Tag: Fenix

  • Fenix TK17, TK21R, LD35R: Preview of New USB-C Flashlights

    Fenix TK17, TK21R, LD35R: Preview of New USB-C Flashlights

    Key Takeaways

    1. Fenix will launch the TK17, TK21R, and LD35R flashlights, featuring USB Type-C charging, at the IWA 2025 event in Germany.
    2. The LD35R flashlight has a magnetic back, secondary light, adjustable brightness levels, and includes a red and blue LED for emergency signaling.
    3. The LD35R’s main LED can reach 1,700 lumens in Turbo mode with a throw distance of 376 yards, and offers various lower brightness settings for extended battery life.
    4. The TK17 lacks built-in charging, requiring external battery charging via USB-C, while offering high brightness levels up to 3,500 lumens and an IP68-rated design.
    5. The TK21R includes a USB-C port, reaches up to 3,200 lumens in Turbo mode, and is set to launch after the TK17, with the LD35R expected in summer 2025.


    Fenix is set to unveil the TK17, TK21R, and LD35R flashlights in the coming months. This was revealed during the IWA 2025 event held in Germany. All three models feature USB Type-C charging capabilities, though not every model includes a built-in charging option.

    LD35R Features

    The LD35R is likely a good choice for those who enjoy working on desktop computers. It comes with a magnetic back and a secondary light that can shine in two directions, providing brightness levels of 100, 150, or 350 lumens. However, Fenix has not shared any information regarding battery life for this mode. Additionally, it includes a red and blue LED that can alternate or be set to SOS mode, which uses only the red light.

    Performance Specs

    The main LED in the flashlight has a distance of 376 yards at a powerful 1,700 lumens in Turbo mode, lasting for 2 hours and 40 minutes. Details about the “High” setting, which operates at 800 lumens, have not been disclosed yet. Users can also select lower brightness levels of 350, 150, or 15 lumens for durations of 6, 18, or 119 hours, respectively. The “R” in its name indicates that this flashlight includes a charging port.

    Comparison of Models

    The TK17 lacks this charging feature, requiring users to take out the battery for external charging through USB-C. This new flashlight boasts a sturdy and IP68-rated design, offering brightness options of 30, 350, 1,000, and 3,500 lumens. Its throw ranges from 33 to 328 yards and is powered by an ARB-L21-6000B battery, which is quite similar to the new Fenix 21700 battery with 6,000mAh and 21.6Wh that we’ve previously mentioned.

    The TK21R, which is related to the TK17, is slightly longer due to its built-in charging components, including a USB-C port. One key difference is in Turbo mode, where the TK21R reaches up to 3,200 lumens. However, the throw distance has not yet been specified.

    Market Trends

    Fenix also noted a decline in sales of chargers overall, as many consumers seem to favor flashlights equipped with convenient USB-C ports. Nonetheless, this does not imply that flashlights lacking USB-C ports will vanish from shelves. Models like the TK17 continue to hold significance, particularly in the professional sector where compatible chargers are typically available.

    The TK17 is anticipated to be the first to launch, targeting an April 2025 release with an estimated price of around €100 in Europe. Following that, the TK21R is expected to be available in May with a suggested retail price of €130. As for the LD35R, Fenix has not disclosed any pricing information, but its launch is scheduled for this summer.


  • Fenix 21700 Rechargeable Battery 6000mAh 21.6Wh Now in Stock

    Fenix 21700 Rechargeable Battery 6000mAh 21.6Wh Now in Stock

    Key Takeaways

    1. Fenix has launched new 21700 batteries with 21.6 Wh (6,000 mAh at 3.6 volts), SKU “ARB-L21-6000.”
    2. A USB Type-C version of the 21700 batteries is planned for the future, but it is not yet available.
    3. The new batteries maintain 75% capacity after 500 charge cycles, weigh 2.8 oz, and have dimensions of 0.87 x 3.02 inches.
    4. The ARB-L21-6000 batteries are compatible with several Fenix flashlights, but users should check device measurements before use.
    5. Priced at $24.95 each, the new batteries are comparable in price to Fenix’s earlier 5000mAh variant, entering the market later than competitors like Nitecore.


    At IWA 2025 in Germany, Fenix has announced that their new 21700 batteries, offering 21.6 Wh (6,000 mAh at 3.6 volts), are officially on the market. These cylindrical batteries, recognized by the SKU “ARB-L21-6000,” follow the earlier release of their 18650 batteries, which provided 14.4Wh/4,000 mAh and have been around for a while now.

    Battery Variants and Features

    The previous 18650 batteries come in two types; one has an integrated USB Type-C port, while the other does not. However, this option isn’t available for the new batteries. In a conversation with Notebookcheck, Fenix confirmed that a USB-C version of the 21700 batteries is in the works. They also mentioned that this upcoming version would be a bit longer due to the necessary USB charging components. Other than that, the two batteries are the same.

    Specifications and Compatibility

    The official specifications indicate that the battery will maintain 75% of its initial capacity after 500 charge cycles. It weighs 2.8 oz and has dimensions of 0.87 x 3.02 inches, making it slightly bulkier than the brand’s 5000 series, which measures 0.85 inches in diameter. Fenix claims that the ARB-L21-6000 is compatible with several flashlights, including the Fenix TK22R, Fenix HT18R, Fenix HT32, Fenix PD40R V3.0, Fenix PD36R V2.0, and LD45R. It is advisable to take precise measurements before using these batteries in other devices.

    Market Position and Pricing

    Until recently, Fenix was only selling 21700 batteries with 18 Wh or lower capacity. As a result, they are somewhat late to enter the 21700 battery market, especially when compared to rivals like Nitecore. For instance, the competing NL2160 battery has been on sale since late January 2024.

    Nonetheless, the new lithium-ion batteries are now available for purchase at $24.95 each from Fenix’s official online store. Interestingly, this pricing matches that of the previously mentioned 5000mAh variant with 18 Wh.