HDZero Rear-Mount Battery Case with SD Card Reader

The HDZero Battery Case is a rear-mount power solution built for FPV pilots who want reliable runtime, better goggle balance, and fast DVR offloading in one clean package.

Load two standard 21700 Li-ion cells (not included), plug in a USB-C cable, and the onboard balancer handles the rest — no LiPo charger needed. A built-in USB 3.0 Micro SD card reader (90+ MB/s) lets you offload footage quickly at the end of the day, and since the card travels with the battery, you'll never leave it in your laptop again.

Key Features:

• Supports any reputable 21700 Li-ion cells — choose your brand and capacity
• USB-C charging (5V/3A) with continuous internal cell balancing
• Built-in USB 3.0 Micro SD reader for fast DVR offloading
• Reverse polarity protection — safe even if cells are inserted incorrectly
• Rear head-strap clips for improved balance and comfort
• Compatible with HDZero, Walksnail, Skyzone, Orqa, and any goggle with a 5.5×2.1mm DC barrel input

Global version — batteries not included to simplify shipping.