Question about Uniden GMR648-2CK (22 Channels) 2-Way Radio

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Batteries don't hold charge

My uniden 2 way radio doesn't hold charge even after sitting on cradle all night

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This is frequently caused by corrosion on the battery contacts and the contacts inside the radio. Remove the batteries and wipe all the contacts firmly with a clean dry cloth. Heavy corrosion may require cleaning with a fine wire brush, steel wool. or sandpaper. After the cleaning, make sure that there is no residue in the battery compartment, then replace the batteries and give them a good charge. If this does not work, it may be time for new batteries -- especially if yours are more than a year old.

Bill B

Posted on May 05, 2010

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Posted on Jan 02, 2017

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Dropped it in the water


Hello Penny2,

It does not appear (based on the manufactuer's website) that the charging cradle for the Uniden GMR638 is compatible with any other radio models.

You may not be able to purchase another GMR638 if you only want a single radio to replace the one that was dropped. The current trend is for manufacturers to bundle consumer two-way radios in packs of two, three or four since most users do not purchase single radios.

If you definitely want to get the exact same model you might have to either purchase another two-pack or contact the manufacturer directly to see if they have single units available. Otherwise, any 22 channel FRS/GMRS combo radio should be able to communicate with your Uniden radios.

Best Regards,

Agent Ken
Go Ahead. Use Us.

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