Note: This listed battery is Round-Hole Version (Red wire is on the right)
2/3AA600 3.6V 600mAh Ni-MH Battery Pack, fits Eton FRX3 Earlier Round-Hole Verson

For the Eton FRX3 Weather Radios, because FRX3 produced in different year uses different battery (different on connector type), So please kindly compare the connector of your original old battery before placing the order.
If your original battery is Round-Hole Verson (Red wire is on the right), Please choose Battery Pack.

If the connector Red/Black wires is oppsite(Positive and negative polarity is opposite), it don't fit either.

Ni-MH 2/3AA600mAh 3.6V Battery Pack, Also Compatible with Kaito Weather Alert Radio KA500 KA550 KA600 Voyager Radios Eton-Grundig FR200 FR250 FR300 FR350 FR370 FR400 FR405 FR600

Compatible with the following listed radio models:
Kaito
Kaito KA500 5-way Weather Alert Radio
Kaito KA550 5-Way Powered AM/FM Shortwave
Kaito Voyager Pro KA600 KA600L Voyager Radios

Eton-Grundig
FR200 FR200G FR250 FR300 FR350 FR370 FR400 FR405 FR600 FR600B

PLEASE NOTE: for the Eton FRX3 Eton FRX3+ FR360 Radios and the Kaito Weather Alert Radio KA500 KA550 KA600 Voyager Radios, because the radio produced in different year designed with different connector. So please compare with your original battery connector then choose the right replacement. Thanks!