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

Unit: 1,000 (Quantity), million JPY (Amount)
  September 2019 Accumulated total from January to September 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) 217,454  47,087  112%  96%  1,744,251  406,724  90%  92% 
Total of primary batteries 104,295  2,503  117%  102%  918,499  22,881  110%  100% 
Zinc carbon 69  546  60 
Alkaline 5,756  104  297%  251%  54,927  1,010  199%  174% 
Silver oxide 51,517  636  112%  104%  427,307  5,475  115%  111% 
Lithium 46,953  1,450  116%  96%  434,802  13,813  99%  89% 
Zinc air 0%  0%  913  14  116%  163% 
Others 304  0%  110%  2,509  2%  134% 
Total of secondary batteries 113,159  44,584  108%  96%  825,753  383,844  75%  92% 
Lead-acid 198  1,313  110%  99%  1,514  11,154  94%  85% 
Nickel cadmium 1,209  171  308%  246%  8,550  1,218  66%  86% 
Nickel iron 2%  54% 
Nickel metal-hydride 14,579  10,380  96%  125%  107,041  82,144  91%  114% 
Lithium ion 88,367  20,118  107%  92%  642,895  168,213  73%  77% 
Others 8,807  12,602  131%  85%  65,753  121,114  83%  106% 
Total of all batteries (imported) 134,164  17,450  101%  114%  1,086,439  173,696  103%  123% 
Total of primary batteries 126,214  2,136  101%  117%  1,008,523  16,823  103%  104% 
Zinc carbon 12,641  152  81%  84%  111,652  1,190  93%  94% 
Alkaline button 2,634  11  408%  329%  19,742  145  98%  99% 
Alkaline (exc. button type) 92,806  1,166  98%  99%  727,846  9,211  107%  106% 
Silver oxide 252  111%  132%  1,186  44  71%  81% 
Lithium 11,244  616  123%  151%  101,256  4,846  96%  103% 
Zinc air 6,630  148  174%  285%  46,751  1,008  100%  125% 
Others 37  14%  633%  89  380  33%  65% 
Total of secondary batteries 7,949  15,314  97%  114%  77,916  156,873  104%  125% 
Lead-acid 706  2,997  114%  102%  5,984  26,393  104%  98% 
Nickel cadmium 160  175  876%  234%  584  1,258  120%  99% 
Nickel iron 0%  0% 
Nickel metal-hydride 1,506  329  83%  99%  16,022  3,400  94%  97% 
Lithium ion 5,494  11,061  98%  119%  54,311  119,475  107%  142% 
Others 84  752  59%  89%  1,016  6,346  92%  66% 
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.