Quote:
Originally Posted by Killer Python
how can it fry when 110 is running under what AUS can handle? the transformer should drop the volts and amps but check the amps! make sure its ok coz when u drop volts the amps will increadr hertz are speed rating of neg and pos so thats essentiial. i could see it fry as the amps will increase but the transformer should be fine
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I think you may be looking at this from a different perspective.
US appliances have an input voltage of 110V, AUS appliances have an input voltage of 240V.
If you take a device with an input voltage of 110V and plug it into a 240V power source, you are more than doubling the input voltage the device is rated to cope with.
In the case of a power tool battery charger (which this thread is about), the US chargers are designed to transform and rectify from 110V AC to 18V DC. The Aus chargers are designed to transform and rectify from 240V AC to 18V DC. In the case of power tool battery chargers, manufacturers fit a different transformer for the US market to the Aus market. The latest Li-On chargers and batteries have a lot of electronics packed into them which makes them sensitive to voltage.
There have been many cases where a US device has been plugged straight into an Australian power point and the device has gone up in smoke.
Back to the thread: If you buy a cordless power tool and charger from the US via Ebay or Amazon, you will need a 240v-110v power adapter.