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

Unit: 1,000 (Quantity), million JPY (Amount)
  August 2019 Accumulated total from January to August 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) 196,021  41,786  85%  85%  1,526,797  359,637  88%  92% 
Total of primary batteries 98,213  2,541  100%  98%  814,204  20,377  109%  100% 
Zinc carbon 80  477  51 
Alkaline 5,553  95  464%  268%  49,171  906  191%  168% 
Silver oxide 42,156  523  91%  91%  375,790  4,839  116%  112% 
Lithium 50,424  1,675  99%  96%  387,849  12,363  98%  88% 
Zinc air 913  14  172%  231% 
Others 239  87%  102%  2,204  66%  139% 
Total of secondary batteries 97,807  39,245  74%  84%  712,593  339,260  72%  91% 
Lead-acid 139  994  77%  78%  1,317  9,841  91%  84% 
Nickel cadmium 626  71  65%  48%  7,341  1,047  59%  78% 
Nickel iron 0%  0%  0%  8% 
Nickel metal-hydride 10,534  9,070  97%  110%  92,461  71,764  90%  112% 
Lithium ion 79,216  17,773  72%  74%  554,528  148,096  69%  76% 
Others 7,293  11,337  70%  89%  56,946  108,512  79%  109% 
Total of all batteries (imported) 105,289  18,974  96%  132%  952,274  156,236  104%  124% 
Total of primary batteries 97,597  1,682  95%  98%  882,308  14,687  104%  102% 
Zinc carbon 15,794  160  116%  110%  99,011  1,038  95%  95% 
Alkaline button 1,480  13  131%  215%  17,107  134  88%  94% 
Alkaline (exc. button type) 66,142  874  90%  89%  635,040  8,044  108%  108% 
Silver oxide 52  32%  59%  935  37  65%  75% 
Lithium 9,512  508  104%  104%  90,012  4,230  94%  98% 
Zinc air 4,604  91  100%  104%  40,121  860  93%  114% 
Others 11  33  9485%  572%  82  344  38%  59% 
Total of secondary batteries 7,692  17,291  102%  137%  69,966  141,550  105%  127% 
Lead-acid 598  2,558  100%  90%  5,278  23,397  103%  97% 
Nickel cadmium 10  118  17%  86%  424  1,083  90%  90% 
Nickel iron 0%  0%  0%  0% 
Nickel metal-hydride 1,379  293  86%  77%  14,515  3,072  96%  97% 
Lithium ion 5,561  13,638  107%  162%  48,816  108,405  108%  145% 
Others 144  683  176%  80%  933  5,594  97%  64% 
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.