Pull the batteries out, slam them ******* a solid surface. put 'em in, let 'em charge. if that doesn't bring 'em back buy new bats.also, use a voltmeter to make sure the charger was getting voltage.
Good luck!
The rechargeable batteries supplied by Cobra have exposed metal on the bottom part of the side of each battery. This metal makes contact with the "rechargeable battery detector" contact in the battery bay.All that you have to do in order to make your new rechargeable batteries work correctly is to take a knife and carefully scrape away the plastic sleeve at the bottom of one of the four batteries, exposing the metal underneath.
Once you insert a battery with an exposed metal side into the left-most slot, then the Cobra radio will "think" that it has rechargeable batteries fitted, and will then allow recharging to take place.
The rechargeable batteries supplied by Cobra have exposed metal on the bottom part of the side of each battery. This metal makes contact with the "rechargeable battery detector" contact in the battery bay.All that you have to do in order to make your new rechargeable batteries work correctly is to take a knife and carefully scrape away the plastic sleeve at the bottom of one of the four batteries, exposing the metal underneath.
Once you insert a battery with an exposed metal side into the left-most slot, then the Cobra radio will "think" that it has rechargeable batteries fitted, and will then allow recharging to take place.
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vibration alert all the time
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