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Old December 22nd, 2009, 18:13   #1
mas_oyama
 
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battery charging

Okay I posted this in the battery FAQ too, but My new battery just got in today and I need to charge it... so I need an answer. looks like I won't get a quick answer in the other thread... at least I tried not to make a new topic just for that!!!

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Originally Posted by mas_oyama View Post
Hey I have a small question.

I just got my charger yesterday, and I was wondering how I should charge the batteries.

I got this charger:
http://www.airsoftparts.ca/store2/in...oducts_id=1030

it can charge at 0.9A or 1.8A.

the battery I am getting is a G&P(yeah I ordered a tamiya to deans adaptor since the charger dont have deans plugs...), 8.4v 2200mAh. Should I charge it on .9 or on 1.8A? also if I undestand the first post correctly, lets say I charge it at .9A, it should take 2.4 hours to charge right? 2200 / 900 = 2.44...
So is there any difference other than the time it'll take to charge between .9 and 1.8A? i just dont want to destroy my brand new battery... lol.
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Old December 22nd, 2009, 18:16   #2
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Never charge over 1C

0-1799 MAH @ 0.9A

1800+ MAH @ 1.8
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Old December 22nd, 2009, 18:19   #3
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Charge it on .9

The light will be red.

Once the light turns green, Its charged.

Don't worry about overcharging it, that charger will stop the charge once its full.

That being said, you still shouldn't leave it plugged in any longer then you have too.
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Old December 22nd, 2009, 18:22   #4
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Quote:
Originally Posted by Amos View Post
Never charge over 1C

0-1799 MAH @ 0.9A

1800+ MAH @ 1.8
I can't choose the capacity thingy. I just have a selector for .9 or 1.8A.

since my battery is a 8.4v 2200 mAh, I take it I should charge at 1.8?

edit before I post: I guess by "Never charge over 1C" you meant "never overcharge you battey"? lol. I figured that as I was typing. My charger is a smart charger, so I guess I can leave it on all night long, it'll just stop charging when its full...

thank yet again Amos, for your quick answer to my n00bs questions, as you always do! much appreciated!
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Old December 22nd, 2009, 18:23   #5
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Quote:
Originally Posted by theguy View Post
Charge it on .9

The light will be red.

Once the light turns green, Its charged.

Don't worry about overcharging it, that charger will stop the charge once its full.

That being said, you still shouldn't leave it plugged in any longer then you have too.

k thank, I'll take Amos advise on the Amp, but I'll take your's as far as unplugging it as soon as I notice it's full. thanks!
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Old December 22nd, 2009, 18:39   #6
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Though you can charge your battery as fast as you want (1.8 A/hour vs. 0.9 A/hour) It is generally considered a good idea to charge it as slowly as possible.

I only use the 1.8 setting if i am at a game, and time is an issue.
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Old December 22nd, 2009, 18:42   #7
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Same here, if you have some spare time, charge it slowly. I also have 2200mah and I set my charger to 1.20amp.
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Old December 22nd, 2009, 18:44   #8
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Quote:
Originally Posted by mas_oyama View Post
I can't choose the capacity thingy. I just have a selector for .9 or 1.8A.

since my battery is a 8.4v 2200 mAh, I take it I should charge at 1.8?

edit before I post: I guess by "Never charge over 1C" you meant "never overcharge you battey"? lol. I figured that as I was typing. My charger is a smart charger, so I guess I can leave it on all night long, it'll just stop charging when its full...

thank yet again Amos, for your quick answer to my n00bs questions, as you always do! much appreciated!
1C = Battery MAH / 1000

1000 MAH battery = 1.0 Amps

If your battery is 0 to 1799 MAH, use 0.9A to charge it, if it's 1800+ use 1.8 MAH to charge it.
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Old December 22nd, 2009, 19:13   #9
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Quote:
Originally Posted by Amos View Post
1C = Battery MAH / 1000

1000 MAH battery = 1.0 Amps

If your battery is 0 to 1799 MAH, use 0.9A to charge it, if it's 1800+ use 1.8 MAH to charge it.
ah! this makes sense!!!

thanks Amos!

For the rest of you, thanks for your answers. I just trust Amos cause I've read many of his posts and discussed with him in PM a few times, and he seems to know his thing a lot. Also I have some really basic knowledge in electicity (very basic), and what he said remind me some notions from the past. lol. I kinda trust those posts. but still, thank you for your kind answers, its been helpful

I think we can now close this thread, as I got all the information I needed! anymore information would be best given in the battery faq in the accesory section, as it will be more helpful to others there than it'll be here!!!
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