Fenix ALF-18 Battery Adapter
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"Nice fit"
Want to use your rechargeable 18650 batteries in your 21700 flashlights? No problem, with the ALF-18 Battery holder. Slide your 18650 battery inside the ALF-18 battery holder sleeve, and your battery will now be the size of a 21700, so you can use it quickly and effortlessly in your flashlight.
Overall rating: 4.88 / 5 from 25 reviews.
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Fenix product review
"Purchased for my husband after replacing his stolen fenix light. The light I purchased was not the same battery size so the adapter made it easy for him to use the batteries he already had."
Great gift item with great battery options
"Excellent. In case of lost special battery, or charging time, the 18650s are common and I already have a lot of 123s and 18650s."
Useful
"Perfect for me as I just came into a bunch of brand new 18650 batteries"
Good
"Good"
Works
"It's awesome. Seems like there should be 2 for the price. Works great. I have a bunch of 18650s and several lights that take 21700s"
Gotta Have it! Good Value! Buy it!
"You need this and you won't regret buying it."
GREAT! FITS THE BILL!
"Needed this to utilize batteries from my PK flashlight on my new TK16."
It’s OK for now
"Haven’t had to use it yet and haven’t had to try it out either. Purchased it just in case."
Works great with an Acebeam E70 and 18650 battery
"but pricy for what it is. Seems well made and robust enough for long term use. Limited choice on these adapters so went with Fenix, a known quality brand."