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Quick Question on laptop charging

Blogs > Wala.Revolution
Post a Reply
Wala.Revolution
Profile Blog Joined November 2006
7582 Posts
November 16 2009 08:25 GMT
#1
I have a Korean laptop with a 220v charger. Can I just use a 220v-110v adapter or do I need a transformer?

This is the adapter I have

+ Show Spoiler +
[image loading]


I also have a transformer but you can just use any right? It seems to puny.

Sorry for asking such trivial question but I want to make sure because I don't want to break my laptop.

Stuck.
kOre
Profile Blog Joined April 2009
Canada3642 Posts
Last Edited: 2009-11-16 08:30:39
November 16 2009 08:28 GMT
#2
Korean laptop + 220V outlet = computer lasts 2 hours

Korean laptop + adapter from 220V to 110V = computer lasts 1 hour

When you go back to Korea and charge the laptop from a 220V outlet it'll go back to lasting 2 hours.
http://www.starcraftmecca.net - Founder
Wala.Revolution
Profile Blog Joined November 2006
7582 Posts
November 16 2009 08:58 GMT
#3
On November 16 2009 17:28 kOre wrote:
Korean laptop + 220V outlet = computer lasts 2 hours

Korean laptop + adapter from 220V to 110V = computer lasts 1 hour

When you go back to Korea and charge the laptop from a 220V outlet it'll go back to lasting 2 hours.


Err, this didn't answer my question, but does it mean that if I charge it to full in US it will last as half as long as when I charge it in Korea, or duration is 1/2 when I just charge it for a set amount of time. (I'm guessing the latter).
Stuck.
deconduo
Profile Blog Joined January 2008
Ireland4122 Posts
November 16 2009 09:16 GMT
#4
Yeah going down voltages is fine, it will just take twice as long to charge. If you were going up from 110 to 220 that would be dangerous.
Wala.Revolution
Profile Blog Joined November 2006
7582 Posts
Last Edited: 2009-11-16 09:29:25
November 16 2009 09:20 GMT
#5
Thanks guys.

EDIT: I think I lost the adapter. Does it matter if I use any transformers?
Stuck.
kOre
Profile Blog Joined April 2009
Canada3642 Posts
November 16 2009 09:29 GMT
#6
On November 16 2009 17:58 Wala.Revolution wrote:
Show nested quote +
On November 16 2009 17:28 kOre wrote:
Korean laptop + 220V outlet = computer lasts 2 hours

Korean laptop + adapter from 220V to 110V = computer lasts 1 hour

When you go back to Korea and charge the laptop from a 220V outlet it'll go back to lasting 2 hours.


Err, this didn't answer my question, but does it mean that if I charge it to full in US it will last as half as long as when I charge it in Korea, or duration is 1/2 when I just charge it for a set amount of time. (I'm guessing the latter).

The latter. Same goes for when you go from 110 to 220.
http://www.starcraftmecca.net - Founder
kOre
Profile Blog Joined April 2009
Canada3642 Posts
November 16 2009 09:31 GMT
#7
On November 16 2009 18:20 Wala.Revolution wrote:
Thanks guys.

EDIT: I think I lost the adapter. Does it matter if I use any transformers?

Doesn't matter if you use a transformer or an adapter. Same thing applies.

Now that I think about it, if you're going from 220V to 110V it might work perfectly normally. But I know the other way around (110 to 220) it only works the way I mentioned it before.
http://www.starcraftmecca.net - Founder
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