how does everyone say this is the right adapter?..my FR-300 has the middle pin negative...this charger looks like it is reversed..

I have two Eton Model FR-300 radios and this adapter works just fine. I have used this for many months. I cannot speak for any other models. I would ask Eton directly.

just want to know where I can get a cell phone charger adapter for a Eton 300?

I suggest trying Wilson Eledtronics--they have almost everything for radios including cell phone connectors.

can anyone verify that that this is the right fr300 Eton adapter with a middle negative pin?

Apologies, I really dont remember. bcook@mcn.org

I just got this and it is 5V @ 1A. The radio's manual state the charger should be 4.5V @ 200ma or the battery will be damaged. What's your experience?

The original ETON Adapter Part Number GPU3504 was: 4.5 volts with the center pin being negative with a maximum current of 100 milliamps (0.1 amps). The 3.6 volt battery pack is three 1.2 volt Nickel-Metal-Hydride batteries in series. Nickel-Metal-Hydride batteries are very sensitive to being charged. The charging voltage for each cell must be between 1.2 and 1.6 volts. Therefore the maximum charging voltage for the battery pack is 4.8 volts. The manual says; IMPORTANT NOTE: If using an AC adapter rated higher than 200 milliamps, unplug the internal rechargeable battery to avoid damaging it. Later manuals had a Notice that the embossed 5 volts on the radio was wrong and should have been 4.5 volts!

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UpBright 4.5V AC/DC Adapter Compatible with ETON FR300 FR-300 FR-250 FR-350 FR-400 FR-405 FR-200 FR200G ARCFR300W ARC Crank Grundig Radio Traveler II G8 G8-ACA-US GPU3504 SY-05014 Power Supply Charger

UpBright 4.5V AC/DC Adapter Compatible with ETON FR300 FR-300 FR-250 FR-350 FR-400 FR-405 FR-200 FR200G ARCFR300W ARC Crank Grundig Radio Traveler II G8 G8-ACA-US GPU3504 SY-05014 Power Supply Charger

Product ID: 4718283

Details

Amperage
1 Amps
Brand
UPBRIGHT
Color
Black
Connector Type
Barrel
Included Components
1 x AC Adapter
Input Voltage
120 Volts (AC)

⚡1A max output current

🌍100-240V worldwide input

🛡️OVP, OCP, SCP multi-protection

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Description

🔌 Power your peace of mind with UpBright — the charger that’s always ready when you are!

ROBUST 1 AMP OUTPUT - Delivers reliable 4.5V DC power to keep your emergency radios charged and ready ⚡
TRUSTED WARRANTY SUPPORT - 30-day refund and 24-month exchange guarantee—because your gear deserves the best 🔄
ADVANCED SAFETY PROTECTIONS - Built-in over-voltage, over-current, and short-circuit safeguards for peace of mind 🛡️
PRECISION FIT BARREL CONNECTOR - 3.5mm middle negative pin ensures perfect compatibility—no guesswork needed 🎯
UNIVERSAL VOLTAGE COMPATIBILITY - Seamlessly powers your ETON & Grundig radios anywhere in the world 🌍

The UpBright 4.5V AC/DC Adapter is a globally compatible, safety-certified power supply designed specifically for ETON and Grundig emergency radios. Featuring a 1A output, 3.5mm middle negative barrel tip, and comprehensive protection against voltage and current faults, it ensures your essential communication devices stay charged and operational. Backed by a 30-day refund and 24-month exchange policy, this adapter is the reliable choice for professionals who demand readiness and durability.

Specifications

ASIN	B00DNGLS22
Amperage	1 A
Brand	UPBRIGHT
Built-In Media	1 x AC Adapter
Color	Black
Compatible Devices	ETON FR-300, ETON FR300, ETON FR-250, ETON FR-350, ETON FR-400, ETON FR-405, GRUNDIG FR-200, GRUNDIG FR200G, GRUNDIG FR-250, GRUNDIG FR-300, GRUNDIG FR-350, GRUNDIG FR-400, GRUNDIG FR-405, ETON Traveler II, ETON G8, ETON G8-ACA-US, ETON SY-05014, ETON FR200 FR200G, ETON FR300W, ETON ARCFR300W Compatible Devices ETON FR-300, ETON FR300, ETON FR-250, ETON FR-350, ETON FR-400, ETON FR-405, GRUNDIG FR-200, GRUNDIG FR200G, GRUNDIG FR-250, GRUNDIG FR-300, GRUNDIG FR-350, GRUNDIG FR-400, GRUNDIG FR-405, ETON Traveler II, ETON G8, ETON G8-ACA-US, ETON SY-05014, ETON FR200 FR200G, ETON FR300W, ETON ARCFR300W See more
Compatible Phone Models	ETON FR300 FR-300 FR-250 FR-350 FR-400 FR-405 FR-200 FR200G ARCFR300W ARC Crank Grundig Radio Traveler II G8 G8-ACA-US GPU3504 SY-05014 Compatible Phone Models ETON FR300 FR-300 FR-250 FR-350 FR-400 FR-405 FR-200 FR200G ARCFR300W ARC Crank Grundig Radio Traveler II G8 G8-ACA-US GPU3504 SY-05014 See more
Compatible Power Plug Type	Type C
Connectivity Technology	Powerline
Connector Type	Barrel Connector
Current	AC/DC
Current Rating	1 A
Customer Reviews	4.2 out of 5 stars 118 Reviews
Frequency Range	60 hertz
Included Components	1 x AC Adapter
Input Voltage	120 volts_of_alternating_current
Main Power Connector Type	2 Pin
Manufacturer	UpBright
Mfr Part Number	ETON FR-300 FR300 4.5V DC Power Supply
Model Number	ETON FR-300 FR300 4.5V DC Power Supply
Mounting Type	Wall Mount
Number of Items	1
Number of Power Levels	1
Output Current	1 A
Output Voltage	4.5 volts_of_direct_current
Power Plug	Type C
Power Source	Battery Powered
Special Feature	Short Circuit Protection
Special Features	Short Circuit Protection
Specification Met	CE
UPC	608415838319
Unit Count	1 Count
Warranty Description	Warranty: 30 Days Refund - 24 Months Exchange
Wattage	300 watts

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TrustScore 4.5 | 7,300+ reviews

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€ 29.86

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Italy.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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