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This listing just showed up on eBay. Is it complete? I am not sure I have the time right now to verify this, but it is a very good list from what I can tell. you can see it here.
Below is a list of all of the sets that the LEGO Batman Minifigures came from:
1. 7779, 7780, 7782
2.7781, 7783, 7785, Batman and Joker (SDCC 2008 Exclusive), Commemorative Limited Edition Batman Announcement
3. 7786, 7787
4. 7884, 7886, 7888
5. LEGO Batman 2 Acrylic Brick Trophy
6. 6858
7. 6857, 6860
8. 6857, 6860
9. 853429 Grey Hips Keychain
10. 10937
11. 6863, 6864
12. 10737, 30160, 70815, 76011, 76013
13. LEGO Batman: Visual Dictionary
14. 76000
15. 76001
16. 10672, 10724, SDCC Batman Classic TV Series Batmobile
17. The LEGO Movie Promotional Cube
18. 76010
19. 76012
20. 76023
21. 70817
22. 76025
23. 76026, 76034, 76053, 76055
24. 26027
25. Justice League vs. Bizarrow DVD
26. 76035
27. 71200
28. 76061
29. 76044
30. 76045, 76046
31. 76052
32. LEGO DC Super Heroes Character Book
33. 76054
34. 76056
35. 76069
36. 30522, 70901, 70904, 70910, 70918, 211701, 853650, 500493
37. 70900, 70907, 70908, 70912, 70914, 70923
38. 70903, 70920, 70922, 211803
39. 70909
40. 70909
41. 70909
42. 71017
43. 71017
44. 71017
45. 71017
46. 71017
47. 30607
48. 30607
49. 71344
50. The LEGO Batman Movie: Chaos in Gotham City Book
51. 5004928 Keychain
52. 5004929
53. 70913
54. 70915, 70917
55. 76086
56. 76087
57. 5004939
58. 5004939
59. 5004939
60. 5004939
61. 76092
62. 70922
63. 71020
64. 71020
65. 10753, 76137, 76138
66. 70923
67. 70923
68. 70923
69. 76097
70. 76110, 211906
71. 76111, 211901
72. 76112
73. 853744
74. DC Super Heroes Visual Dictionary
75. 70836
76. 76116
77. 76117
78. 70840
79. 70838
80. 76118, 76119, 76120,76122
81. 2019 SDCC Zebra Batman
82. 76139
83. 71026