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Today I finally got my garage and I plugged in my mobile charger. I saw the charger the AC Alert was red flasing and the other LED was green. Took the charger into the house and there both were green. Looking in the manual, the problem seems to be "AC is out of range". What does this mean. In the Europe 240V are 240V. Sorry I don't know but isn't in the USA 110V everywhere?
 

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michaelCA said:
Today I finally got my garage and I plugged in my mobile charger. I saw the charger the AC Alert was red flasing and the other LED was green. Took the charger into the house and there both were green. Looking in the manual, the problem seems to be "AC is out of range". What does this mean. In the Europe 240V are 240V. Sorry I don't know but isn't in the USA 110V everywhere?
No, in fact they're not!

The nominal "correct" voltage in the US is 117 VAC RMS and an "acceptable" value, although standards vary from state to state, is about +/- 7 volts from that. See http://www.powerstandards.com/tutorials/VoltageRegulation.php for details.

Equipment like the EVSE convenience charger should be built to be able to work with supplies in the acceptable range, but if your utility company has not been keeping the equipment up to date and checked, or if there is a problem within the wiring at your dwelling, it's possible for the voltage to fall outside this range. Both under- and over-voltage situations can cause equipment to fail (e.g., vacuum cleaner motors may burn out). Spikes up or down can also be a problem. Some utility providers are better than others.

Power line monitoring equipment can be bought or rented. Here are two examples (I have no idea whether these are any good and whether their prices are reasonable, they're just examples of power line monitors): http://www.powertronics.com/, http://www.omega.com/pptst/OM-PQR1010.html. Long ago I used one on a college campus, to show to the campus physical plant people that there was a problem. Depending on your utility, they may fix problems that you report, or you might have to threaten them with legal action and/or get your state utility regulator to work on them. :D
 
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