It works
"Seems smaller in diameter than I was expecting but the battery works fine! I had to wrap it with electrical tape for my use."








Power up your favorite LED flashlights with the Fenix ARB-L16, a strong and reliable 16340 Li-ion battery from the fine folks over at Fenix. This battery features a massive 700mAh capacity along with 3.6V energy output that is perfect for powering strong LED lights and other devices that require high voltage. Each Fenix battery is designed with all of the highest end safety features and quality construction that is a staple of the Fenix line.
Features:| Brand | Fenix |
| SKU | FENIX-ARB-L16-700 |
| Series | PD (Professional Performance) |
| UPC | 6942870303208 |
| Size | 16340 / RCR123A |
| Voltage | 3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 700 |
| Chemistry | Li-Ion |
| Sub-Chemistry | LiCoO2 ICR |
| Shelf Life | 3 Years |
| Packaging | Retail Packaging |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
| Size | 16340 / RCR123A |
| Voltage | 3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 700 |
| Watt Hours (wH) | 2.59 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | No |
| Equivalent Types | 16340, CR123A, R123, RCR123, RCR123A |
| Length | 1.378 in (35 mm) |
| Diameter | 0.63 in (16 mm) |
| Weight | 0.614 oz (17 g) |
| Packaging | Retail Packaging |
| Warranty |
Fenix 1 Year Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Overall rating: 4.5333333 / 5 from 15 reviews.
Review topics: [service, charger, problem, price, works, buy, batteries, setting].
"Seems smaller in diameter than I was expecting but the battery works fine! I had to wrap it with electrical tape for my use."
"A great battery at a great price."
"These are good and I have ended up using these around the house, where another set or a pair of primary 123s are handy, because when these die, they just go, no warning. I guess that's the nature of the beast, so I have just adjusted their usage profile for best application for me."
"The thing about these batteries they work just fine for me in 2 cell lights but I do believe they work there very best when used alone in single cell lights, I have no problems with these and I do believe these batteries will serve there purpose well and if they don't. . . . . I can not recall anytime I have ever had a problem with any of Fenix products, they some of the best in batteries and flashlights IMO."
"Bought a lot of this size cell and these are the best I have found so far."
"I bought two of these as well as some other off-brand batteries and these died after about 6 months of usage. The others are still going strong."
"Only last 30 mins. . Very disappointed!"
"Glad I went with Fenix this time. Well built great running battery. Better than two other well known brands I have used. Give them a try, you'll be happy."
"I have an OLight S1 and the corresponding battery they recommend. (The RCR123A 650mAh 3. 7v Olight battery- actually have 2 of them & both behave the same) I noticed that when the batteries are anything less than fully charged, will shut the S1 off in high mode until I unscrew the tail cap which seemed to reset the flashlight. I bought this Fenix battery to replace the OLight ones = Problem solved! -No more shut off in high mode. It just dims down from 500 to 300 lumens like it's supposed to. Funny thing is I even contacted OLight about this and they just had a generic response of 'use the Olight rcr123a blah blah blah'. This Fenix battery holds a charge well, seems to discharge very slowly when stored, and simply performs flawlessly. Buy it!"
"This high capacity battery is the one I use in the Fenix RC09 light. It works very well and lasts quite a long time when the light is on high or lower setting. Of course there is no problem running on turbo mode, it just lasts for a shorter time. Quick to recharge full capacity using the built-in RC09 charger and USB cable."
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