HDZero Rear-Mount Battery Case for FPV Goggles - Universal 21700 Li-Ion Power Solution

Introduction

The HDZero Rear-Mount Battery Case is an intelligent, universal power solution for FPV goggles featuring a standard 5.5 x 2.1 mm DC input. This version is designed for international shipping simplification and allows you to use your preferred high-quality 21700 Li-Ion cells. It offers extended runtimes, convenient USB-C charging, automatic battery balancing, and a built-in high-speed Micro SD card reader for easy DVR data retrieval. The integrated rear clips provide superior comfort and balance by mounting the unit to the back of your goggles.

Key Advantages

• Universal 21700 Cell Support: Install any reputable 21700 Li-Ion cells, choosing capacity and brand that best suits your needs and region. Supports both protected and unprotected cells.
• USB-C Charging with Built-in Balancer: Charge the unit using any standard USB-C cable. No external LiPo charger is required. Internal electronics continuously balance the cells for long-term safety and performance.
• High-Speed Micro SD Card Reader: Features a built-in USB 3.0 Micro SD card reader for fast DVR footage downloads at the end of your flight session, doubling as a charging hub.
• Reverse Polarity Protection: Automatically cuts off output if cells are installed incorrectly, safeguarding your goggles and connected devices.
• Rear Mount Clips for Better Balance: Attaches to the rear of the goggle strap, counterbalancing the goggle weight, reducing forward tilt, enhancing comfort, and maintaining optimal antenna positioning.
• Reliable Power Output: Provides a more stable output than many USB-C power banks and correctly reports voltage to goggles for accurate low-voltage warnings.
• Extended Flight Times: When equipped with two 21700 batteries, this case significantly extends your operating time.
• Easy Data Retrieval: The integrated SD card reader allows quick offload of flight recordings while the battery charges.

Technical Specifications

• Model: HDZ2170
• Battery Support: 2 x 21700 Li-Ion cells (user-supplied)
• Voltage: 6.0V to 8.4V (2S1P)
• Charging: USB-C 5V 3A
• Cell Balancing: Continuous internal balancing
• Safety: Reverse polarity protection
• Micro SD Card Reader: High-speed USB 3.0 (>90 MB/s)
• Power Output: DC 5.5 x 2.1mm plug
• Weight: Approx. 73g (without batteries, depending on cell choice)
• Mounting: Integrated rear head strap clips
• Compatibility: Any goggles with DC 5.5 x 2.1mm input, including HDZero and BoxPro goggles

Applications

This battery case is ideal for FPV drone pilots engaged in racing, freestyle, cinematic flying, and long-duration flights. It's also suitable for professional UAV operations, aerial inspections, and any application requiring reliable, extended power for FPV goggles.

Compatibility

The HDZero Rear-Mount Battery Case is compatible with all major FPV goggles that utilize a standard 5.5 x 2.1mm DC input jack. This includes popular models such as HDZero, Walksnail, Skyzone, Orqa, and other compatible FPV systems. The integrated rear clips are designed to fit most standard goggle head straps.

FAQ

What type of batteries does the HDZero Rear-Mount Battery Case use?

This battery case is designed to work with two 21700 Li-Ion cells. You can choose your preferred brand and capacity, whether they are protected or unprotected cells, to best suit your needs. Batteries are not included with the case.

How do I charge the HDZero Rear-Mount Battery Case?

You can conveniently charge the battery case using any standard USB-C cable. It features a 5V 3A charging input. The internal electronics automatically balance the cells during charging, eliminating the need for an external LiPo charger.

What is the benefit of the rear-mount design?

The integrated rear clips allow you to mount the battery case to the back of your FPV goggle strap. This counterbalances the weight of the goggles, reducing forward tilt, improving comfort during long flights, and helping maintain optimal antenna positioning.

Does the HDZero Rear-Mount Battery Case include a Micro SD card reader?

Yes, it features a built-in high-speed USB 3.0 Micro SD card reader. This allows you to quickly download your DVR recordings at the end of the day while the battery is charging, ensuring your flight data is easily accessible.

Where can I buy the HDZero Rear-Mount Battery Case with fast delivery?

You can buy the HDZero Rear-Mount Battery Case directly from HTDRONE. We offer fast shipping within Poland and reliable delivery to Ukraine via Nova Poshta, as well as worldwide shipping via DHL. Check our store for the best deal.