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2010-12-18
, 12:02
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Posts: 1,258 |
Thanked: 672 times |
Joined on Mar 2009
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#12
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That is probably one of the most misguided and unclear things I've read about electricity in a long time. AC doesn't need any stronger conductors than DC, if anything it's the opposite...
Both DC and AC need two conductors. The powergrid is grounded to the earth, so anything with a low resistance path to ground can serve as one conductor.
As for danger, it's all about current through your body, and that depends on the voltage. For a given voltage, AC is probably more dangerous. The battery's 3 - 4.2V poses no electrocution danger.
The danger in the above case of the battery is not that you'd electrocute yourself, the danger is when using uninsulated wires that you'll accidentally let them touch eachother, which will lead to a short circuit, which can make the battery explode.
As for dapenzerg the lower voltage of 5.2V (compared to Nokia chargers' 6V or so) and the lower current of 500mA is probably what helped. The reason it reboots with a crap battery is that the hardware can't regulate the charge current low enough, which results in overvoltage on the battery. which makes the charger software abort, which makes dsme reboot the device.
Both DC and AC need two conductors. The powergrid is grounded to the earth, so anything with a low resistance path to ground can serve as one conductor.
As for danger, it's all about current through your body, and that depends on the voltage. For a given voltage, AC is probably more dangerous. The battery's 3 - 4.2V poses no electrocution danger.
The danger in the above case of the battery is not that you'd electrocute yourself, the danger is when using uninsulated wires that you'll accidentally let them touch eachother, which will lead to a short circuit, which can make the battery explode.
As for dapenzerg the lower voltage of 5.2V (compared to Nokia chargers' 6V or so) and the lower current of 500mA is probably what helped. The reason it reboots with a crap battery is that the hardware can't regulate the charge current low enough, which results in overvoltage on the battery. which makes the charger software abort, which makes dsme reboot the device.
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2010-12-18
, 14:27
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Posts: 131 |
Thanked: 36 times |
Joined on Dec 2009
@ Spain
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#13
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shadowjk my N800 and N810 old chargers were 5V, and I did the opposite to your method, that is I increased the voltage.
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2010-12-20
, 06:50
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Posts: 1,258 |
Thanked: 672 times |
Joined on Mar 2009
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#14
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A N810 will actually reject 5.00V. it accepts 4.2V - 4.8V and 5.2V - 10V or so, with varying current profiles (a 10V 1A charger is rejected but 10V 0.1A might be accepted).
The dc adapters are labeled 5V, but they actually give out somewhere between 5.2 and 8V. 5.8-6 is the most common I've seen.
The dc adapters are labeled 5V, but they actually give out somewhere between 5.2 and 8V. 5.8-6 is the most common I've seen.
| The Following User Says Thank You to shadowjk For This Useful Post: | ||
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2010-12-23
, 14:02
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Posts: 131 |
Thanked: 36 times |
Joined on Dec 2009
@ Spain
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#15
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Good info, I will check my chargers with a voltimeter, because I was trusting in the labeled voltage.
How do you check the output voltage? when the charger is connected to the Nokia device?
How do you check the output voltage? when the charger is connected to the Nokia device?
Originally Posted by shadowjk
A N810 will actually reject 5.00V. it accepts 4.2V - 4.8V and 5.2V - 10V or so, with varying current profiles (a 10V 1A charger is rejected but 10V 0.1A might be accepted).
The dc adapters are labeled 5V, but they actually give out somewhere between 5.2 and 8V. 5.8-6 is the most common I've seen.
AC currents should be safe when touch as they would need a strong conductor and need a direct connection to their reversed side... + to - while direct currents should shock you as long as you have at least a conduction to it... Like power outlet to your homes and your grounded to the soil or any other conductive materials.