c3ab787fc1f7"
    notes: "Smart BMS with mobile app monitoring and protection features"

  - id: "car_battery_12v"
    part_number: "12V-CAR-BATTERY"
    description: "12V automotive battery for sensors"
    category: "auxiliary_battery"
    quantity: 1
    unit_cost: 60.00
    currency: "EUR"
    status: "active"
    criticality: "essential"
    suppliers:
      - name: "Automotive parts stores"
        notes: "Standard car battery suppliers"
    specifications:
      voltage: "12V"
      type: "Lead-acid automotive"
      capacity: "TBD Ah"
      application: "Sensor power supply"
      compatibility: "Formula Student car compatible"
    notes: "Separate 12V supply for sensors to maintain Formula Student compatibility"

  - id: "battery_pack_assembly"
    part_number: "CUSTOM-PACK-13S4P"
    description: "Custom 13S4P battery pack assembly"
    category: "mechanical"
    quantity: 1
    unit_cost: 150.00
    currency: "EUR"
    status: "active"
    criticality: "essential"
    suppliers:
      - name: "Custom battery pack builder"
        notes: "Professional battery pack assembly service"
    specifications:
      configuration: "13S4P"
      total_cells: 52
      interconnects: "Nickel strips"
      insulation: "Kapton tape, heat shrink"
      housing: "Custom enclosure"
      cooling: "Passive air cooling"
      safety_features: "Fusing, thermal management"
    included_components:
      - "52x Molicel P42A cells"
      - "Nickel strip interconnects"
      - "Insulation materials"
      - "Protective housing"
      - "Cell level fusing"
    charging_tutorial: "https://youtu.be/g1jsSbjsiTo?si=uZ7mVjXA2c-43zzz"
    notes: "Professional assembly recommended due to safety requirements"

pack_specifications:
  energy_density: "High energy density for extended runtime"
  safety_rating: "Automotive grade cells with integrated BMS protection"
  charging_method: "CC-CV charging profile through BMS"
  max_power_output: "9828W at 100% charge (180A * 54.6V)"
  max_charging_power: "1.7kW (32A * 54.6V)"
  placement_rationale: "See FAQ for battery placement considerations"