The HDZero Rear-Mount Battery Case is a smart, universal power solution for FPV goggles that use a standard 5.5 x 2.1 mm DC barrel input. This case is designed to accommodate any high-quality 21700 Li-ion cells, and provides long runtime, USB-C charging, automatic cell balancing, and a built-in high-speed Micro SD card reader for convenient DVR offloading.

This bundle includes the HDZero Battery Case and two INR21700-50G Li-Ion Batteries

Check out everything HDZero  and our entire selection of Li-Ion cells and chargers!

Features

• Universal 21700 cell support
• USB-C charging with built-in balancer
• High-speed micro SD card reader
• Reverse polarity protection
• Rear-mount strap clips for better balance
• Compatible with all major FPV goggles

Specifications

HDZERO REAR-MOUNT BATTERY CASE

• Model: HDZ2170
  
• Battery Support: 2x 21700 Li-ion cells
  
• 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: ~ 73 g empty
  
• Mounting: Integrated rear head-strap clips
  
• Compatibility: Any goggle with 5.5 x 2.1 mm DC barrel input including
• HDZero Goggle and BoxPro
  

INR21700-50G 4900mAh LITHIUM-ION BATTERY

• Model: INR21700-50G
  
• Type: Lithium-ion Rechargeable Cell
  
• Nominal Capacity: 4900mAh (Standard Discharge at 0.2C)
  
• Rated Capacity: 4750mAh (Discharge at 1C)
  
• Nominal Voltage: 3.63V
  
• Charging Voltage: 4.2V
  
• Charging Method: CC-CV (Constant Current with Limited Voltage)
  
• Standard Charge Current: 0.5C (2450mA)
  
• Max. Charge Current: 1C (4900mA)
  
• Max. Discharge Current:
  
• Continuous: 9.8A (2C),
  
• Pulse: 14.7A (3C, not continuous)
  
• Discharge Cut-off Voltage: 2.5V
  
• Cell Weight: Maximum 72.5g
  
• Cell Diameter: 21.5mm
  
• Cell Length: 70.85mm
  
• Operating Temperature:
  
• Charging: 0°C to 45°C
  
• Discharging: -20°C to 60°C

Includes

HDZero Rear-Mount Battery Case

• 1x HDZero Battery Case
• 2x Goggle strap shortening clips

INR21700-50G 4900mAh Lithium-Ion Battery

• 2x INR21700-50G 4900mAh Lithium-Ion Battery