Question about Cobra electronics pr5000dx 15-mile range two-way radios- 2pk

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I have the Cobra PR5000. Haven't used in awhile so put in new batteries in both units , put in charger where red lights came on but went off. When I turn on the radios there is nothing and a blank

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Posted on Jan 02, 2017

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SOURCE: Cobra CB Radio 148 NW ST

The first thing to do is to check if your power wire actually has power to it. Do this with a test light or a multimeter. Given that the wire is powered, check to make sure your ground is good. Modern cars have so much plastic in them that grounds may be hard to find. The next step is to check the rig's fuse. Make sure the microphone is plugged in, too. If none of this helps, your radio needs repair or replacement.

Posted on Feb 17, 2008

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vrc_tech
  • 109 Answers

SOURCE: Batteries won't charge on new cobra 2VP 270 radios

If radios are brand new then I would take them back to the store for warranty exchange. The other opton is to vist a local radio service center and ask the tech to jump the battery. if the battery falls below a certain voltage it might need a quick jump sart from a power supply with a higher voltage normally 12 volts works well...

Posted on Aug 20, 2008

BillB-SA
  • 2761 Answers

SOURCE: I just put new batteries

The radios will work fine while being charged, but they will charge faster if turned off. Normal charging time is 8-10 hours, but I would recommend an overnight charge - they won't overcharge or be damaged by the longer charge time.

Bill B.

Posted on Nov 05, 2010

  • 33 Answers

SOURCE: I have a pair of

Your batteries may be bad. Sometimes over charging batteries will cause them to wear out.

Posted on May 05, 2011

Ironfist109
  • 3018 Answers

SOURCE: Just received my new cobra

  • Check that power cord up by the tip. It is possible it is a little loos in the tip (that hooks into the radio) Being new it almost has to be related to the power feed.
  • Make sure the fuse you are using is good. Use a 4 amp fuse in there.
  • Make sure you installed all the shoulder washers in your antenna properly or this will cause a short too.
  • Your power supply could be at fault too. Take a multimeter and turn it to DC volts and make sure 13.8 is coming out of it. The power supply could be failing under a load. Have you tried a quick setup in the car? See if sticking the power cord pos to pos and neg to neg on the car battery keeps the radio running better. You don't need to have the antenna hooked up for this just DO NOT key the mike. Just long enough to see if the radio stays on for more than 2 seconds.
  • If you do all this testing and the radio still cuts out then you have a defective unit and it needs to be replaced with a properly running unit.


  • Hope this helps and thank you for using FixYa.

Regards, Tony

Posted on Jun 19, 2011

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When I put the battery on the charger the light on the charger stays on for little awhile the it starts to blink, but when I try to use the battery it is not charged. So I am not sure if I need a new


Hi there! It sounds like you have our Linx stick vacuum or hand vacuum model. Plug only the charger into an outlet, the blue light on the charger should flash once. If the light on the charger flashes once then the charger is fine. Try resetting the battery by following these quick steps below.

1. Remove the battery from charger or cleaner
2. Unplug the charger
3. Insert the battery into the vacuum and turn the unit on for 30 seconds (even if it has no power)
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The light should be a solid blue, indicating the battery reset worked. If so, allow the battery to charge for 3-4 hours, completely deplete battery on your next use and re-charge. If the light on the charger is still blinking, your battery will need to be replaced. I have included a link where you may go to purchase a replacement battery if needed. Hope this helps!

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Cobra pr 3850wx bought new NiMh 800mAh 1.2v rechargable batteries now the base charger lights won't come on when i put the radios in it


  • A Cobra 3850wx Radio requires 4x600mAh NiMH 1.2V AAA Part # GA-3ANH rechargeable batteries.
  • Not just any AAA rechargeable battery will charge in the unit.
  • All will work in the radio but not all will charge inside the radio. It has to be a specific battery.
  • This is an example of what you need. GA-3ANH batteries which will charge inside your radio. http://www.tomsawyer2wayradios.com/catalog/item/3823249/5076887.htm
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As you know, solid red on your charger means that the battery is fully charged and the BLINKING red light means the battery is charging. Unless the light is blinking irradically everything is working the way it is supposed to. If the light is blinking irradically, the battery may just be too hot or too cold to charge ( like when you are driving many lags and your battery dies) and in this case simply wait 15 minutes to charge. If you get a fast blinking light still, the problem probably is with the battery.

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