Question about Uniden GMR325-2 (22 Channels) 2-Way Radio

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Incredibly bad battery life

I have a set of GMR325 and new alkaline batteries run out in about an hour of standby. They die in a few days of the radios being OFF.
I received the radios as a gift or they would be going back to the store.
Suggestions?

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  • Expert
  • 123 Answers

I think there is a problem send them back to store to replace under warranty

Posted on Nov 13, 2008

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My radio is not transmitting what could be wrong


When the batteries are reaching the end of their life or in need of charging the first thing that is likely to happen is that the unit will be weak when transmitting while receiving just fine. This is because it takes a lot more power from the batteries to transmit than to receive. Try a new set of batteries or if rechargeable then try charging the unit. With regard to regular batteries, make sure your batteries say "alkaline" on them somewhere since they will last much longer and also are more likely not to leak inside which can ruin your radio. Ignore labels on batteries that read "super heavy duty" or other such nonsense. Look for one and only one word "alkaline" on them and buy any brand you want to since cheap or expensive they are basically the same. Don't waste your money or risk your radio by using anything but alkaline batteries.

Hope this helps.

Dec 08, 2014 | Radio Communications

Tip

TalkAbout Distance Charging & Battery Options


The Motorola TalkAbout Distance and Distance DPS radios have a rechargeable NiCd battery pack (HNN9056 and/or HNN9044). Use of this battery pack is the best method for powering the radio. This type of battery pack has a 18-24 month life expectancy. You can determine the age of your battery from the date code on the back of the battery above the stop sign. The first digit is the year and the next two are the week of the year. Ex: 919 would read 2009 the 19th week.

The DPS model came with both a NiCd battery tray and an Alkaline battery tray. While the NiCd battery pack is the best option for fully powering your radio, along with being the most economical option, in a pinch or when charging is not available the 6 Alkaline batteries will power the radio for up to 18 hours. Note: Replacement battery trays are no longer available, it is advisable to keep both trays. If one fails, you will have the other as a backup.

The TalkAbout Distance is a repairable radio. The consumer replaceable parts are the NiCd battery pack, belt clip, antenna and charger.

on May 06, 2009 | Motorola Talkabout Distance DPS (10...

1 Answer

Every time I press the talk button the radios show low battery icon and I'm not able to transmit on either radio. How can I rectify this problem?


Hi,

Are you SURE that your batteries are up to snuff? I.E. when they have a light current load on them they are ok but as soon as you try to increase that current load they die off quickly. With two-way radios, the actual current drain depends on whether you are transmitting or in standby (receive) mode. Transmitting requires significantly more current than standby mode. So, I would look at what kind of batteries you are using. If they are a good name brand alkaline, check to see if they measure close to 1.5 volts with a voltmeter or check them with a battery tester to ensure they are good. If they are ni-cad or ni-mh rechargeable batteries, make sure they are rated at least 1200 mah (milliamp hour). I use Sanyo eneloop rechargeable batteries. They last a long time for me. One other thing, make sure your battery compartment is clean and there is no corrosion on the contacts the batteries are placed into.

Hope this helps,
Jim

Sep 08, 2014 | Uniden Radio Communications

1 Answer

My batterys only last 4 hours


25 hours is in standby only, not with receiving or transmitting, both draw much more current off the batteries

Jan 11, 2014 | Uniden GMR-325/2 2-Way Radio Walkie Talkie...

4 Answers

Cobra cxt195 won't charge


There is nothing wrong with your battery or your radio. you bought it a walmart at the lowest price available. this means you get what you pay for i.e. no frills the indicator flashing means it is connected to a power source and is charging / Maintaining the battery. it will only come on again when the battery is below 1/8th of the battery life and flash to let you know it needs to be charged again. there is no battery level indicator. these will work just fine but dont expect the 1-16 mile range they advertize unless you have full charge alkaline batteries and a direct line of sight to the one you are talking to.

Dec 12, 2013 | Radio Communications

1 Answer

Where can I get a new set of rechargable batteries for my cobra microtalk cxt275


The Cobra CXT275 radios can operate on any type of battery (Alkaline, Ni-Cad, NiHM). Each radio uses 4 AAA batteries. Only special rechargeable batteries can be recharged in the actual radio (see below)
If I remember correctly, they come from the factory with NiHM batteries rated at 300mAH. "mAH" stands for milli-Amphere-Hour and it represents the storage capacity of the battery. (The larger the mAH, the longer run time of the battery)

You have 2 options: A or B
Option A) Buy a set of Nickel-Metal Hydride AAA rechargeable batteries and a external battery charger. When the batteries die, pop them out of the radio, and charge them in the external charger. When they are recharged, pop them back in the radio.
Option B) If you want the ability to charge the batteries in the radio, using the "drop-in charger" then you will need modify the batteries so they can charge in the radio.
Follow these steps: You must be somewhat electrically inclined to do this...Note: By doing this you are going to void the warranty of the radio and new batteries that you just purchased.
1) Buy a set of Nickel-Metal Hydride AAA rechargeable batteries. You can probably find some rated at 600 mAH (this will extend the run time)
2) Looking at the back of the radio with the cover removed, there are 4 slots for batteries.
3) Looking at the battery slot on the far right, you should notice 2 contacts for the negative contact. The one on the bottom, is the contact for the radio to receive power from the battery. The one on the side (about 1/8" inch up from the bottom contact), is the contact for the charger to recharge the battery.
4) You will need to modify 1 battery for each radio. Somehow you need to bridge the bottom contact with the side recharge contact.
5) (look at the negative end of the cobra factory batteries and this should help you realize what you need to do) depending on the manufacturer of the new rechargeable batteries, you may be able to use an X-acto knife and remove 1/4" of the plastic wrapper from the bottom of the battery on the negative end. This should reveal the metal shell of the battery that can mate with the radio's side recharge contact.
If it does not, you need to find another way to have it mate with the bottom contact. You might be able to use some Aluminium Foil to bridge the bottom contact with the side recharge contact. Be sure the Aluminium Foil does not touch the positive contact of the battery to the left! You could have an electrical short!
6) Insert the Modified Battery into the right slot.
7) Insert the other 3 new batteries into the other slots. These do not have to be modified. Only the right most battery needs to be modified.
8) Drop the radio in the charger for the batteries to charge. The red LED on the charge base should come on. If it does not, then the side recharge contact is not making a good connection with the negative battery terminal.
9) If the red LED comes on, then the modification works. Let the batteries charge for 24 hours for their first initial charge.
10) When the batteries die after radio use, then charge them for about 12 - 16 hours in the drop-in charger. Do not let the radios sit in the charger for long periods of time. That can destroy the batteries. Take the radios out of the charger when the allotted time has passed.
11) If you hardly ever use your radios you will want to drop them in the charger for about 8 hours every 3 months. This will keep the batteries fresh without damaging them.
I hope this helps, Thomas (Electrical Engineer)

Feb 22, 2012 | Cobra Radio Communications

1 Answer

Walkie talkies model gmr325-2 ic;513C-UT914 HOW DO I GET THESE TO TRANSMIT, MY HUSBAND HAS CANCER AND WE NEED THEM IN OUR BEDROOMS AND WHEN I AM OUTSIDE, TK U, TK U


In order to get the most out of your new radio, read this reference guide completely before attempting to operate the radio.

Turning the Radio On and Adjusting the Volume

1) Press and hold the key to turn the radio ON.

2) To change the volume level press the volume/monitor up or down key to increase or decrease the volume level.

3) Press and hold the key to turn the radio OFF.

Adjusting the Sound (Key Beeps)

Your radio emits a beep each time one of the keys (except for the PTT button and call key) is pressed.
The sound of the Key Beep will increase or decrease depending on the volume level setting.

To turn OFF this beep:

Press and hold the call key while turning ON the radio.

To turn ON this beep:

Turn the radio OFF and ON again.

Choosing a Channel

Your GMR325-2 radio has 22 channels you can use to talk to others. In order to speak to someone,
each of you must be set to the same channel.

To choose a channel:

Press the channel/scan up or down key to increase or decrease the channel number displayed.

Channel Scan Feature

Your GMR325-2 radio has a channel Scan feature that allows you to easily Scan all 22 channels. When an active channel is detected, the unit will pause on that channel until the channel is clear. Then after a 2 second delay, the unit will continue scanning.

Pressing PTT button while the Scan is paused on a channel will allow you to transmit on that channel.

To turn ON channel scanning:

Press and hold either the channel/scan up or down key. The channel number on the display
will rapidly cycle through the channels.

To turn OFF channel scanning:

Press either the channel/scan up or down key.

Talking on Your Radio

To talk to others using the radio:
1) Press and hold the PTT button and speak in a clear, normal voice about 2-3 inches away from the microphone.

While you are transmitting the tx icon is displayed. To avoid cutting off the first part of your transmission, pause slightly after pressing the PTT button before you start talking.

2) When you are finished speaking, release the PTT button.You can now receive incoming calls. While receiving, the rx icon is displayed.

Transmitting a Call Alert Tone

Your GMR325-2 radio is equipped with a call tone that will be transmitted when the call key is pressed.

To transmit the call alert tone, press the call key.

The tone will automatically be transmitted for a fixed length of time.

Auto Squelch Feature

The GMR325-2 is equipped with an automatic squelch system which shuts off weak transmissions
and unwanted noise due to terrain conditions or if you have reached your range limit.

Monitor Mode Feature

Your GMR325-2 radio allows you to listen for weak signals on the current channel at the press of a key.

To turn ON monitor mode:

Press and hold the volume/monitor up or down key. The rx icon will blink.

To turn OFF monitor mode:

Press the volume/monitor up or down key. The rx icon will stop blinking.

Automatic Power Save Feature

Your GMR325-2 has a unique circuit designed to dramatically extend the life of the batteries. If there is neither transmission nor an incoming call within 2 seconds, your radio switches to the Power Save mode. The radio is still able to receive transmissions in this mode.

KEYLOCK ON/OFF

Press and hold the call key until the "L" appears. After 1 second, the LCD will return to the channel display.
To exit Keylock on mode, press and hold call again.

Note: While in keylock on mode, it will still receive transmissions.

ROGER BEEP

Roger Beep is a BEEP that is sent to notify the end of transmission.
Roger Beep can be heard through the speaker when Key Beep is on.
Roger Beep is transmitted even if key beep is turned off. However Roger Beep will not be heard from the speaker.

To turn OFF Roger Beep: Press and hold the channel/scan up Key while turning on the radio.

Jun 21, 2011 | Motorola Walkie Talkies 2-Way Radio

1 Answer

How to get the back off to renew batteries I need to put new batteries in the units and am unable to open the back to get the old batteries out


Press and slide the battery compartment door to remove it.

Need the operating instructions for your radios? You can download/print it here:

http://www.uniden.com/pdf/GMR325-2om.pdf

Bill B

Apr 29, 2010 | Uniden GMR-325/2 2-Way Radio Walkie Talkie...

1 Answer

Walkie talkie batteries don't last


The Batteries that Motorola uses will die after a while mainly because people leave them on the charger all of the time. But there is a way to refresh them. You let the battery die completely, then you charge it up for about 12 hours. Then you let the battery die completely. Do this a couple of times and the batteries will last long.
Also, Motorola use to make a battery refresher (or did when I worked there.) It will charge and drain the battery automatically. It will even give you a fault if the battery is completely dead. For the HT1000 (for example) it would be the WPPN4065BR.
For future reference, don't constantly charge a battery. Only have it on the charger when the battery is actually dead or very low. This will increase battery life.

Mar 25, 2010 | ICOM Informatique Icom IC-F11 5W 16ch VHF...

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