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Spacer for 18500 Li-Ion cell to replace the 3xAAA battery compartment in those cheap and cheerful flashlights : r/functionalprint
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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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Amazon.com: Power Supply for 3 AA, AAA Battery, (2 Pack) 18500 Protected 3.7V Rechargeable Battery 1600mAh with Charger - [Replace 3 AAA, 3 AA Battery for 21, 51 LED UV Flashlight ] : Health & Household
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Amazon.com: uxcell AAA Battery 3x1.5V Storage Adapter Case,18650 Battery Holder Converter for AAA LED Flashlight 1 Set : Electronics
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Original 12v 150Ah 18650 Lithium Is Suitable For LED Lamp Electric Vehicle Solar Storage Battery 12.6V 3A Charger | Lazada PH
Many small flashlights use 3 AAA batteries to power them. The 3 AAA battery packs look like a kludge to replace a single Lithium cell. What is the size of that single
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3 AAA Dummy Battery Adapter USB Power Supply Switch Cable Replace 3 AAA Batteries for Radio Toys Kids Keyboard Piano - buy 3 AAA Dummy Battery Adapter USB Power Supply Switch Cable
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