Welcome back! We saved your shopping cart for you: View Cart

Fenix ARB-L16U 16340 700mAh 3.6V Lithium Ion (Li-ion) Button Top Battery with Micro USB Charging Port - Retail Card

Clam Shell Packaging
Clam Shell Packaging
Click to Enlarge Image
Thanksgiving Leftovers Sale
20% Off Fenix Linewide!

Use Coupon Code:

Offer valid while supplies last | Can not be combined with any other promotions | Ends Friday, December 13th at Midnight EST

Usually ships the next business day

Request a Volume Quotation

Battery Junction 30 Day Warranty
Every Order Ships Directly From The United States
Authorized Dealer For All Products Sold
Battery Junction Wholesale Account Signup
Battery Junction Free Keylight On Purchases Over $20 Promo

Fenix ARB-L16-700U

USB Rechargeable 16340 Li-ion Battery

The Fenix ARB-L16-700U is a high powered Li-ion battery that provides reliable power for specialty electronics. While this battery can be charged in a standard smart charger, it also has a built-in micro USB port that allows you to directly charge the battery! 16340 sized batteries are great for small personal electronics including Fenix LED flashlights. This battery produces 3.6 Volts of power and contains 700mAh capacity for extra long runtimes.

  • PCB Protection Circuit
  • Micro-USB charging port
  • Multiple protection systems
  • Short circuit protection
  • Up to 500 charge cycles
  • Pressure Relief Vent
  • Model: ARB-L16-700U
  • Size: 16340
  • Capacity: 700mAh
  • Voltage: 3.6V
  • Terminal Type: Button Top
  • Charging Current by Charger: 1A
  • Charging Current by USB Port: 0.3A
  • Weight: 183.5g
  • Dimensions: 18.6mm x 35.5mm
Battery Size:16340 / RCR123A
Battery Capacity (mAh):700
Battery Chemistry:Li-Ion
Battery Voltage:3.6
Battery Terminal Type:Button Top
Battery Shelf Life:3 Years
Packaging:Retail Packaging
Warranty:Battery Junction 30-Day Warranty, Fenix 1 Year Warranty
Return Policy:Battery Junction Return Policy
Product Weight:6.473oz
Product Dimensions:1.398" (L) x 0.732" (Diameter)
Country of Origin:CN
Associated Battery Sizes:16340, 17340, 2/3A, R123, RCR123, RCR123A
So. Cal.
Good battery, but wish it were a little shorter
July 6, 2019
I like the USB option for charging this battery. The battery measures 34.9 mm long. There is a small red LED at the positive end that shows when charging and it turns green with fully charged. The battery tops out at 4.20V via the USB. Of course, the battery could be charged with an external charger too. I have RCRs from Olight and Nitecore that are 650 mAh and the Fenix at 700 mAh does last a little bit longer than those. I am satisfied with the purchase.
By Joe
Good Battery with added Functionality
July 12, 2017
Seems to get the mAh stated. Fits all the lights I have tried it in. The charging port seems to charge the battery at a good speed. One thing to consider though is if you really need the built in port. It is very nice and works, but I adds a layer of "something to go wrong." Typically I carry a USB style portable charger (readily available on BatteryJunction) so these batteries only add redundancy to my system. However, they may be ideal for others to use in "non-rechargeable" light and make them rechargeable on the go.
ProsGood capacity Built in Charging
ConsNone Do you need the charger built in?
There are no questions or answers for this item.

Related Items

Fenix ARB-L16U 16340 700mAh 3.6V Lithium Ion (Li-ion) Button Top Battery with Micro USB Charging Port - Retail Card

  • $6.95
  • & Free Shipping On Orders Over $50
  • In Stock