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As of April 2019
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  April 2019 Accumulated total from January to April 2019
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) 165,871  45,745  76%  89%  709,920  182,811  83%  94% 
Total of primary batteries 110,582  2,727  113%  96%  395,773  10,103  111%  101% 
Zinc carbon 44  246  25 
Alkaline 7,077  133  272%  224%  26,958  497  175%  171% 
Silver oxide 47,725  646  117%  121%  182,414  2,375  119%  113% 
Lithium 55,705  1,772  102%  92%  185,762  6,042  99%  88% 
Zinc air 30  392  166%  273% 
Others 167  60%  53%  1,156  76%  160% 
Total of secondary batteries 55,290  43,018  46%  89%  314,147  172,708  63%  94% 
Lead-acid 163  1,279  84%  92%  681  5,072  93%  77% 
Nickel cadmium 1,073  123  91%  95%  3,461  581  45%  74% 
Nickel iron 0%  0%  0%  0% 
Nickel metal-hydride 12,319  9,874  80%  111%  42,429  36,076  83%  115% 
Lithium ion 33,165  15,259  36%  67%  241,646  73,422  60%  73% 
Others 8,569  16,482  80%  108%  25,929  57,557  69%  131% 
Total of all batteries (imported) 108,532  19,682  115%  138%  500,028  77,986  104%  122% 
Total of primary batteries 99,647  1,628  115%  114%  463,962  7,709  104%  110% 
Zinc carbon 8,902  95  84%  93%  46,412  481  81%  79% 
Alkaline button 2,315  23  74%  94%  10,022  80  90%  91% 
Alkaline (exc. button type) 72,255  908  128%  121%  339,321  4,273  110%  110% 
Silver oxide 132  111%  146%  591  22  72%  80% 
Lithium 11,175  498  99%  113%  47,298  2,187  100%  111% 
Zinc air 4,867  93  90%  95%  20,298  470  96%  129% 
Others 2%  58%  19  197  23%  225% 
Total of secondary batteries 8,885  18,054  115%  141%  36,066  70,278  111%  124% 
Lead-acid 582  2,753  98%  104%  2,683  12,228  102%  100% 
Nickel cadmium 78  236  85%  158%  195  600  85%  102% 
Nickel iron
Nickel metal-hydride 2,270  470  121%  126%  7,957  1,653  101%  101% 
Lithium ion 5,874  13,881  116%  160%  24,741  53,023  117%  141% 
Others 81  713  69%  73%  490  2,774  89%  60% 
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.