Description

The HDZero Rear-Mount Battery Case with SD Card Reader delivers intelligent, balanced power and seamless DVR offloading in one compact, rear-mounted solution for FPV goggles worldwide. Designed for universal 21700 cells, it features USB-C charging with continuous balancing, reverse polarity protection, and a built-in USB3.0 Micro SD reader, ensuring stable voltage, improved comfort, cleaner antenna alignment, and reliable performance for demanding pilots everywhere.

Features

• Universal 21700 Cell Support
  Install any reputable 21700 Li-ion cells. Choose the capacity and brand that work best in your country. Supports standard protected or unprotected 21700 cells.
• USB-C Charging with Built-In Balancer
  Charge the pack using any USB-C cable. No LiPo charger required. Internal electronics continuously balance the cells for long term safety and performance.
• High Speed Micro SD Card Reader
  Includes a USB3.0 Micro SD card reader built into the battery housing. Offload DVR footage quickly at the end of the day while the battery charges. Because the SD card travels with the battery, it is difficult to forget in your computer.
• Reverse Polarity Protection
  If the cells are installed backward, the Battery Case automatically disables output to protect your goggles and connected devices.
• Rear-Mount Strap Clips for Better Balance
  Mounts to the rear of your goggle head strap to counterbalance the weight of the goggles. Reduces forward tilt, improves comfort, and maintains ideal antenna orientation.
• Reliable Power Delivery
  More stable output than many USB-C power banks and correctly reports voltage to the goggles for accurate low voltage alarms.
• Compatible with All Major FPV Goggles
  Works with any headset that uses a 5.5 x 2.1 mm DC barrel jack, including HDZero, Walksnail, Skyzone, Orqa, and others.

Specifications

• Model: HDZ2170
• Battery Support: 2x 21700 Li-ion cells (user supplied)
• Voltage: 6.0 to 8.4 V (2S1P)
• Charging: USB-C 5V3A
• Cell Balancing: Continuous internal balancing
• Safety: Reverse polarity protection
• Micro SD Reader: USB3.0 high speed (>90 MB/s)
• Power Output: 5.5 x 2.1 mm DC barrel plug
• Weight: Approx. 73 g empty (depends on cell choice)
• Mounting: Integrated rear head-strap clips
• Compatibility: Any goggle with 5.5 x 2.1 mm DC barrel input including HDZero Goggle and BoxPro

Package Includes

• HDZero Battery Case (Global version, no batteries)
• Built-in USB3.0 Micro SD card reader
• Integrated rear-strap mounting clips
• Goggle strap shortening clips