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Case Relay
EXTERNAL POWER SYSTEM
USER MANUAL
CRUPS110
www.TetherTools.com
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The Case Relay External Power System (EPS) lets you power your
camera continually with an external battery pack, providing peace
of mind knowing you have an uninterrupted power source for your
camera.
If you’re shooting and power gets low on the primary external battery
power bank, simply swap out the power bank. Your camera will not
turn o. Power will continue to flow to your camera with the Case
Relay EPS internal 1200mAh battery. Utilizing a wall outlet or external
power banks, you could theoretically shoot forever with uninterrupted
consistent power.
USAGE STEPS
Step 1: Find the correct Relay Camera Coupler for your specific
camera at www.TetherTools.com/Relay then click on the Shop by
Camera section to find the compatible coupler.
Step 2: Plug the Case Relay EPS into the Relay Camera Coupler (sold
separately).
Step 3: Plug the Case Relay EPS USB port into an external power
bank or wall charger. Note: 5V, 2A external power bank or 2.4A USB
wall charger is required to power Case Relay EPS.
Step 4: Insert the Relay Camera Coupler into your camera.
Step 5: Turn on your camera, and enjoy the peace of mind knowing
you have an uninterrupted power source for your camera.
Step 6: Monitor your primary external power bank throughout the
shoot. The Case Relay EPS battery will show a Red indicator light
when power is low. Swap out external power banks as needed.
Note: Case Relay EPS secondary internal 1200mAh battery is as large
as many regular camera batteries and can support shooting and all
camera features while swapping out primary external battery banks.
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LED INDICATORS
The LED light on Relay has three colors (green, yellow and red) to
indicate the battery power level:
Green light: power storage is FULL.
Yellow light: power storage is MEDIUM.
Red light: power storage is LOW.
If light is OFF, Relay EPS is o or in sleep mode.
Please note: When plugged into a primary power source, the light
will always be stable. If the LED light begins to flicker, it is a reminder
to check the primary power source status; power source may have
become disconnected, entered sleep mode or is low on power.
SUPPORTED CAMERAS
To see a full list of supported cameras visit
www.Tethertools.com/Relay.
REQUIRED ACCESSORIES
1. A DC Camera Coupler* for your specific camera model is required.
Tether Tools versions and compatibility guide are available at www.
TetherTools.com/Relay
2. A 5V, 2A external power bank or 2.4A USB wall charger is
also required.
• Tether Tools versions:
Tether Tools Rock Solid External Battery Pack
10,000 mAh (RSBP10)
Tether Tools Rock Solid Dual USB Wall Adapter (RSUWA)
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SPECIFICATIONS
• Input: DC 5V 2A (Type A USB)
• Output: DC 8V Max 2A
• Capacity: 1200mAh 7.4V
• This product contains an internal lithium battery.
WARNING AND CAUTIONS
• Do not puncture, throw, drop bend or modify this product.
• Do not throw this product into fire or water.
• Do not short-circuit the battery with lead or any metal objects.
• Do not allow children to play with the Case Relay EPS.
• Recycle according to local recycling and environmental regulations.
*CASE RELAY ADAPTERS
If you’ve previously purchased a camera coupler to use with your
camera, an adapter kit is included with Case Relay EPS and may be
needed. If you’re using a Tether Tools Relay Camera Coupler, no
adapter is required.
ADDITIONAL RECOMMENDED ACCESSORIES
LoPro Phone Utility Mounting Kit (RSLPMKT)
Tether Tools Cable Organization Case (TTPCC)
StrapMoore (SSMRST)
CASE Relay is designed and manufactured by CheeringTech
and distributed by Tether Tools.
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