SKU: 97070485353

HDZero Rear-Mount Battery Case with SD Card Reader with 2 x Samsung 21700 5000mAh battery cells

Sale price$53.99 Regular price$59.99
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Ships within 48 hours · Estimated delivery Sep 26 - Oct 1

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Description

HDZero Rear-Mount Battery Case with SD Card Reader with 2 x Samsung 21700 5000mAh battery cellsThe HDZero Battery Case is the ideal power solution for HDZero Goggle, BoxPro Goggle, and any FPV headset that uses a standard 5. 5 x 2. 1 mm barrel jack. Built around two premium Samsung 21700 cells, this smart 2S pack delivers long runtime, USB C charging, automatic cell balancing, a built in high speed Micro SD card reader, and integrated safety protections. Mount it to the rear of the goggle head strap using the integrated clips to counterbalance

The HDZero Battery Case is the ideal power solution for HDZero Goggle, BoxPro Goggle, and any FPV headset that uses a standard 5.5 x 2.1 mm barrel jack. Built around two premium Samsung 21700 cells, this smart 2S pack delivers long runtime, USB-C charging, automatic cell balancing, a built-in high speed Micro SD card reader, and integrated safety protections.

Mount it to the rear of the goggle head strap using the integrated clips to counterbalance the weight of your goggles. This improves comfort and maintains better antenna orientation during flight.

Check out all our Goggles Collection and the rest of our HDZero compatible products.

Features:

  • Long Runtime Power
    2S1P 5000mAh pack built from high quality Samsung 21700 cells. Provides about 3 hours of runtime on HDZero Goggle or BoxPro Goggle.
  • USB-C Charging and Built-In Balancer
    Charge with any USB-C cable. No special LiPo charger required. The pack continuously balances cells for long term safety and performance.
  • Integrated High Speed Micro SD Card Reader
    Built-in USB3.0 Micro SD card reader (>90 MB/sec). Offload DVR footage easily while the pack charges. The SD card travels with the battery so you will not forget it in your PC.
  • Reverse Polarity Protection
    If cells are installed backward, the battery case automatically disables output to protect your goggles and equipment.
  • Comfortable Rear Mount Design
    Integrated head-strap clips allow the battery to mount on the back of the goggles. This balances the weight, reduces neck strain, and improves antenna orientation.
  • Reliable Power Delivery
    More consistent output than many USB-C power banks. Reports correct voltage to the goggles for accurate low voltage alarms.
  • Universal Compatibility
    Works with any FPV goggle using a 5.5 x 2.1 mm DC barrel input (HDZero, Walksnail, Skyzone, Orqa, and others).

 

Specifications:

  • Model / SKU: HDZ2170
  • Battery: 6.0 to 8.4 V (2S1P) 5000mAh
  • Cells: Samsung 21700 5000mAh (x2)
  • Runtime: ~3 hours (HDZero Mode: 2.5hr, Analog Mode 3.5hr)
  • Weight: 212 g with cells, 73 g empty
  • Charging: USB-C
  • Balancing: Continuous internal cell 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
  • Mounting: Rear head-strap clips integrated into case
  • Compatibility: Goggles using 5.5 x 2.1 mm DC barrel input including HDZero Goggle and BoxPro


Package Includes: 

  • HDZero Battery Case
  • 2 x Samsung 21700 5000mAh battery cells
  • Built-in USB3.0 Micro SD card reader
  • Integrated rear-strap mounting clips
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97070485353

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4.6 ★★★★★
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OBG
Port Orchard, US
★★★★★ 3
One size definitely doesn’t fit. Otherwise Ok.
Color: Black
OSFM - one size fits most. It should be OSFS - one size fits small/some. Measured my head size and according to their chart I’m l/XL. This cap is tight fitting and gives you a headache after an hour. Otherwise it’s fine. Keeps your head cool, is absorbent and works well under a helmet.
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Reviewed in the United States on November 21, 2025
G
Verified Purchase
GET SOME!
Carnegie, US
★★★★★ 5
Feels refreshing on the head…
Color: Black
I purchased a few of these on UA application. However, when I decided to put some more the UA app was out of stock. I love the skull caps!! I use them for the gym and for work. They’re very comfortable and outstanding if you’re in a hot environment, sweat a lot or just want to be cooler. They haven’t slipped at all and it’s great value for what I spent! So far I have seven in total. I may purchase three more shortly before summer hits that way I can use one at the gym and one at work per day and don’t have to worry about doing my laundry just to have clean skull caps.
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Reviewed in the United States on February 2, 2026
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
The perfect sock!
Size: 6-10, Color: Halo Gray/Assorted
The only socks that I can wear with my hey dudes. They stay on my ankles and never slid down into the shoe. I will forever order these as long as they are available. They are comfy too!
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Reviewed in the United States on August 21, 2025
R
Verified Purchase
Ryan S
Houston, US
★★★★★ 5
Good option, especially in warmer weather
Size: 6-10, Color: Black
High quality socks and very durable. Nice touch adding the grip on the back of the ankle so the sock stays up. Size is a true fit to the size of your foot as well.
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Reviewed in the United States on April 17, 2025
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Patricia
Chelsea, US
★★★★★ 5
Love these socks!
Size: 6-10, Color: White
Comfortable, no show, and most importantly The Do No Slip!!!! I keep coming back to add to my supply because they have become the only sock I wear. I’ve been using them for a couple years now and they hold to great to washing, bleaching and the dryer. Highly recommended.
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Reviewed in the United States on July 24, 2024

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