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APEX IMPRES 2 batteries flashing red and wont charge

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ordym31

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Looking for help before I contact Motorola. I have 40 Impres 2 Batteries for APX series radios that will flash red in the chargers that are brand new but sat on the shelf for 3 years before being put in use and wont take a charge. Is there a way to recondition them or are they dead for good? Thanks
 

KevinC

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Have you tried placing a battery in the charger, immediately lift it out then dropping it back in?
 

IAmSixNine

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Sitting on a shelf for 3 years, more likely they have gone low voltage and need to be recovered.
Let them sit over night or 24 hours if possible. If that fails they may need to go back to Moto or you could try a voltage bump.
Back in the NiCad days we would take old batteries like that (Jedi series mainly) and use 12 volt about half an amp and try to manually bump the voltage. Probably not a good idea with Impress but if its a last resort and not going back to Moto then worth a shot.
 

ResQguy

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Sitting on a shelf for 3 years, more likely they have gone low voltage and need to be recovered.
Let them sit over night or 24 hours if possible. If that fails they may need to go back to Moto or you could try a voltage bump.
Back in the NiCad days we would take old batteries like that (Jedi series mainly) and use 12 volt about half an amp and try to manually bump the voltage. Probably not a good idea with Impress but if its a last resort and not going back to Moto then worth a shot.

If they are 3 years old, they are a year out of Impres2 warranty
 

Anderegg

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I have a 2015 XPR battery that was left off the charger for a couple of years, but when left abandoned, it only had a dozen or so charges on it. It still had enough juice to run the radio for a few hours, but I got that same flashing red light now and no way to charge, not even orange light mode works. Is there a way to cover one of the gold charger contacts to make these dumb batteries and maybe force a charge into them? No suggesting that for the 40 new Impres 2 batteries, but for others maybe?

Paul
 

4-crime

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What type of charger are you using to try to charge these? I know On the single unit impres 2 chargers you have to flip to recondition switch on the bottom in order to recondition the battery.
 

ordym31

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Are you charging them in an Impres 2 charger?
NNTN7079A Single charger, WPLN4114 Single charger with insert, WPLN4127 multi charger with inserts. It's not all of them out of 120 batteries maybe failure of 25% that won't take a charge at all. Just Flash red.
 

4-crime

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That may be your issue. You probably need to use impres 2 chargers to get them back to life. Not saying that’s definitely the issue, but wouldn’t surprise me if that was.
 

K2NEC

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I agree. I don't think Impres 2 batteries will work 100% in non-impres 2 chargers
 

GTR8000

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IMPRES 2 batteries are backwards compatible with existing IMPRES chargers. If they weren't, ordym31's failure rate for initializing these NOS IMPRES 2 batteries would be 100%, not 25%. ;)

That being said, it certainly would not hurt to buy an IMPRES 2 charger and give it a shot with the stubborn batteries. Also make sure to clean the battery contacts with a pencil eraser, even if they look clean to the naked eye.
 
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