- Product Code: 6942870310794
- EAN: 6942870310794
Fenix HM75R SR Power Extender 5000mAh is a powerful power bank that significantly extends the runtime of the HM75R SUPERRAPTOR 3 headlamp and reduces the need for charging. It also functions as a 5000 mAh USB-C power bank for phones, GPS devices, fitness trackers, heart rate monitors and other USB-C rechargeable devices.
The power bank includes a Fenix ARB-L21-5000 V2.0 Li-ion battery and supports up to 18 W fast charging. Supported fast-charging standards include PD3.0, PD2.0, QC3.0, QC2.0, FCP, SFCP, PE2.0 and PE1.1. Intelligent low-current detection automatically adjusts the discharge current for devices requiring low current, reducing unnecessary energy consumption. Low-current mode is activated by holding down the power switch for three seconds.
POWER EXTENDER is designed to work intelligently with the HM75R SUPERRAPTOR 3 headlamp. It primarily supplies power directly to the light, ensuring that it is immediately ready for use and operates consistently, while simultaneously charging the headlamp?s own battery. If the headlamp battery does not accept charging in cold conditions, the power bank supplies power directly to the light. This reduces the load on the internal battery and supports reliable operation of the light.
The headlamp can also be used with the POWER EXTENDER alone, without the internal battery, reducing the overall weight. Locking cables help maintain the IP68 rating even when the power bank is connected. The construction is completely dustproof, waterproof and impact-resistant to drops of up to two metres. The waterproof USB-C charging port complies with the EU standard.
The maximum light output of the SUPERRAPTOR 3 headlamp with the POWER EXTENDER is 1200 lumens. This optimises power management and enables the headlamp battery to be charged simultaneously during use. At the lowest output level, the power bank provides up to 447 hours of continuous runtime, reducing the number of charging cycles and improving reliability during prolonged use. Turbo mode runtime refers to continuous operation as light output decreases from 100 percent to 10 percent.
Two locking USB-C to USB-C cables are included, with lengths of 40 cm and 100 cm. The different cable lengths and quick-lock system enable flexible placement and multiple mounting options. The power bank can be placed, for example, on a headband, in a pocket or in a backpack.
Fenix lights are tested in the manufacturer?s own laboratory according to the ANSI/PLATO FL1 standard. The power bank is covered by a two-year Fenix quality warranty, while the included battery has a 12-month warranty.
Fenix HM75R SR Power Extender 5000mAh - Features:
- Product type: headlamp power bank and USB-C power bank
- Compatibility: designed for the HM75R SUPERRAPTOR 3 headlamp
- Battery type: Li-ion
- Battery size: 21700
- Included battery: Fenix ARB-L21-5000 V2.0 Li-ion
- Capacity: 5000 mAh
- Nominal voltage: 3.6 V
- Operating voltage range: 3.2?4.2 V
- Maximum charging power: 18 W
- Maximum input: 5 V, 9 V or 12 V
- Maximum output: 5 V, 9 V or 12 V
- Fast-charging standards: PD3.0, PD2.0, QC3.0, QC2.0, FCP, SFCP, PE2.0 and PE1.1
- Low-current detection: automatically adjustable discharge current for devices requiring low current
- Low-current mode activation: press and hold the power switch for three seconds
- Power supply to headlamp: supplies power directly to the light while simultaneously charging the headlamp battery
- Use without internal battery: the HM75R SUPERRAPTOR 3 headlamp can be used with the POWER EXTENDER alone
- Maximum light output with compatible headlamp: 1200 lumens
- Maximum runtime: up to 447 hours at the lowest output level
- Protection rating: IP68, fully dustproof and waterproof
- Impact resistance: 2 metres
- Charging port: waterproof USB-C port compliant with the EU standard
- Cable connection: locking USB-C to USB-C cables
- Mounting: quick-lock system for different mounting options
- Dimensions: 107.7 x 28 x 28 mm
- Weight: 134 g with battery
- Testing standard: ANSI/PLATO FL1
- Power bank warranty: 2 years
- Battery warranty: 12 months
- Package contents: HM75R SUPERRAPTOR 3 POWER EXTENDER power bank, ARB-L21-5000 V2.0 Li-ion battery, 40 cm USB-C to USB-C cable, 100 cm USB-C to USB-C cable, 2 cable clips, replaceable O-ring seal, user manual and warranty card
The complete package provides longer runtime, fast charging and versatile USB-C power delivery in one compact and protected design. Intelligent power management, locking cables and the option to use the headlamp without its internal battery make the power bank a practical accessory for prolonged use.
Recommended use: suitable for extending the runtime of the HM75R SUPERRAPTOR 3 headlamp and as a power bank for USB-C rechargeable equipment at work, on outdoor trips and during other prolonged use.
Product description updated 19 August 2026.
