Motorola NLN8858 (MX/STX Charger) LED Blinking

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Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby MotoFAN » Sat Sep 05, 2009 9:45 am

Hi all!

What does mean Red/Green 'ping-pong' LED blinking?

It happens after few minutes of charging old MX300 battery.

http://www.youtube.com/v/vEGnzeicZBc

Something like 90% of charging? Or something else?

They will stop blinking? I.e. green will steady after charging complete?

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Re: Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby d119 » Sat Sep 05, 2009 11:38 am

Looks to me like either a bad battery or more likely a bad charger. Does it happen with multiple batteries?

That is not a standard thing for those chargers. If I recall correctly, you either get red or green, but nothing flashes and nothing does anything like that...
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Re: Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby MotoFAN » Sat Sep 05, 2009 11:54 am

d119 wrote:Looks to me like either a bad battery or more likely a bad charger. Does it happen with multiple batteries?

That is not a standard thing for those chargers. If I recall correctly, you either get red or green, but nothing flashes and nothing does anything like that...

I have only 1 battery.

After about 30-60 minutes of blinking, charger changed to red, and after about 20 minues of steady red, changed to steady green.
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Re: Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby Tom in D.C. » Sat Sep 05, 2009 12:28 pm

The probable cause/reason is one of these:

1. The battery was too hot when you put it in the charger, or...
2. The battery was too cold when you put it in the charger, or...
3. The battery was too near completely dead (run down) when you put it in the charger.
In any of these cases it takes the charger a while to get its electronic head screwed on straight.

Check the battery's voltage when the green light comes on. If the battery is a nominal 7.5 volts and you're reading something like 8.4 volts then you've gotten a full or nearly full charge into it.

Buy an additional battery. No one can have a comfortable existence when you own a Motorola portable with only one battery. You will spend most of your time when the radio is turned on wondering if and when it's going to quit on you.
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Re: Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby Rod Farva » Tue Sep 08, 2009 6:52 pm

The charger will flash the red light when the battery is bad...
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Re: Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby MotoFAN » Tue Sep 08, 2009 7:11 pm

Rod Farva wrote:The charger will flash the red light when the battery is bad...

Battery in working condition and holds charge.
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Re: Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby Rod Farva » Tue Sep 08, 2009 7:52 pm

check the battery contacts, one of the contacts senses the battery and the voltage, make sure that there is nothing messing with that contact, if you need another charger I have a pallet full of them....
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Re: Motorola NLN8858 (MX/STX Charger) LED Blinking

Postby MotoFAN » Tue Sep 08, 2009 9:15 pm

Rod Farva wrote:check the battery contacts, one of the contacts senses the battery and the voltage, make sure that there is nothing messing with that contact, if you need another charger I have a pallet full of them....

I will clear contacts and try. Thank you!
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