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I think I reversed polarity and now my charger won't work. How can I fix this?

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OOPS usually when a person does that it's time to bite the bullet and buy a new unit

Posted on Apr 04, 2015

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Not sure what you wanted to charge, but with reversed polarity most of the time the device connected, will be "dead". It could be you destroyed the battery(s) When that is all, a new battery(s) should solve the problem. Only when the reversion, caused a shortage, that could have blown a fuse. When you connected a camera or another device, it could be that or the internal battery is defect.

Posted on Apr 04, 2015

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If polarity detector is showing that there is no neutral earth bond it may not be a bug but a feature, as standard the EU10i would not have an earth neutral bond.

Otherwise I can not see why your detector thinks there is a polarity reversal.

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think I would **** it and see ....if the replacement charger has a charge light it will probably not light if you have reversed polarity. Had the same problem with VHF portables ...I just cut the wire on new charger and tried both options ..reconnected and a bit of tape...voila.
There is little danger to your drill from getting it wrong as long as a the timing is relatively short.

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I need a power cord for this phone and i plugged in another power cord to see if it would work and it popped and some smoke came out of the hole where the charger plugs into , do you think i could have...


Hello,
Yes, the polarity of the charger you used was probably wrong for the phone. The power circuit is probably fried. It would cost nearly as much to fix that as it would be to get a new phone.
Always make sure to check charge polarity and voltage before plugging chargers into just any devices. Some will work, but as you found in this case, some don't and can do substantial damage.
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I cant get my power chair jet 3 to charge batteries are good


Hi valentin 201
I have owned my own business for 3 years and have been working on scooters and powerchairs for 15 years. . In the future give as much info about the scooter as possible.

1. load test the batteries even if you think they are good, check anyway. Sometimes even new batteries won't hold a charge.

2. Your charger on the powerchair must have enough volts to open the charger inhibitor. That is, the charger won't even start up if your batteries are low. Both batteries need to have at least 20-22 vdc.

3. Some chargers have a 3amp fuse check that and repace if needed.

4. With a multi meter set on dc200 check your batteries. Red on one battery and black on the other. Check to see what you get for voltage. If no voltage reverse the lead wire to the other posts. Once you get a reading of 20+ volts watch the meter and plug in the charger, it should increase the volts on the meter. if not the charger is bad, replace. Charger should be 24-31 volts to be a good charger.)

One of these sugestions will fix the problem

Good Luck
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