Fenix ARB-L16-1050UP is a premium rechargeable Li-ion battery size RCR123A (16340) with a huge capacity of 1050 mAh and a built-in USB-C charging connector.

The main advantage is the versatility of charging. You can charge the battery by plugging a cable directly into its USB-C port (e.g. with a phone charger or from a computer), in a conventional external charger, or directly in charging flashlights. It is an ideal solution especially for models that do not have their own charging port, such as the Fenix GL06, Fenix GL07 or Fenix GL22. It also serves well as a spare cell for Fenix E18R V2.0, Fenix HM50R V2.0, Fenix HM51R V3.0, Fenix PD25 and others. Thanks to modern Li-ion technology it does not suffer from memory effect and has minimal self-discharge, so it is always ready for use.

Fenix ARB-L16-1050UP is among the safest Li-ion batteries on the market thanks to two-stage protection:

1. Electronic protection: Integrated circuits at the positive pole guard the battery against overcharge, deep discharge, short circuit and excessive current draw. If the limit values are exceeded, the electronics safely disconnect the cell.
2. Mechanical protection: Inside the battery there is a separator, overheat protection (PTC) and a special explosion-proof vent.

Its size corresponds to the RCR123A standard and it serves as a rechargeable alternative to disposable CR123A batteries. Before purchase, however, check compatibility: this rechargeable cell has a higher nominal voltage (3.6 V) compared to disposable batteries (3 V).

It is also suitable for older models: Fenix HM51R (incl. V2.0), Fenix E15 XP-G2, Fenix E16, Fenix RC09, CL09, Fenix PD22 Ultimate Edition, Fenix PD25, Fenix E18 and LD15R.

CAUTION – do not use in older models: Fenix E15 (does not apply to the XP-G2 version), PD10, PD12, PD20, PD22 (does not apply to the Ultimate Edition) and HL50. The higher voltage could damage their electronics!

Battery specifications

• Nominal voltage: 3.6 V.
• Capacity: min. 1050 mAh (3.78 Wh).
• Maximum discharge current: 2.1 A.
• Maximum charging current: 0.73 A.
• Protective electronics built into the positive pole provide protection against overcharge, deep discharge, overheating and short circuit.
• Built-in USB-C connector for easy charging, charging time approx. 2.5 hours.
• Lifetime: 500 charging cycles (until capacity drops to 70%).
• Diameter: 16.75 mm.
• Length: 34.5 mm.
• Weight: 25 grams.

Charging options

The cell fully replaces older types Fenix ARB-L16-700U, ARB-L16-700UP, ARB-L16-800UP. It can be charged:

• Via the USB-C connector: Plug the USB cable into the side connector. During charging the indicator on the top lights red, after full charge it lights blue. A completely discharged cell charges in about 2.5 hours.
• In the flashlight or headlamp: The cell can also be charged inside compatible charging lights.
• In a conventional charger: Common chargers for 3.6/3.7V Li-ion cells can be used.

Compatible chargers

USB charger Fenix ARE-D1
USB charger Fenix ARE-D2
Mini USB charger MC1
Four-slot USB charger VC4SL
Eight-slot USB charger VC8S
USB charger Lii-100
Four-slot charger Lii-600
SkyRC MC5000

Safety guidelines

• Do not discharge the cell below 2.5 V.
• Do not short-circuit the poles (do not touch both poles simultaneously with a conductive object).
• Do not throw into fire or water.
• When inserting into a charger, observe correct polarity.
• Use only chargers intended for Li-ion cells.

Warranty

2 year warranty.

We offer a 30-day period for returning or exchanging goods if, for any reason, you are not satisfied with your order.

For more information, please see our Return Policy here.

Orders received by 14:00 are dispatched the same day. Delivery usually takes place on the next business day, depending on the selected shipping method. During busy periods, please allow 1–3 business days for order processing.

Free delivery from €200 / for oversized shipments from €400

Free of charge, ready for pickup on the next business day

For more information, please see our Delivery page.