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1Pc Parallel Battery Convertor Adapter (AAA to AA, AAA to C, AA to C, AA to D,3 x 18650) Muti-sizes DIY Battery Holder Cases Box - AliExpress
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Amazon.com: Lenink AC Power Supply Adapter for AAA Battery,Replace 3 AAA Battery,White : Electronics
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Amazon.com: Hxchen 3 x 1.5V AAA Series Connection Plastic Black Cylinder Battery Storage Holder Case Adapter Black - (5 Pcs) : Electronics
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Amazon.com: Mugast AAA to C Battery Parallel Adapter, 3A to C Battery Converter Holder Box : Electronics
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Amazon.com: Lenink AC Power Supply Adapter for AAA Battery,Replace 3 AAA Battery,White : Electronics
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Amazon.com: Everlasting Glow AAA Battery Convertor Christmas, 5InL x 2InW x 7.5InH, Black : Tools & Home Improvement
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AAA Battery Converter Adapter Holder for Case- Large Strength and Strong Toughness Cylindrical AAA Batteries Holder - Walmart.com
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FLPT: an 18500 in a 21700 adapter is a damn near drop in replacement for those terrible triple-AAA holders. : r/flashlight
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