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FlashFish E300 Portable Power Station
Written by Chris on January 3, 2022
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Review of the FlashFish E300

Updated on: 21 June 2023 

Review of the FlashFish E300

- At A Glance -


Super Portable

With a weight of just 6.4lbs, the FlashFish E300 is another light and highly portable power station.

330W of Power

The 300Wh Lithium-ion battery pack outputs 330W of continuous and 380W of peak (surge) power.

Touch Screen

An LCD screen displays vital information so you can monitor the condition and status of the E300.


330W of continuous portable power

The E300 is another offering from FlashFish designed to fulfill the needs of campers and anyone else who enjoys and wants to make the most the freedom of outdoor life offers.

It has a compact body measuring 8.23 x5.19 x7.56 inches, and is built to be light and easily carried when trekking or on a campsite. Homeowners may also appreciate the bright LED lighting during a blackout as they will be able to find their way around in the dark.

Outstanding battery safety and power saving technology

Th 300Wh lithium-ion battery is managed by a Battery Management System (BMS) which provides protection from:

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

And a fan is built-in to help ensure the unit remains within its operating temperature limits either when on charge or providing power to external devices.

When not connected to any devices the unit will switch off to save battery power.

Ways to recharge the E300

The E300 can be charged using at least three methods:

  • AC wall outlet
  • Solar panel(s) - (either 2x50W or 1x100W)
  • A 12V socket as found in a car

The time to recharge the E300 can vary due to location, temperature, and weather conditions. Generally, you should experience times of about:

  • 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 100W solar panel (comes with a 4 in 1 connector adapter kit)
FlashFish 100W Solar Panel

Control panel power outputs and input

The control panel is simple and functional. It has an LCD panel so you can keep a close eye on AC/DC input and output wattage and the state of the battery in terms of remaining time and charging status.

The outlets include:

FlashFish E330 Control Panel
  • 2x110V 330W (Peak 380W) AC Pure Sine Wave
  • 2xDC 12V~16.8V/168W Max
  • 1xUSB (5V/2.4A)
  • 2 Quick Charge 3.0 USB outputs (18W QC3.0, 5V/2.4A)
  • 1xDC 21.5 DC socket output (24V/3.8A Max) (12V/10A)
  • 1xDC Input/Solar Input (V/3.4A)
  • Solar Input: 18~24V - for 2x50W or just 1x100W Solar Panel(s)

Both of the 330W continuous AC outlets can withstand a momentary surge (peak) power of 380W, and their Pure Sine Wave output provides a safe and steady stream of power that won't harm any of your sensitive electronic devices.

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, a power station has the advantage of being silent in operation and don't present any problmes with carbon monoxide fumes.

For anyone living in an apartment, a portable power station could be a valuable possession by providing them with vital power during a power outage.

A great option for Adventurers

Owning a portable power stations can really enhance the enjoyment of adventurers and those of you who love hiking and camping because of their compact size, light weight, unrivalled portability and superb utility.

Times to Recharge

Three ways to recharge the E300, and with the FlashFish 100W Solar Panel you can have the potential for virtually limitless power on the road and away from the grid.

FlashFish E330 Charging Times
FlashFish E330 on the Trail

The Camper's Companion

Useful connections for all of your gear, including USB Quick Charge 3.0 ports and two AC 330W Pure Sine Wave outlets with a peak rating of 380W.

Power up to 9 Devices

For its size the E300 is a real workhorse, able to charge up to 9 devices at the same time within its overall power rating of 330W.

FlashFish E330 Power Capabilities

Here is the User Guide for this model.


Frequently Asked Questions

What can this device power?

The E300 is limited to a combined maximum of 330W using the AC outlets, and this limit should not be exceeded. You should always verify the wattage of any appliances prior to making any connection to prevent an overload condition shutting down the device.

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

Yes, the E300 can be used and charged at the same time, but the LCD will only show the charging status.

Can I use this as a UPS?

No, portable power stations cannot take the place of a dedicated UPS.

What Solar Panel can I use with this model?

Two FlashFish 50W Solar Panels in an array or one FlashFish 100W solar panel are recommended for the E300 to provide maximum recharge times.

Can I take this power station on a plane?

No, simply because of the potential for the Li-on battery to be volatile, plus the size exceeds what is normally permitted by the TSA for reasons of safety.

Is the unit really silent?

The only sound you are likely to hear is the cooling fan, but this is only audible when standing close by.

FlashFish E300 Manufacturer Specifications

ModelE300
Capacity300Wh (6000mAh)
Cell Chemistry:Lithium-ion Battery 18650 300Wh
AC Output:AC 330W/380W (Peak) Pure Sine Wave Output
Output Voltage110V
Car Output:12V, 10A
DC Input:19V/3.4A
SolarMax Input 100W 18/24V
DC Output12-16.8V/10A (max); 24V/3.8A (Max)
PD Type C Input/Output45W
USB Output2xUSB Q 3.0, 1x USB 5V/2.4A
Charging Time5-6 Hours (with 19V/3.4A Adapter)
RECHARGE METHODSAC Outlet, Solar, Car Adapter
Net/Gross Weight:6.4lbs (2.9kg) / 8.4lbs/3.8kg)
Dimensions (LxWxD) inches / mm:8.23 x5.19 x7.56 / 209 x 130 x 192
Operating Usage Temperature:14-104F (-10-40℃)
Life Cycle>800 Times
Warranty12 months
Article written by Chris

3 comments on “Review of the FlashFish E300”

    1. Very sorry to hear this. Jackery may have been a better choice. But I have added some final words in the review to reflect your disappointment and act as a warning to other buyers.

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