Here are the full specs and professional overview of the Tether Tools Relay Camera Coupler for Canon Cameras with LP‑E10 Battery (Model CRCE10), part of the Case Relay / ONsite Relay system. Let me know if you want marketing copy or a comparison with similar couplers.
Tether Tools Relay Camera Coupler (LP‑E10 / CRCE10)
What It Is
The CRCE10 is a dummy battery (coupler) that fits into the battery chamber of Canon cameras using the LP‑E10 battery. When used together with the Case Relay / ONsite Relay Camera Power System, it enables continuous external power to the camera (instead of using internal LP‑E10 batteries). It does not contain a battery itself; it simply routes power from an external source.
Key Features
Feature | Description / Benefit |
---|---|
Battery Replacement | Replaces the LP‑E10 battery in compatible Canon cameras, allowing external power input. B&H Photo Video+3Tether Tools+3Filmtools+3 |
Continuous, Hot‑Swap Power | Works with the Relay power system’s internal buffer/UPS, so external power sources (USB power bank or AC adapter) can be changed without powering down the camera. Tether Tools+2B&H Photo Video+2 |
Cable Routing | The battery door of the camera should fully close, with the coupler cable running out through the rubber trapdoor or cable port to protect against connection strain. Tether Tools+1 |
Non‑proprietary Power Sources | Lets you use any suitably rated 5 V USB power bank or external supply rather than relying on expensive LP‑E10 batteries. Tether Tools+2Filmtools+2 |
Technical Specifications
Spec | Value / Detail |
---|---|
Model | CRCE10 Tether Tools+2Filmtools+2 |
Compatible Battery Type | Canon LP‑E10 Tether Tools+2Polyline+2 |
Compatible Camera Models | EOS Rebel T5, T3, also other Canon cameras using LP‑E10 battery standard. tethertools.ca+3B&H Photo Video+3rubbermonkey.com.au+3 |
Cable Length (to the coupler) | ~ 10 inches (≈ 25.4 cm) from the coupler to its cable interface. B&H Photo Video+2Polyline+2 |
Total Length with Relay Cable | With the Relay cable, total run is ~ 50″ (≈ 127 cm) from external power source to camera via the coupler. Tether Tools+1 |
Power Handling | It does not provide power storage; the external power input and Relay power system take care of power delivery. Tether Tools+1 |
Warranty | Covered by a 90‑day limited warranty. Tether Tools+1 |
Advantages
Prolonged shooting: Ideal for long sessions (time‑lapses, video, live preview) without needing to swap LP‑E10 batteries.
Cost‑effectiveness: Reduces the need to stock multiple LP‑E10 batteries; uses common external USB power sources.
Hot‑swap flexibility: Thanks to Relay’s internal buffer battery, you can swap external power banks without camera shutdown.
Reduced downtime: No pauses to change batteries or worry about battery drain mid‑shoot.

Limitations & Considerations
Because it’s just a dummy battery, if external power fails and there is no buffer battery in the Relay unit, camera will lose power.
Must ensure the camera battery door closes fully (and cable exits through rubber/trap door) to avoid damage or strain on the cable.
The cable routing and quality matter: poor quality or sharp bends may degrade connection reliability.
Must be used with the Case Relay / ONsite Relay system — buying the coupler alone doesn’t make the camera self‑powered; the power system must be in place.
Confirm compatibility: even among LP‑E10 cameras, camera firmware or model differences may affect how power is drawn; ensure your model is on the supported camera list. tethertools.ca+2Filmtools+2
If you like, I can write this as a marketing‑grade product description for web/catalog or compare this coupler’s performance vs alternatives for LP‑E10.