GOAL ZERO EXTREME UI 350 User Manual Download Page 1

Allows you to use AC plugs from 110-220V at 

400 Watts, as well as USB and 12V outputs.

1. Be sure to ACTIVATE YOUR WARRANTY at www.GOALZERO.com/warranty
2. Attach the EXTREME UI to the EXTREME 350 power pack via the red and black          
  plugs located on both the power pack and the UI.
3. Turn the EXTREME 350 power pack on.
4. Turn the EXTREME UI to on.
5. Ensure it is on the right voltage setting and plug in your device.

Get to Know Your Gear

Technical Specs

SECURE IT

POWER IT

The EXTREME UI snaps into the side of 

the EXTREME 350 power pack.

Make sure to flip the power switch to ‘on’ before use.

12V port 

6.0mm and female car adapter

 

11-13V, 10A max (120W)

USB port 

5V, 0.5A max (2.5W)

AC Multi-standard outlet 

110/ 220VAC, user switchable

 

400W max

 

 

12V port  

Powerpole or male car adapter

 

11-14V, 30A max (400W)

Outputs

Usage

Use with the following:

 

EXTREME 350  

Weight 

1.5 lbs (0.7 kg)

Dimensions 

8x6x2 in (20x15x5 cm)

Warranty 

12 months

Operating usage temp. 

32-104°F (0°-40°C)

General

USE IT

Getting Started

Inputs

How to Use Your Gear

Power switch

Push the rocker switch to the ON position to use the EXTREME UI with 
2 or 3 pronged devices.

Plug

The universal outlet accepts all common Western, European, and 
Asian plug types with a max of 400 Watts. It also helps to power 
USB and 12V DC products.

Voltage

A green light indicates which voltage (110 or 220) is selected. To 

change the voltage flick the switch found on the side of the UI 

(next to the On/Off switch).

Chain

The EXTREME UI is 

not

 a battery. It is meant for use with the 

EXTREME 350 power pack. To use it with EXTREME 350 

power packs that are chained together, plug it into the last 

power pack on a chain.

Cooling

There’s no need to worry about your EXTREME UI over-heating. 
It comes with a built-in fan to keep it cool.

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