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Amazon.com: 18650 Battery Case Holder, 4 Pcs 2 Slots x 3.7V DIY Battery Storage Box, in Parallel Black Plastic Batteries Case for 2 x 18650 Ltvystore : Electronics
Amazon.com: RuiLing 4-Pack 18650 Battery Holder 4 Slots x 3.7V Battery Storage Case DIY Batteries Clip Box with Pin : Electronics
Amazon.com: Ltvystore 18650 Battery Case Holder, 8 Pcs 4 Slots x 3.7V DIY Battery Storage Box, in Parallel Black Plastic Batteries Case with Pin for 4 x 18650 : Electronics
Amazon.com: Ltvystore 18650 Battery Case Holder, 12 Pcs 2 Slots x 3.7V DIY Battery Storage Box, in Parallel Black Plastic Batteries Case with Pin for 2 x 18650 : Electronics