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As of March 2018
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  March 2018 Accumulated total from January to March 2018
Quantity Amount y-o-y change in quantity y-o-y change in amount Quantity Amount y-o-y change in quantity y-o-y change in amount
Total of all batteries (exported) 221,133  52,958  86%  107%  639,895  142,184  99%  112% 
Total of primary batteries 93,273  2,554  87%  92%  259,602  7,153  97%  99% 
Zinc carbon 0%  0%  0%  0% 
Alkaline 5,223  102  198%  187%  12,819  231  211%  159% 
Silver oxide 39,443  518  72%  80%  113,064  1,565  88%  98% 
Lithium 48,607  1,781  98%  88%  133,482  4,948  101%  93% 
Zinc air 236  93%  92% 
Others 153  551%  461%  407  38%  239% 
Total of secondary batteries 127,859  50,404  85%  107%  380,293  135,030  100%  113% 
Lead-acid 187  2,593  85%  169%  537  5,192  98%  134% 
Nickel cadmium 1,104  117  48%  45%  6,572  654  108%  106% 
Nickel iron
Nickel metal-hydride 13,971  8,512  103%  105%  35,508  22,573  97%  110% 
Lithium ion 101,666  26,609  80%  89%  310,982  77,839  98%  102% 
Others 10,931  12,571  180%  174%  26,693  28,771  139%  157% 
Total of all batteries (imported) 124,477  15,262  85%  108%  384,413  49,528  101%  123% 
Total of primary batteries 116,749  1,840  85%  88%  359,616  5,559  101%  94% 
Zinc carbon 16,042  177  81%  100%  47,025  505  94%  94% 
Alkaline button 1,474  10  38%  35%  7,968  63  96%  94% 
Alkaline (exc. button type) 82,513  1,004  85%  76%  252,050  3,132  103%  93% 
Silver oxide 175  154%  193%  706  23  247%  222% 
Lithium 10,784  518  89%  115%  35,991  1,530  92%  107% 
Zinc air 5,740  112  116%  129%  15,803  267  115%  90% 
Others 22  12  1146%  56%  73  38  164%  20% 
Total of secondary batteries 7,727  13,422  95%  111%  24,796  43,969  105%  128% 
Lead-acid 612  2,878  81%  85%  2,048  9,524  93%  99% 
Nickel cadmium 31  98  51%  85%  139  440  69%  101% 
Nickel iron 0%  0% 
Nickel metal-hydride 2,017  367  103%  86%  6,013  1,270  91%  98% 
Lithium ion 4,993  8,952  96%  128%  16,162  29,057  114%  147% 
Others 75  1,127  57%  95%  434  3,677  144%  109% 
Total values may differ because they are rounded off to the nearest integer.

As of 2012, the "Others" category of imported secondary batteries has been separated into Nickel metal-hydride, Lithium ion and Others.
As of 2016, the "Alkaline" category of imported primary batteries has been separated into "Alkaline button" and "Alkaline (exc. button type)" categories.