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Bags, Cases & Straps:

Cables & Connectivity:

Uninterrupted Power Supply

The Tether Tools Case Relay Camera Power System (CPS) is used in conjunction with a Relay Camera Coupler (sold separately) to provide an uninterrupted power supply to your DSLR using a built-in 1200mAh lithium-ion rechargeable battery and a 5V DC mobile power pack (also sold separately). Once the attached USB power pack gets discharged, the internal battery keeps the system up and running not letting you stop suddenly, enabling you to hot swap another pack for uninterrupted shooting.

Supports AC Power

The Case Relay CPS also supports the AC power supply when used with USB wall power adapter (also sold separately). This additional capability allows you to continuously work without fear of running out of power for your camera.

Supports Most DSLRs

The Relay Camera Coupler allows you to use the Case Relay CPS with most DSLRs and mirrorless cameras from Canon, Nikon, Sony, Olympus, Panasonic and Fuji. To find your required camera coupler model, please visit the Tether Tools website.




1,200mAh, 7.4 V


5 VDC, 2 A (Type A USB)

Output Voltage

8 VDC, 2 A

* Specifications subject to change by the manufacturer without notice
  • 1 Case Relay Camera Power System
  • 1 Relay Adapter Kit (compatible with most Canon, Nikon, Sony and Panasonic DC Couplers)
  • Reviews

    * Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.