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As of September 2017
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  September 2017 Accumulated total from January to September 2017
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) 211,492  45,348  88%  112%  2,006,285  387,576  103%  114% 
Total of primary batteries 92,770  2,642  91%  113%  904,176  23,672  104%  109% 
Zinc carbon 35%  7%  84%  31% 
Alkaline 4,909  93  68%  88%  32,927  665  80%  97% 
Silver oxide 44,147  557  82%  99%  435,409  5,220  112%  114% 
Lithium 43,697  1,929  106%  117%  435,122  16,919  100%  106% 
Zinc air 691  117%  114% 
Others 17  63  9083%  267%  26  855  9%  197% 
Total of secondary batteries 118,722  42,707  85%  112%  1,102,109  363,905  102%  115% 
Lead-acid 194  1,454  95%  114%  1,596  11,526  105%  118% 
Nickel cadmium 1,326  136  40%  58%  15,216  1,530  54%  66% 
Nickel iron
Nickel metal-hydride 14,517  6,925  91%  100%  122,824  60,670  95%  120% 
Lithium ion 93,070  23,825  84%  100%  893,194  215,082  104%  106% 
Others 9,615  10,367  115%  183%  69,278  75,095  115%  147% 
Total of all batteries (imported) 116,195  13,410  104%  101%  1,023,973  118,479  102%  105% 
Total of primary batteries 108,711  1,801  104%  111%  954,903  16,123  102%  107% 
Zinc carbon 13,962  152  84%  101%  117,911  1,322  92%  101% 
Alkaline button 3,274  25  110%  183%  22,781  175  86%  84% 
Alkaline (exc. button type) 74,435  985  110%  113%  659,173  8,982  106%  107% 
Silver oxide 118  88%  84%  1,038  35  54%  68% 
Lithium 11,362  520  96%  106%  110,106  4,519  106%  114% 
Zinc air 5,534  86  111%  97%  43,719  783  89%  99% 
Others 26  30  91982%  2157%  174  307  115%  105% 
Total of secondary batteries 7,484  11,609  95%  100%  69,070  102,356  103%  105% 
Lead-acid 626  3,000  105%  114%  6,068  26,500  112%  114% 
Nickel cadmium 42  200  55%  105%  637  1,463  81%  110% 
Nickel iron 1830%  620% 
Nickel metal-hydride 1,765  450  102%  133%  17,081  3,684  99%  96% 
Lithium ion 4,882  6,814  91%  91%  44,368  60,694  108%  102% 
Others 168  1,145  134%  114%  910  10,009  36%  103% 
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.