China LiFePO4 Battery QR Code Decoder

helper.util.ts

function formatError(code, message) {
  return {
    code,
    message,
  };
}

function handleResponse(response) {
  const formatResponse = ({ ok, status, statusText }, data) => {
    const responseData = {
      success: ok,
      status,
      statusText,
      data,
    };
    if (!response.ok) {
      return Promise.reject(responseData);
    }
    return responseData;
  };

  const contentType = response.headers.get('content-type');
  if (contentType?.indexOf('application/json') !== -1) {
    return response.json().then((data) => formatResponse(response, data));
  }
  return response.text().then((data) => formatResponse(response, data));
}

export { formatError, handleResponse };

qr-code-decoder.service.ts

import { formatError } from './helper.util';

function decode(qrCode) {
  if (!qrCode?.length) {
    return Promise.reject(formatError(400, 'Bad Request'));
  }

  qrCode = qrCode.toUpperCase();

  const manufacturerCode = qrCode.substring(0, 3);
  const productTypeCode = qrCode.substring(3, 4);
  const batteryTypeCode = qrCode.substring(4, 5);
  const productionDateCode = qrCode.substring(14, 17);

  const [manufacturer, manufacturerWebsite] = getManufacturer(manufacturerCode);
  const productType = getProductType(productTypeCode);
  const [batteryType, nominalVoltage] = getBatteryType(batteryTypeCode);
  const [modelNumber, nominalCapacity] = getSpecification(manufacturer, qrCode);
  const productionDate = getProductionDate(productionDateCode);

  const qrCodeLength = qrCode.length;
  const isValidLength =
    qrCodeLength === 19 || qrCodeLength === 24 || qrCodeLength === 26;
  const isValid =
    isValidLength && productType !== 'Unknown' && batteryType !== 'Unknown';
  if (!isValid) {
    return Promise.reject(formatError(400, 'Invalid QR Code'));
  }

  const result = {
    manufacturer,
    manufacturerWebsite: manufacturerWebsite ? manufacturerWebsite : 'Unknown',
    productType,
    batteryType,
    modelNumber,
    nominalVoltage: nominalVoltage ? `${nominalVoltage}V` : 'Unknown',
    nominalCapacity: nominalCapacity ? `${nominalCapacity}Ah` : 'Unknown',
    productionDate,
  };

  return Promise.resolve(result);
}

function getManufacturer(manufacturerCode) {
  const manufacturers = {
    '001': ['CATL', 'https://www.catl.com'],
    '02Y': ['EVE', 'https://www.evebattery.com'],
    '04Q': ['EVE Power', 'https://www.evebattery.com'],
    '02K': ['Great Power', 'http://www.greatpower.net'],
    '069': ['GREE Altairnano/Yinlong'],
    '081': ['REPT', 'https://www.chinarept.com'],
    '08I': ['REPT', 'https://www.chinarept.com'],
    '08B': ['Lishen', 'http://www.lishen.com.cn'],
    '02C': ['Lishen', 'http://www.lishen.com.cn'],
    '0AL': ['Ganfeng', 'http://www.ganfenglithium.com'],
    '0B5': ['CALB', 'http://www.calb-tech.com'],
    OB5: ['CALB', 'http://www.calb-tech.com'],
    '09U': ['SVOLT'],
    '0F4': ['BYD'],
    '07H': ['Higee', 'http://www.ihigee.com'],
    '04U': ['Narada Power'],
    '00P': ['Sunwoda'],
    '0H9': ['Tafel'],
    '01Y': ['Narada'],
    '03H': ['Gotion', 'https://www.gotion.com.cn'],
  };
  return manufacturers[manufacturerCode] || ['Unknown'];
}

function getProductType(productTypeCode) {
  const productTypes = {
    C: 'Battery Cell',
    P: 'Battery Pack',
    M: 'Battery Module',
  };
  return productTypes[productTypeCode] || 'Unknown';
}

function getBatteryType(batteryTypeCode) {
  const batteryTypes = {
    A: ['NiMH', 1.2],
    B: ['LiFePO4', 3.2],
    C: ['LiMnO2', 3.0],
    D: ['LiCoO2', 3.7],
    E: ['Ternary', 3.7],
    F: ['Supercapacitor'],
    G: ['LTO', 2.3],
    Z: ['Other'],
  };
  return batteryTypes[batteryTypeCode] || ['Unknown'];
}

function getSpecification(manufacturer, qrCode) {
  let specifications;
  let specificationCode = qrCode.substring(5, 7);

  if (manufacturer === 'Gotion') {
    specifications = {
      14: ['52', 52],
      '0R': ['52', 52],
      16: ['GT102', 102],
      '09': ['105', 105],
      '1B': ['150', 150],
      23: ['GT-340', 340],
      '0Y': ['INP2714897A', 50],
    };
    specificationCode = qrCode.substring(6, 8);
  } else if (manufacturer === 'GREE Altairnano/Yinlong') {
    specifications = {
      A2: ['66160', 40],
      A3: ['66160', 45],
      A4: ['32140', 9],
    };
  } else if (manufacturer === 'SVOLT') {
    specifications = {
      20: ['CL01', 184],
      10: ['CE01', 104],
    };
  } else if (manufacturer === 'BYD') {
    specifications = {
      A3: ['102', 102],
    };
  } else if (manufacturer === 'REPT') {
    specifications = {
      '05': ['205', 205],
      O5: ['205', 205],
      26: ['CB71173200EA', 280],
      29: ['230', 230],
      40: ['CB71173204EB', 280],
      25: ['135', 135],
      54: ['142', 142],
      '03': ['CB3914895EA-50A', 50],
      '09': ['155', 155],
    };
  } else {
    specifications = {
      20: ['202', 202],
      '2O': ['202', 202],
      21: ['71H3L7', 280],
      22: ['173', 173],
      24: ['302AH', 302],
      '2W': ['71H3L7', 280],
      31: ['280', 280],
      '3I': ['280', 280],
      32: ['125', 125],
      52: ['114', 114],
      ER: ['234', 234],
      43: ['117', 117],
      46: ['136', 136],
      15: ['50', 50],
      64: ['LF90K', 90],
      65: ['LF105', 105],
      66: ['LF280', 280],
      68: ['LF50', 50],
      '6C': ['LF100L', 100],
      '6D': ['LF100MA', 100],
      71: ['LF280N', 280],
      '7I': ['LF280N', 280],
      72: ['LF230', 230],
      73: ['LF304', 304],
      75: ['LF173', 173],
      76: ['LF280K', 280],
      83: ['INP114E', 114],
      89: ['INP20P', 20],
      E6: ['LF22k', 22],
      35: ['4680 sample trial cell', 31],
      EJ: ['100', 100],
      FE: ['GSP34135214F', 100],
      F6: ['GSP27135250F', 100],
      FD: ['GSP42173166', 135],
      FI: ['50', 50],
      '03': ['FE100A', 100],
      PB: ['LP71173207', 272],
      PE: ['LP54173207', 190],
      NA: ['202', 202],
      PF: ['LP54173207', 202],
      A0: ['48173125', 100],
      A3: ['48173125', 100],
      AO: ['48173125', 100],
      S0: ['50', 50],
      SO: ['50', 50],
      37: ['L173F230', 230],
      C0: ['L160F100B', 100],
      CO: ['L160F100B', 100],
      '2C': ['L148F88', 88],
      G2: ['L194F130A', 130],
      BE: ['L300F187', 187],
      '3B': ['L173F280', 280],
      '2A': ['L148N58A', 58],
      '4C': ['L221N169A', 169],
      B9: ['l300f177a', 177],
      50: ['I50', 50],
      G4: ['106', 106],
      A1: ['75', 75],
      A6: ['142', 142],
      C1: ['120Ah', 120],
      C5: ['150Ah?', 150],
    };
  }

  return specifications[specificationCode] || ['Unknown'];
}

function getProductionDate(productionDateCode) {
  const yearCode = productionDateCode.substring(0, 1);
  const monthCode = productionDateCode.substring(1, 2);
  const dayCode = productionDateCode.substring(2, 3);

  let year;
  if (isNaN(yearCode)) {
    const code = yearCode.charCodeAt(0);
    if (code > 64 && code < 91) {
      year = 2020 + (code - 65);
    }
  } else if (Number(yearCode) > 0) {
    year = 2010 + Number(yearCode);
  }

  let month;
  if (isNaN(monthCode)) {
    const code = monthCode.charCodeAt(0);
    if (code > 64 && code < 68) {
      month = 10 + (code - 65);
    }
  } else if (Number(monthCode) > 0) {
    month = Number(monthCode);
  }

  let day;
  if (isNaN(dayCode)) {
    const code = dayCode.charCodeAt(0);
    if (code > 64 && code < 87) {
      day = 10 + (code - 65);
    }
  } else if (Number(dayCode) > 0) {
    day = Number(dayCode);
  }

  return new Date(year, month && month - 1, day).toLocaleDateString('en-GB', {
    year: 'numeric',
    month: 'short',
    day: 'numeric',
  });
}

export default { decode };