Here are full details for the Tether Tools Relay Camera Coupler for Sony Cameras with NPâF / âSony L Seriesâ Battery (Model: CRCNPF) â specs, compatibility, advantages, and what to look out for.
Tether Tools Relay Camera Coupler â Sony NPâF âL Seriesâ (CRCNPF)
What It Is
This is a dummy battery coupler that replaces Sony NPâF (L Series) batteries in cameras or devices that use those battery packs. It is part of Tether Toolsâ Case Relay Camera Power System (CPS) / ONsite Relay ecosystem. The coupler itself does not contain a battery; it allows external power (via the Relay power unit or other 5âŻV USB sources) to feed the camera, enabling continuous power without swapping batteries.
Key Specifications
| Spec | Value / Comment |
|---|---|
| Model / SKU | CRCNPF Polyline Corp+2Tether Tools+2 |
| Battery Type Replaced | Sony NPâF / âL Seriesâ batteries Polyline Corp+2Tether Tools+2 |
| Cable Length (from coupler to its powerâinput end) | ~âŻ10 inches / ââŻ25.4 cm Polyline Corp+2B&H Photo Video+2 |
| Total Cable Run with Relay System | ~âŻ50 inches (~âŻ127 cm) when combined with the Relay / external cable run in the power system. Tether Tools+2Tanotis+2 |
| What It Contains | Coupler alone (one unit); sealed under Tether Tools 90âday warranty. Tether Tools+2B&H Photo Video+2 |
| Power System Required | Yes â must be used with the Case Relay / ONsite Relay Camera Power System to supply external 5V power. The coupler does not itself store power. Tether Tools+2Polyline Corp+2 |
Compatible Cameras / Devices
This coupler works with Sony (and other) devices that use the NPâF / L Series batteries. Some examples (but always check for your exact model) include:
Sony mirrorless / âL Seriesâ batteryâpowered cameras & gear that accept NPâF / L Series battery packs. Polyline Corp+2Tether Tools+2
Itâs also often used with monitors, video rigs, camcorders, LED lights or other accessories that accept NPâF batteries. The CRCNPF coupler lets such devices be powered by more universal USB power (via the Relay system). B&H Photo Video+1
What It Enables / Benefits
Continuous power: You no longer need to swap out NPâF batteries mid shoot for long video, LiveView, streaming, or timeâlapse work.
Hotâswap capability: Because the Relay system often has an internal buffer battery (UPS functionality), you can change external power sources (battery banks / adapters) without losing power to the camera. Tether Tools+1
Cost efficiency: Instead of carrying multiple NPâF battery packs, you can use standard USB battery banks or adapters with this setup.
Flexibility across gear: Useful if you already own the Relay power system; you can swap couplers for different camera brands, including Sony, Panasonic, etc.
Things to Watch Out For / Limitations
| Limitation / Risk | Details & What to Check |
|---|---|
| Battery door closure & cable routing | The dummy battery plus its cable must fit such that the cameraâs battery door can close cleanly, with the cable exiting via the cameraâs trapdoor or cable routing port, so thereâs no tension or risk of damage. Tether Tools+1 |
| No internal power in coupler | The coupler doesnât store power. If both the external source and any buffer in the Relay system are depleted, the camera will lose power. Plan accordingly. |
| Power draw | NPâF / L Series devices may draw considerable current (especially video mode). Use a sufficiently rated external power source and good cabling to avoid voltage drop or instability. |
| Heat / thermal behavior | Extended operation may generate heat; ensure good ventilation and avoid extreme ambient temperatures that could lead to shutdowns or reliability issues. |
| Compatibility check | Though itâs made for NPâF / L Series, some Sony models or accessories may have nonâstandard battery bay designs or internal components that need specific couplers. Always confirm your exact model is supported. |