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Stay Powered ONsite

Stay powered onsite with the Tether Tools ONsite USB-C Battery Pack. This 25,600mAh battery can provide 1.3 recharges of a 13" MacBook Pro and other laptops, two recharges on an iPad Pro, and up to five recharges on smartphones. Quickly charge your USB-C compatible device, such as a laptop, and keep your work going.

When used with Tether Tools ONsite Relay Camera Power System and coupler (sold separately), the 150W battery will power a camera between 10-27 times as long as a normal battery. This is key when shooting tethered, as USB-C powering and tethering from the same port is not recommended. For tethered shoots, you can power your computer and camera from one single battery. When not tethering, this battery can charge your camera via its USB-C port.

Designed for mobility, this power bank is TSA/Airline-Compliant, and its sleek design slides into any backpack, camera, or computer bag. The battery takes approximately three hours from empty to charge and delivers pass-through charging so you can power your tech, while the battery is recharging.


  • Power laptops, phones, tablets, cameras, COB & LED lights, and more
  • Powers MacBook Pro and other laptops up to 1.3x charges
  • All-day power for up to three devices
  • Two USB-C PD ports and one USB-A Quick Charge 3.0 port
  • Recharges most devices in 60 minutes
  • Pass-through charging so you can power your devices while the battery recharges
  • Battery recharges in two hours
  • Travel-friendly, lightweight profile fits in backpacks and camera bags
1 x USB-C, Input/Output: 5 VDC at 3 A / 9 VDC at 3 A / 12 VDC at 3 A / 15 VDC at 3 A / 20 VDC at 5 A
1 x USB-C, Input/Output: 5 VDC at 3 A / 9 VDC at 3 A / 12 VDC at 2.25 A
1 x USB-A, Output: 5 VDC at 4.5 A / 4.5 VDC at 5 A / 9 VDC at 2 A / 12 VDC at 1.5 A
Included Cable
Cable Length
1' / 0.3 m
Fast Charging Technology
USB Power Delivery
Battery Capacity
25,600 mAh
Recharge Time
3 Hours
Dimensions (W x H x D)
17.8 x 7.6 x 2.5 cm
0.644 kg

* Specifications subject to change by the manufacturer without notice

  • Tether Tools ONsite USB-C Battery Pack - 25,600 Mah
  • USB-C Charging Cable (1')


* Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.