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Small black plastic coupler shaped like a Canon LP-E12 battery with gold contacts

Tether Tools

Tether Tools Case Relay Camera Coupler CRCE15 for Canon LP-E12

SKU CH-X7W8-Y50X7

This coupler connects a Canon LP-E12 camera to the Case Relay system for continuous USB power

  • Uninterrupted shooting via external 5 V USB power
  • Single coupler replaces multiple proprietary LP-E12 batteries
  • Uses common 5 V power banks instead of dedicated chargers
  • Eliminates need to recharge camera batteries during long sessions
  • Requires separate Case Relay Camera Power System to operate

Power for Canon LP-E12 cameras

The Tether Tools Case Relay Camera Coupler CRCE15 connects Canon cameras that use an LP-E12 battery to the Case Relay Camera Power System. It is intended for photographers and videographers who need continuous power during long shoots without swapping internal batteries. The coupler replaces the standard battery inside the camera body.

Works with external 5V USB sources

When paired with the Case Relay Camera Power System, the coupler lets you run the camera from a standard 5V USB battery pack or wall adapter. This removes the need to buy multiple proprietary camera batteries and eliminates the charging cycle for internal cells. The Case Relay Camera Power System is sold separately and is required for operation.

Simple battery-port installation

Insert the coupler directly into the camera battery compartment and connect it to the Case Relay system. The only common issue is attempting to use the coupler without the separate Case Relay Camera Power System, which will not provide power on its own. Verify your specific Canon model is among the 11 supported options before purchasing.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $36.99
Pricier than about 82% of the 5,900 comparable items (median $17.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the CRCE15 coupler itself need replacement after extended use?

The coupler is a passive adapter with no internal cells; it lasts as long as the physical contacts remain intact.

What is the first limit reached when powering a Canon LP-E12 camera continuously through this coupler?

The 5 V USB source’s current capacity becomes the bottleneck before the coupler does.

Does the CRCE15 generate noticeable heat or noise during all-day operation?

No active components are inside the coupler, so it produces no fan noise and negligible heat.

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