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As of April 2020
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  April 2020 Accumulated total from January to April 2020
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) 164,322  30,515  99%  67%  734,654  160,866  103%  88% 
Total of primary batteries 108,045  2,709  98%  99%  392,516  10,114  99%  100% 
Zinc carbon 17  58 
Alkaline 10,804  185  153%  138%  33,119  587  123%  118% 
Silver oxide 45,210  638  95%  99%  174,834  2,293  96%  97% 
Lithium 51,831  1,666  93%  94%  184,171  5,995  99%  99% 
Zinc air 183  610%  59%  332  85%  53% 
Others 218  174%  130%  1,229  101%  106% 
Total of secondary batteries 56,277  27,806  102%  65%  342,138  150,753  109%  87% 
Lead-acid 107  746  66%  58%  526  3,643  77%  72% 
Nickel cadmium 1,039  138  97%  112%  2,860  404  83%  70% 
Nickel iron
Nickel metal-hydride 13,738  4,970  112%  50%  45,218  35,442  107%  98% 
Lithium ion 31,975  13,537  96%  89%  255,274  74,180  106%  101% 
Others 9,419  8,416  110%  51%  38,259  37,083  148%  64% 
Total of all batteries (imported) 123,846  19,408  114%  99%  481,950  70,331  96%  90% 
Total of primary batteries 113,942  1,864  114%  115%  450,062  7,348  97%  95% 
Zinc carbon 12,016  136  135%  144%  45,488  481  98%  100% 
Alkaline button 5,022  41  217%  178%  10,744  88  107%  110% 
Alkaline (exc. button type) 79,984  972  111%  107%  325,918  3,993  96%  93% 
Silver oxide 150  113%  79%  591  22  100%  100% 
Lithium 11,300  572  101%  115%  43,926  2,060  93%  94% 
Zinc air 5,461  122  112%  131%  23,382  497  115%  106% 
Others 17  6119%  320%  14  207  72%  105% 
Total of secondary batteries 9,904  17,544  111%  97%  31,888  62,984  88%  90% 
Lead-acid 683  2,830  117%  104%  2,707  12,771  101%  105% 
Nickel cadmium 71  146  91%  62%  222  451  114%  75% 
Nickel iron
Nickel metal-hydride 2,466  464  109%  99%  7,823  1,452  98%  88% 
Lithium ion 6,607  12,858  112%  93%  20,885  44,377  84%  84% 
Others 77  1,246  96%  175%  252  3,933  51%  142% 
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.