Assertion: flashlight's battery | /r/HasProperty | single
Facets:
Source sentences:
text: Most flashlights use 3xAAA batteries or a single 18650 battery.
text: There are other headlamps that use other batteries (single AA, 3 AAA, CR123A, 18650...).
text: Some flashlights that use two CR123A batteries can take a single 18650 battery (though the 18650 battery is wider than CR123A cells and 18650's will not fit in some SureFire and Quark lights; 17650 or even 16650 batteries are available) which offers substantially more capacity than the two smaller cells together.