Question about Maxon GMRS50 (16 Channels) 2-Way Radio

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Radio will not stay charged. Battery replaced. Problem persits.

The radio works fine for several minutes. Then it starts to beep and stops working.

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Does it look like the charger is working?

Batteries have a life of 1-5 years depending on how they are used. Check ebay for a new set of batteries.

Posted on Jan 23, 2009

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2 Answers

Can't transmit signal. Only get a 2 second beep when I push the transmit button


You have a poorly charged or bad battery. It takes more power to transmit than to receive. Usually the first thing you lose with a low, bad or poorly charged battery is transmit.

Try a known good battery in the radio. This should solve the problem. If not, check your battery contacts, as you may have one which is bad or not making good contact.

Clean your contacts with a pencil eraser to assure good connection with the charger.

Best regards.

Mar 18, 2014 | Kenwood Radio TK 260 360 270 370 2100 3100...

1 Answer

I put in a new battery and now the radio beeps when it is keyed up. I put the old battery back in and it works fine. Both batteries fully charged. Any suggestions?


A beep when keyed up can mean a low battery.
1) It is possible your new battery did not take its initial charge, it can take as many as 3 chargings to 'jump start' a new battery. You might try charging the battery an addition 2 full charge cycles.
2) Try the new battery in another SP50 radio to see if it works, or test with a volt meter, if available.
3) Double check the battery is the correct HNN9018 or equivalent NiCd battery. If you are using an after-market battery, check to see if it is a NiCd. If it is a NiMH battery you will need a fast rate charger to charge it up. (On an SP50 the fast rate charger has a blue button on the tray which needs pressed to put it in fast charge mode)
4) This may sound silly, but check to see you installed the battery the correct way. On a Motorola battery the STOP sign would not be visible when installed correctly.
5) If all these items do not solve the 'new battery' problem, you should return the battery to the place of purchase for an exchange.

Best regards.

Sep 17, 2011 | Motorola For SP50 7.5v 1500mAh NiCd...

1 Answer

I have a motorola rdv2020 and after a few minutes stops transmitting. You can see the recieving light come on with the other radio, but no voice is coming through. After shutting it off for a few minutes...


It is possibly a bad or poorly charged battery. Try a known good battery and see if the problem persists. When a battery is failing the first indication is usually loss of transmit. It takes more power to transmit than to receive.

If the battery appears to be the problem, check your charger to see that it is working properly and clean your battery contacts with a pencil eraser prior to giving it a full charge. Then try the original battery one more time. If it still fails, replace it.

If after testing the radio with a known good battery you still have a problem. It is likely your radio is in need of repair. Flat rate repair is available for this type of radio. (Currently running $85.) Or if your radio is less than one year old, contact the vendor where you purchased the radio for warranty procedures.

Best regards.

Mar 16, 2011 | Motorola Mobility RDV2020 RDX Series On...

1 Answer

Battery fully charged, unit works fine when warm. When in the cold for 15 minutes or more it stops receiving and when you try to transmit the screen cycles on and off and it just clicks like it's...


You don't mention how cold. It is possible you are beyond the temperature limits for the radio. However, if you feel you are not, it might be a battery problem. Check the date code on your battery. If it is more than 2 years old, it likely will not hold up when placed under a load and needs replaced. Try a battery from a known good radio and see if you have the same problem. If it corrects the problem, replace your battery. Otherwise, take your radio to a service facility to have it diagnosised.

Best regards.

Jan 30, 2011 | Motorola Radio Communications

1 Answer

When pushing the push to talk button either on the radio or the headset cord I get a loud beep over the speaker and the radio won't transmit. I have replaced batteries, reprogramed unit still no fix. Any...


Two thoughts, I know you've replaced the batteries, but this can be a sign of a low, bad or weak battery. You might check your charger to see that the light is coming on and staying on during charging. Also, be certain the radio is shut off during charging.

Secondly, be certain when using any audio device the radio is shut off when plugging in the audio device. And the device is designed to go with the radio you are using it with.

Troubleshooting thoughts: 1) Try a battery directly out of a working radio to see if the problem stops. If the problem persists, you have a radio or device problem. 2) Try the radio without the audio device, with a known good battery. If you still have a problem, you have a radio problem. 3) Try your audio device on a known good radio. If there is no problem, your audio accessory is okay.

Best regards.

Oct 19, 2010 | Motorola CLS 1110 (1 Channel) 2-Way Radio

1 Answer

The radio is not charging has new battery


Check your battery contacts on/in the radio, battery and charger. Clean with a pencil eraser if needed. If your charger will accommodate the battery alone, try charging the battery outside the radio. Does the charger's light (if any) come on and stay on when the battery/radio is attached? If so, your charger is working properly. If the light (if any) on the charger is flashing you may have a shorted or bad battery. Check your user guide to the radio/charger for more information. Finally, periodically a battery has too low of an initial factory charger to start charging on the charge immediately. Try placing the battery on the charger for 3 complete charge cycles, and see if it will then charge. If the battery is new, you might want to contact the vendor for a replacement.

Aug 22, 2009 | Yaesu Radio Communications

1 Answer

I work for a hotel and we have about 6 2 way


Here are some things to check:
1) Clean your battery contacts with a pencil eraser. (Both on the radio and charger)
2) Check the date code of the "new" batteries and see if they are less than 2 years old. (3-digit number usually with the first number being the year, the next two the week of the year. ex: 927 would be 2009 the 27th week)
3) The radios must be turned off when on the charger.
4) If using drop-in chargers try charging the battery alone in the charger.
5) Are all the chargers lights blinking? This can be a sign of a bad charger, shorted battery or wrong battery. You mentioned recently replacing them, are they the same chemistry as the previous batteries?

You did not mention the type of radio, so we cannot be more specific in our troubleshooting, but this should get you started. The beeping you are experiencing is most-likely the low battery beep. Your batteries are not getting charged. The above questions should help you narrow down the problem. If you need more assistance post another question and we'll try to help further.

Jul 28, 2009 | Motorola Radio Communications

2 Answers

Kenwood th - 79E playing up


Charger should be able to power the radio at 'EL' level, if NOTHNG happens, I'd say charger is on the blink.

Mar 05, 2009 | Kenwood ProTalk XLS TK-3131 (15 Channels)...

2 Answers

GP 360 Radio Charger


On a Motorola charger, when the battery is charging the light should be a constant red (or amber depending on the charger). When the charge cycle is complete the light will change to solid green. Sometimes the solid green time is brief, as the battery will begin to lose charge, and the charger will go back into trickle mode and change once again to red (or amber). In most cases, a flashing light indicates a problem, such as a bad or shorted battery, an incorrectly seated battery, dirty battery contacts, or a bad connection with the battery. (Note: Batteries last 18-24 months typically. Check your date code for the age of the battery.)

There were several chargers made for the GP360, including but not limited to a 60-minute charger, a 90-minute charger, a 10-hour trickle charger and a 6-unit gang charger which would be a rapid rate, either 60- or 90- minute. If you would supply your charger's model number we could tell you which one you have.

Nov 02, 2008 | Motorola HNN9628A Two-way Radio Battery

4 Answers

ICOM IC-F11


Bad battery, Buy new one on ebay. Carl

May 17, 2007 | ICOM Informatique Icom IC-F11 5W 16ch VHF...

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