Relay Camera Coupler

Relay Camera Couplers work in tandem with the Case Relay Camera Power System to keep your camera powered continually with an external 5V USB battery pack or wall power. The Relay Coupler is simply an insert for your camera battery cavity that enables powering the camera via Case Relay Camera Power System. The coupler does not contain a battery or hold a charge.

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Infinite Power for Your Camera

The Relay Camera Coupler combined with the Case Relay Camera Power System provides constant, uninterruptable power for your camera and is perfect for time-lapse photography, photo booths, video production and power-hungry LiveView shooting or any long day on the set. Need more power? Hot swap in another power bank and continue shooting while never losing power to your camera.

How Does it Work?


Simply insert the Relay Camera Coupler directly into the camera battery port, attach it to the Case Relay CPS and power your camera with the included Rock Solid External Battery Pack or an AC power source using an USB to AC wall adapter or use the ONsite D-Tap Battery with V-Mount. Because Case Relay also has its own secondary internal 1200 mAh battery, if your external battery runs low you can easily hot swap the external battery and not lose power to the camera.

  • Insert Relay Camera Coupler into camera battery cavity
  • Completely close battery door allowing coupler cable to exit through the rubber trapdoor
  • Battery door must be completely closed for the Case Relay Camera Power System to properly function

Relay Camera Coupler & Relay CPS Benefits:

  • More cost effective than purchasing multiple proprietary camera batteries
  • Power sources are non-proprietary. Power your camera with the same 5V battery you use to charge phones or tablets.
  • Never need to charge camera batteries again. And never run out power.
  • Compatible with most Canon, Nikon, Sony, Panasonic, Fujifilm, and Olympus cameras. Check to confirm your camera model is supported.
  • A Case Relay Camera Power System (sold separately) is required to use the Relay Camera Coupler.

Suggested Uses:

  • Pair the Relay Camera Coupler with the Case Relay Camera Power System to provide constant, uninterruptable power for your camera

Product Specifications:

  • Relay Coupler is simply an insert for your camera battery cavity that enables powering the camera via Case Relay Camera Power System. The coupler does not contain a battery or hold a charge.
  • Coupler cable is 10″ (25.4cm) – Coupler cable with Relay cable is 50″ (127cm)

FAQ, Instructions and Product Manual

Find Your Relay Camera Coupler

Relay Camera Couplers from Tether Tools work in tandem with the ONsite Relay C and ONsite Relay A to keep your camera powered continually with an external USB battery pack, D-Tap battery, or wall power.

Chart of compatible cameras and couplers

Relay Camera Coupler Compatible Manufacturer Battery Compatible Cameras
CRC400 Canon Battery BP-511A Canon D30, D60, 10D, 20D, 30D, 40D, 50D, 5D
CRCE5 Canon Battery LP-E5 Canon 450D/XSi/EOS Kiss X2, 500D/T1i/EOS Kiss X3, EOS 1000D/EOS Rebel XS/EOS Kiss F
CRCE6 Canon Battery LP-E6 Canon EOS 5D, 5D II, 5D III, 5D Mark IV, 6D, EOS 6D Mark II, 7D, 7D II, 60D, 70D, 80D, 5Ds, 5DsR, EOS R, XC10, XC15
CRCE8 Canon Battery LP-E8 Canon 550D/T2i/EOS Kiss X4, 600D/T3i/EOS Kiss X5, 650D/T4i/EOS Kiss X6i, 700D/T5i/EOS Kiss X7i
CRCE10 Canon Battery LP-E10 Canon 1100D/T3/EOS Kiss X50, 1200D/T5/EOS Kiss X70, EOS 1300D/EOS Rebel T6/EOS Kiss X80, EOS 4000D/EOS Rebel T100, EOS1500D, EOS 2000D/EOS Rebel T7/EOS Kiss X90, EOS 3000D
CRCE12 Canon Battery LP-E12 EOS M, EOS M10, EOS M100, EOS M50, EOS Kiss M
CRCE15 Canon Battery LP-E12 Canon 100D/EOS Rebel SL1/EOS Kiss X7
CRCE17 Canon Battery LP-E17 Canon EOS M3, EOS M5, EOS M6
CRCE18 Canon Battery LP-E17 Canon EOS 750D/EOS Rebel T6i/EOS Kiss X8i, EOS 760D/EOS Rebel T6s/8000D, EOS 800D/EOS Rebel T7i/EOS Kiss X9i, EOS 77D/EOS 9000D, EOS 200D/EOS Rebel SL2/EOS Kiss X9, EOS RP
CRFW235 FujiFilm Battery NP-W235 FujiFilm GFX 100s, X-T4
CRW126 FujiFilm Battery NP-W126 FujiFilm X-Pro1, X-Pro2, X-A1, X-A2, X-A3, X-A5, X-A10, X-A20, X-E1, X-E2, X-E2S, X-E3, X-H1, X-M1, X-T1, X-T2, X-T3, X-T10, X-T20, X-T30, X-T100, X100F
CRN5 Nikon Battery EN-EL9a Nikon D3000, D5000, D40, D40x, D60
CRN5A Nikon Battery EN-EL14A Nikon D3100, D3200, D3300, D3400, D3500, D5100, D5200, D5300, D5500, D5600, Df
CRN5B Nikon Battery EN-EL15 Nikon 1v1, D500, D600, D610, D750, D800, D800E, D810, D850, D810A, D7000, D7100, D7200, D7500, Z 7
CRN5B-C Nikon Battery EN-EL15c Nikon Z 5, Z 6
CRN5C Nikon Battery EN-EL24 Nikon DL24-500 f/2.8-5.6, 1 AW1, 1 J1, 1 J2, 1 J3, 1 S1, 1V3, J5,
CRN5D Nikon Battery EN-EL21 Nikon 1 V2
CRN5E Nikon Battery EN-EL22 Nikon 1 J4, 1 S2
CRN5F Nikon Battery EN-EL24 Nikon 1 J5
CRBLH-1 Olympus Battery BLH-1 Olympus OM-D E-M1 Mark II
CRBLN-1 Olympus Battery BLN-1 Olympus OM-D E-M1, OM-D E-M1X, OM-D E-M5 Mark II, OM-D E-M5, E-P5, PEN EP-5, PEN-F
CRPBLB13 Panasonic Battery DMW-BLB13 Panasonic LUMIX DMC-G1, DMC-G2, DMC-GF1, DMC-GH1, DMC-G10
CRPBLC12 Panasonic Lumix Battery DMW-BLC12 Panasonic LUMIX DMC-GH2, DMC-GH2H, DMC-G5, DMC-G6, DMC-G7, DMC-G8, DMC-G80, DMC-G81, DMC-G85, DMC-FZ200, DMC-FZ300, DMC-FZ300GK, DMC-FZ1000, DMC-GX8, DMC-GX8H
CRPBLD10 Panasonic Battery DMW-BLD10 Panasonic LUMIX DMC-G3, DMC-GX1, DMC-GF2
CRPBLE9 Panasonic Battery DMW-BLG10 Panasonic LUMIX DMC-F3K, DMC-GF3, DMC-GF5, DMC-GF6, DMC-S6K, DMC-GX7, DMC-G70, DMC-GX7MK2, DMC-GX7MK3, DMC-GX80, DMC-GX85, DMC-GX9
CRPBLF19 Panasonic Battery DMW-BLF19 Panasonic LUMIX DMC-GH3, DMC-GH4, DMC-GH4R, DC-GH5, DC-GH5s, DC-G9, DC-G9Pro
CRPBLH7 Panasonic Battery DMW-AC10 Panasonic LUMIX DC-GF10, DC-GF90, DC-GX800, DC-GX850, DMC-GM1, DMC-GM5, DMC-GF7, DMC-GF8, DMC-GF9
CRL200 CRL200 for Sony CCD/DCR/DSC/HDR/PXW Sony CCD-TRV138, CCD-TRV338, DCR-DVD103, DCR-DVD105e, DCR-DVD106e, DCR-DVD108e, DCR-DVD109e, DCR-DVD203, DCR-DVD205e, DCR-DVD304e, DCR-DVD305e, DCR-DVD306e, DCR-DVD308e, DCR-DVD403, DCR-DVD406e, DCR-DVD408e, DCR-DVD506e, DCR-DVD508e, DCR-DVD510e, DCR-DVD605e, DCR-DVD608e, DCR-DVD7, DCR-DVD705e, DCR-DVD708e, DCR-DVD755e, DCR-DVD808e, DCR-DVD908e, DCR-DVD910e, DCR-DVD92, DCR-DVD92E, DCR-HC1000, DCR-HC1000E, DCR-HC16E, DCR-HC17E, DCR-HC18E, DCR-HC19E, DCR-HC20, DCR-HC20E, DCR-HC21, DCR-HC22E, DCR-HC23e, DCR-HC24e, DCR-HC26e, DCR-HC27e, DCR-HC28e, DCR-HC30E, DCR-HC30e, DCR-HC32, DCR-HC32E, DCR-HC36e (Dock), DCR-HC35e, DCR-HC37E, DCR-HC38E, DCR-HC39E, DCR-HC40, DCR-HC40E, DCR-HC42, DCR-HC42E, DCR-HC44e (Dock), DCR-HC46e (Dock), DCR-HC47E, DCR-HC5, DCR-HC51, DCR-HC51E, DCR-HC52, DCR-HC52E, DCR-HC53, DCR-HC53E, DCR-HC54, DCR-HC54e, DCR-HC62, DCR-HC62e, DCR-HC65, DCR-HC7, DCR-HC85, DCR-HC85E, DCR-HC90, DCR-HC90E, DCR-HC94e (Dock), DCR-HC96e (Dock), DCR-IP1, DCR-IP1E, DCR-IP210E, DCR-IP220, DCR-IP220E, DCR-IP45E, DCR-IP5, DCR-IP55, DCR-IP55E, DCR-IP5E, DCR-IP7BT, DCR-IP7E, DCR-PC1000e, DCR-PC106E, DCR-PC107E, DCR-PC108E, DCR-PC109, DCR-PC109E, DCR-PC350, DCR-PC350E, DCR-PC53E, DCR-PC55/B, DCR-PC55/R, DCR-PC55/S, DCR-PC55/W, DCR-PC55E, DCR-SR-32e, DCR-SR190, DCR-SR190e, DCR-SR200, DCR-SR200e, DCR-SR210, DCR-SR210e, DCR-SR220, DCR-SR220e, DCR-SR290, DCR-SR290e, DCR-SR30, DCR-SR300, DCR-SR300e, DCR-SR30e, DCR-SR32, DCR-SR33, DCR-SR33e, DCR-SR35, DCR-SR35e, DCR-SR36, DCR-SR36e, DCR-SR42, DCR-SR42e, DCR-SR45, DCR-SR45e, DCR-SR46, DCR-SR46e, DCR-SR50, DCR-SR50e, DCR-SR52, DCR-SR52e, DCR-SR62, DCR-SR62e, DCR-SR70, DCR-SR70e, DCR-SR72, DCR-SR72e, DCR-SR82, DCR-SR82e, DCR-SR90, DCR-SR90e, DCR-TRV280, DCR-TRV480, DSC-HX1, HDR-HC5, HDR-HC5e, HDR-HC7, HDR-HC7e, HDR-SR10e, HDR-SR11, HDR-SR11E, HDR-SR12, HDR-SR12E, HDR-SR5E, HDR-SR7E, HDR-SR8E, PXW-X70
NOTE: This is a cable, not a coupler. It will plug directly into the camera.
CRNPFZ100 Sony Battery NP-FZ100 Sony a1, a6600, a7 III, a7 IV, a7C, a7R III, a7R IIIa, a7R IV, a7R IVa, a7R V, a7S III, a9, a9 II, FX3
CRPW10AM Sony Battery NP-FM500H Sony a57, a58, a65, a68, a77, a77 II, a99, a99 II
NOTE: This is a cable, not a coupler. It will plug directly into the camera.
CRSFW50 Sony Battery NP-FW50 Sony a7, a7 II, a7R, a7R II, a7S, a7S II, a3000, a3500, a5000, a5100, a6000, a6100, a6300, a6400, a6500, A5, a33, a35, a37, a55, DSC-RX10, DSC-RX10 II, DSC-RX10 III, DSC-RX10M4, NEX-3, NEX-3N, NEX-5, NEX-5N, NEX-5R, NEX-5T, NEX-6, NEX-7, NEX-C3, NEX-F3, QX1, ZV-E10
CRCNPF Sony NP-F L Series Devices
CRN5C Nikon Battery EN-EL24 Blackmagic Pocket Cinema Camera

What’s Included:

  • One (1) Relay Camera Coupler