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FlashFishG300 Portable Power Station

Written by Chris on January 2, 2022


Review of the FlashFish G300

Updated on: 29 November 2023 

– At A Glance –

Super Portable

Weighing just 5.73lbs, it’s one of the lightest portable power stations around.

300W of Power

The 222Wh Lithium-ion battery outputs 300W continuous and 350W peak.

Durable Build

Metal sides make it one of the more durable models available on the market.

300W of portable power protected by a metal case for increased durability

The FlashFish G300 offers potential buyers long-lasting power for all sorts of outdoor and recreational activities. With its case made of silver-colored metal sides and plastic ends, it’s designed to improve its durability and better handle the rough and tumble of the outdoors. Measuring just 9.76×3.38×5.94 inches and weighing a miserly 5.73lbs you’ll have no problem at all taking it with you on any of your outdoor adventures.

And in the home, a portable power station is an essential item to have on hand when the grid goes out and you’re left with no power at all.

Excellent battery management offering more safety

This model has three 30000mAh lithium-ion battery cells managed by a Battery Management System (BMS) which provides protection from:

  • Short-circuit
  • Over-current
  • Over-charging
  • Low-voltage
  • Over-heating

It’s also equipped with a fan to help ensure the unit remains within its operating temperature limits.

Recharging the power station

The G300 can be charged in up to three ways: AC wall outlet, solar panel, and a car’s 12V socket. Although Recharging time can vary depending on a number of factors including location, temperature and weather, as a general guide you can expect recharging of around:

  • 5-6 hours to fully recharge from an AC wall outlet (60W AC adapter included),
  • 6-7 hours from a 12V/24V car port
  • 6-7 hours using a FlashFish 50W or FlashFish 60W solar panel (paid links)
FlashFish 50W Solar Panel
FlashFish 60W Solar Panel

Power outputs and input

Despite its diminutive dimensions this FlashFish model is equipped with some useful outlets, which include:

  • 2x110V 300W (Peak 350W) AC Pure Sine Wave
  • 1xUSB (5V/2.4A)
  • 2 Quick Charge 3.0 USB outputs (18W QC3.0, 5V/2.4A)
  • 1xCigarette lighter socket output (12V/10A)
  • Input: 5.5×2.1mm DC, 15V/4A

The two 300W continuous AC outlets have a momentary surge (peak) rating of 350W. And you won’t need to be concerned about damaging any of of the sensitive components in your electronic equipment, such as CPAPs and laptops, as the power station’s AC outlets produce a Pure Sine Wave output similar to that which you are used to from you wall outlets at home.

Eco-friendly clean indoor and outdoor power

While gas-powered portable generators have an important, and sometimes vital, role to play in the lives of many people who have limited or no access to grid power, it’s always a pleasure to be able at times to forget their noise and potentially dangerous fumes. And this is where portable power stations can step forward to supplement a portable generator when power needs are not so great. It might also be the only option for people who live in apartments and for obvious reasons are prohibited from using a portable generator.

But portable power stations really come into their own when hiking and camping due in most part to their relative light weight and unrivalled portability.

Versatile Recharging

Three methods to recharge the G300, and with either the FlashFish 50W or the FlashFish 60W Solar Panels (paid links) you have the potential for virtually limitless power on the go.

FlashFish G300 3 Way Recharge
FlashFish G300 Connections

Connection Ports

Useful connections, including a USB Quick Charge 3.0 port and two AC 300W Pure Sine Wave outlets with a momentary peak power rating of 350W.

Power Durations

As can be seen, the G300 presents you with an impressive set of numbers in terms of power possibilities for such a small unit.

FlashFish G300 Power Capability

Here is the User Guide for this model.

Frequently Asked Questions

What can this device power?

The G300 has a combined maximum of 300W on the AC outlets. This limit should not be exceeded. Always verify the wattage of any appliance before making the connection.

Can I use the power station while it is on charge?

According to the manufacturer, you cannot use this power station while it is on charge.

Can I use this as a UPS?


What Solar Panel can I use with this model?

There is a 15~24V input specifically for Solar Panels. Both the FlashFish 50W and FlashFish 60W Solar Panels are suitable for the G300.

Can I take this power station on a plane?

No, the Li-on battery size exceeds that permitted by the TSA for safety reasons.

Is the unit really silent?

The unit has a cooling fan that is only really audible when standing very close to it.

FlashFish G300 Manufacturer Specifications

Capacity222Wh (6000mAh)
Cell Chemistry:Lithium-ion Battery 18650
AC Output:AC 300W/350W (Peak) Pure Sine Wave Output
Output Voltage110V
Car Output:12V, 10A
DC Input:15V/4A
SolarMax Input 60W
DC Output9-12V/10A (Max)
USB Output2xUSB Q 3.0, 1x USB 5V/2.4A
Charging Times
AC Wall Outlet 15V/4A Adapter5-6 Hours
12V/24V Car Port6-7 Hours
FlashFish 50W or 60W Solar Panels6-7 Hours
Recharge MethodsAC Outlet, Solar, Car Adapter
Net/Gross Weight:5.7lbs (2.6kg) / 7.2lbs/3.25kg)
Dimensions (LxWxD) mm:248 x 86 x 151
Operating Usage Temperature:14-104F (-10-40℃)
Life Cycle>800 Times
Warranty12 months
Article written by Chris

2 comments on “Review of the FlashFish G300”

  1. I have one. It’s 2 years old and won’t recharge. I’m using the wall adapter. What is the life expectancy of this flashfish? How can I recharge it? Thanks for any advice you can give.

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