Fenix ARE-D1 Battery Charger

(47 customer reviews)

$21.00 $14.95

SKU: ARE-D1 Category:

The Fenix ARE-D1 is a single-channel smart charger, built for different types, and different size, rechargeable batteries, whether it be Li-ion, Ni-MH or Ni-Cd. Supports Micro USB charging and USB discharging to keep your other devices charged too. A high-definition LCD screen clearly displays the charging, discharging and battery status. The charger also includes multiple built-in protection circuits that protect against short circuits, over-current, over-voltage and reverse polarity. BATTERIES NOT INCLUDED.

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Specifications of the ARE-D1 Battery Charger

Battery Compatibility:

Li-ion batteries: 10440, 14500, 16340, 18650, 21700, 26650
Ni-MH or Ni-Cd batteries: AA, AAA, C


4.2V/3.65V: 10440, 14500, 16340, 18650, 21700, 26650 (Li-ion)
1.5V: AA, AAA, C (Ni-MH/Ni-Cd)


0.5A/1.0A/2.0A: 10440, 14500, 16340, 18650, 21700, 26650 (Li-ion)
0.5A/1.0A: AA, AAA, C (Ni-MH/Ni-Cd)


2.2 oz. (61.3g) excluding cable


Length: 4.7” (120mm) Width: 1.5” (38mm) Height: 1.2” (30mm)

Additional Features

  • Compatible with different types and sizes of battery
  • LCD screen displays charging status and battery levels
  • 2A large charging current
  • Micro USB charging and discharging
  • Built-in multi-protection circuit
  • Short circuit protection, over-current protection, over-voltage protection and reverse-polarity protection.
  • Micro-computer chip controlled digitally regulated charging to extend battery lifetime.
  • Input: Micro USB 5V/2A charging, from external power source.
  • Rated output power: 3W (Ni-MH/Ni-Cd), 8.4W (Li-ion).
  • USB output: 5V/2A, for external power source.
  • Operating temperature: -20°C to 50°C.
  • Operating humidity: 5% to 90%.
  • Storage temperature: -20°C to 80°C.

Battery Insertion

  • Keep the battery polarity markings in conformity with the charger markings (Only charge the allowed battery, and never charge non-rechargeable battery).
  • After the battery is inserted, the LCD screen will light up (Pic 1) to display the current battery level, voltage, and type (Li-ion or Ni-MH).

Battery Charging

  • Micro USB port is the charging port (Pic 2). Connect to the power supply and insert the battery, the LCD screen will display the charging status and battery level. And the the battery icon on the screen will blink for 8 seconds, charging current can be selected within the 8 seconds by single clicking the button.
  • The rated charging current is 1.0A. 0.5A, 1.0A and 2.0A can be selected for Li-ion battery; 0.5A and 1.0A can be selected for Ni-MH/Ni-Cd battery.


  1. It is normal for the battery temperature to be below 55°C during charging, but due to the high charging current, the battery may heat, so be careful of scalding.
  2. There will be no trickle charging if Li-ion battery is fully charged to prevent overcharging.
  3. There will be trickle charging of 3-5mA of Ni-MH/Ni-Cd battery to ensure it is fully charged.

Battery Discharging

  • After the rechargeable battery is inserted, connect the USB port of the charging device to the port of the charger’s to start discharging. The maximum discharging current is 2A.
  • When discharging, press and hold the button over 2 seconds, the “USB 5V” icon on the LCD display will continue to flash. At this time, the charger unlocks the small current (about 100mA) discharging mode, press the button again over 2 seconds, the “USB 5V” icon is always on and the small current discharging mode is limited.
  • The LCD screen will display the current battery level and voltage during the discharging process.
  • This charger only works with Li-ion battery discharging. When it is charging a battery, the discharging function will be locked. When charging is stopped, the USB discharging function is unlocked and can be used for external devices.

LCD Screen Display

  • The LCD screen will display for 2 seconds after connecting to the power supply. (Pic 1)
  • If there is no battery in the channel, 2 seconds later, the LCD screen will only display the battery symbol, and then the screen will go out after 30 seconds. Single click the button, the screen will be lit up with the battery symbol displayed.
  • The battery type, capacity and charging status will be displayed after battery insertion. Single click the button to select charging current during the 8 seconds with the battery symbol displayed. Then single click the button – the screen will cycle through charging current (A)→battery voltage (V)→charging capacity (Ah)→charging time (T). Press and hold the button over 2 seconds to turn off the LCD screen. Single clicking the button again will turn on the LCD screen.

Battery Level Indication

The charger will automatically detect the battery level with battery inserted and connected to the power source. The battery level will be displayed on the LCD screen through battery status bar, and then charging will start. If there is no power connected, the battery level can’t be detected and displayed, even with battery inserted.

Battery level will be displayed as follows by the battery status bar:
One flashing, four off: less than 20%
One bar constant-on, one flashing, three off: 21% – 40%
Two bars constant-on, one flashing, two off: 41% – 60%
Three bars constant-on, one flashing, one off: 61%- 80%
Four bars constant-on, one flashing: more than 81%
Five bars constant-on: fully charged

Short-circuit Protection

If short-circuit is detected, charging will autostop.

Reverse Polarity Protection

If the battery is inserted the wrong way, charging will not begin.

Overcharge Protection

When fully charged, the charging current on the LCD screen will be displayed as 0.


  1. Only intended for rechargeable Li-ion batteries, Ni-MH and Ni-Cd batteries. Other types of batteries may cause battery breach, leakage or explosion, and can cause damage to people and property.
  2. Use the battery charger in normal working conditions and cut off the power completely after usage.
  3. Insert the battery properly.
  4. Do not dismantle or modify the charger or use it for any other purpose.
  5. Keep the charger out of reach of children. Children should use the battery charger only under adult supervision.

47 reviews for Fenix ARE-D1 Battery Charger

  1. Walter K Folds (verified owner)


  2. Dan Wolff (verified owner)

    Charger works as described. No issues.

  3. Anonymous (verified owner)

    Great little charger for the money. Haven’t had any issues with it charging 18650 and 21700 batteries so far.

  4. John L. (verified owner)


  5. Wenbin Z. (verified owner)

    The current Won’t stay at 2A, it drops to < 1A quickly

    • Dianne

      Warranty will be contacting you to troubleshoot this.

  6. Joseph Houston (verified owner)

    This battery charger is perfect form everyday carry and charges all sizes of batteries even the ones with the USB built-into them. Shipping was on time, no complaints about this product.

  7. Ali Hamoudi (verified owner)

    Very good

  8. Terry H. (verified owner)

    Great charger

  9. Jeffrey (verified owner)

    Works as advertised

  10. John Caskey (verified owner)

    Great addition for extra battery for edc backup

  11. Anonymous (verified owner)

    Charges and supplies

  12. Matthew M. (verified owner)

    Does everything it should. Display for the charge level is nice. Oh, and it works as a phone charger.

  13. David G. (verified owner)

    Great display of charging status.

  14. David Phillips (verified owner)

    works as advertised

  15. John P. (verified owner)

    Very nice charger. Can charge at 2A for the big 21700 cells! Small form factor to carry everywhere.

  16. Dayton Akioka (verified owner)

    Thank you!

  17. Joseph A. (verified owner)

    Nice charger at a fair price.

  18. Glenn Mathis (verified owner)

    charger is fine

  19. Anthony D. (verified owner)

    Perfect for my needs, small & packable.

  20. John E. (verified owner)

    Nice unit. I had the ARE-D2 already, which works great. However, this one is more compact when hauling single cell flashlights and you need a charge.

  21. Anonymous (verified owner)

    Charger arrived sooner than expected and was put to work immediately with GREAT results.

  22. Robert (verified owner)

    Great charger.

  23. Chris B. (verified owner)


  24. Sean (verified owner)

    Great customer service- contacted chat rep and found the correct charger based off the battery info I had.

  25. Doug (verified owner)

    It works great

  26. Creed S. (verified owner)

    Just a charger…not necessary if you use the batteries with the USB port directly on the battery

  27. John K. (verified owner)

    Extremely nice charger. Has digital voltage tester built in. Works great and inexpensive for what it does. I’m buying another for my work.

  28. Colin Salmon (verified owner)

    Works well.

  29. Rodney (verified owner)

    Excellent design, works great

  30. Richard Lieber (verified owner)

    Type should be a bit bigger, other than that I like it very much.

  31. Anonymous (verified owner)

    Great value

  32. Paul W. (verified owner)

    Great charger. Easy to use and charges fast.

  33. William D. (verified owner)

    Great charger. Easy to use and I like the versatility of being able to charge multiple battery sizes.

  34. Anonymous (verified owner)

    Takes a while to charge, but does a good job.

  35. James Fitzsimmons (verified owner)

    Makes charging very easy

  36. Eric (verified owner)

    Easy to read and use. Wish there was a 120v plug as well though.

  37. Tim Y. (verified owner)

    Charger works perfectly. Has nice features. Charging made super easy

  38. Murad (verified owner)

    Quality charger must have for fenix 21700 batteries

  39. Frank W. (verified owner)

    Charged several batteries with this, I prefer it over the USB-topped batteries designated by the U-suffix sold by Fenix. It’s easy to understand and use and it charges all the latest style batteries along with some of my older-style ones.

  40. Mark (verified owner)

    Great charger handles multiple battery types

  41. Frank W. (verified owner)

    Charges anything! Delivered quickly and cost was excellent.

  42. Alexander D. (verified owner)


  43. Vivian (verified owner)

    Genius design that serves dual purposes. I carried this charger and the ARB-L18-3500U rechargeable battery during a 100 mile mountain race. This eliminated the need to carry an additional power bank to charge my watch/phone since I would need a spare battery for the headlamp anyway – of course I was using a Fenix headlamp. Less gear to carry and I was a happy runner. Thank you Fenix!

  44. JASON M. (verified owner)

    works great

  45. Barry Bishop (verified owner)

    I think this charger does work and is not to blame for failing to charge one rechargeable battery that Fenix supplied with a PD25. The charger’s display is a nice feature.

    • Dianne

      Warranty is contacting you about that battery.

  46. Ronald Makarewicz (verified owner)

    Good price

  47. Diego (verified owner)


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