Which one, the 18650 or the 14500 battery, is the same size and dimension as a AA battery? If neither, how is each different? - Quora
![TrustFire TR-001 Battery Charger 3.0V and 4.2V for Rechargeable Batteries Li-ion IMR LiFePO4 10440 14500 16340 17670 18500 18650 18350 AC/DC Multi-functional Lithium Charger (TR001 Black): Amazon.co.uk: Electronics & Photo TrustFire TR-001 Battery Charger 3.0V and 4.2V for Rechargeable Batteries Li-ion IMR LiFePO4 10440 14500 16340 17670 18500 18650 18350 AC/DC Multi-functional Lithium Charger (TR001 Black): Amazon.co.uk: Electronics & Photo](https://images-eu.ssl-images-amazon.com/images/I/61Y5nveJCzL._AC_UL600_SR600,600_.jpg)
TrustFire TR-001 Battery Charger 3.0V and 4.2V for Rechargeable Batteries Li-ion IMR LiFePO4 10440 14500 16340 17670 18500 18650 18350 AC/DC Multi-functional Lithium Charger (TR001 Black): Amazon.co.uk: Electronics & Photo
![Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com](https://i5.walmartimages.com/asr/9f58a760-aa3c-4771-a438-bdbe39ec3786_1.aa31c8a9b8a78f028cc47434f4799755.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com
![Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com](https://i5.walmartimages.com/asr/65eed73f-1981-46e7-8920-3f98bf7a9dbd_1.3c4e6315f158c5b6134019d9ea09b6da.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com
![Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com Nitecore P18 Unibody Die-cast Futuristic Tactical Flashlight - 1800 Lumen w/ 1x IMR battery - Walmart.com](https://i5.walmartimages.com/asr/fee6318d-afd5-45bf-826d-e784862f3d96_1.1c86e7f9867fc99fb315e47476dce24e.png?odnHeight=768&odnWidth=768&odnBg=FFFFFF)