Bicycle Lights That Use 21700 Batteries

[JAS]

I am giving some thought to a bicycle light that uses 21700 batteries.

I used the Battery Junction website using those parameters and the choices I am given are:

Acebeam BK10

JETBeam BR10 Pro

Fenix BC26R

Olight RN1500

Which should I select and why?

 

[jtr1962]

Lots of the 8 LED China bike lights have built-in 21700s:

https://www.aliexpress.us/item/3256803019372863.html?spm=a2g0o.detail.1000014.2.52d1514cAIuuUH&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40050.362094.0&scm_id=1007.40050.362094.0&scm-url=1007.40050.362094.0&pvid=236bf500-6011-407c-addf-8d3ee61f3f3a&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40050.362094.0,pvid:236bf500-6011-407c-addf-8d3ee61f3f3a,tpp_buckets:668%232846%238113%231998&pdp_npi=4%40dis%21USD%2163.80%2131.9%21%21%2163.80%21%21%402103246617020707428667553e3210%2112000024659206633%21rec%21US%21131985237%21

https://www.aliexpress.us/item/3256804797880671.html?spm=a2g0o.detail.0.0.38116c4c15HrC0&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40050.362094.0&scm_id=1007.40050.362094.0&scm-url=1007.40050.362094.0&pvid=e0333c8b-3a8d-4d1f-aac0-003e2ed12302&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40050.362094.0,pvid:e0333c8b-3a8d-4d1f-aac0-003e2ed12302,tpp_buckets:668%232846%238113%231998&pdp_npi=4%40dis%21USD%2130.83%2113.87%21%21%21219.77%21%21%402103246617020707540267695e3210%2112000032124457578%21rec%21US%21131985237%21

https://www.aliexpress.us/item/3256804575286778.html?spm=a2g0o.detail.1000014.8.52d1514cAIuuUH&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40050.362094.0&scm_id=1007.40050.362094.0&scm-url=1007.40050.362094.0&pvid=236bf500-6011-407c-addf-8d3ee61f3f3a&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40050.362094.0,pvid:236bf500-6011-407c-addf-8d3ee61f3f3a,tpp_buckets:668%232846%238113%231998&pdp_npi=4%40dis%21USD%2150.22%2125.11%21%21%2150.22%21%21%402103246617020707428667553e3210%2112000030376073394%21rec%21US%21131985237%21

 

[JAS]

Are there any bike lights that use 2 x 21700 batteries?

 

[AstroTurf]

Are there any bike lights that use 2 x 21700 batteries?

bicycle lights that use 2 21700 batteries