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Old Apr 29, 2003, 08:44 PM
Lazy sob
I FO nut's Avatar
Rural retreat, Virginia
Joined Apr 2002
367 Posts
Can't find decent charger for lithiums--help-

I would like to get a Charger for a 2 cell lithium pack but can't find anything less than a hundred bucks that will charge a 3 cell(2s1p) pack of 2100 mah (from Radical RC) at a decent rate. (I don't want to wait 3 hours)

HELP!!

Thanks,
John-
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Old Apr 29, 2003, 09:47 PM
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NipponDave's Avatar
American in Japan
Joined Mar 2001
2,501 Posts
Re: Can't find decent charger for lithiums--help-

Quote:
Originally posted by I FO nut
I would like to get a Charger for a 2 cell lithium pack but can't find anything less than a hundred bucks that will charge a 3 cell(2s1p) pack of 2100 mah (from Radical RC) at a decent rate. (I don't want to wait 3 hours)

HELP!!

Thanks,
John-
Hi John,

Here's a page that explains all this "S" and "P" business:
DataSheet

A 2S1P is actually 2 cells, and can be charged with any "2-cell" charger . We think that the E-Tec SMART chargers offer the best value (under $50) and safety in this class. The 1.5A rate will charge that pack near 100% in 90 minutes. Below is a link to see those - click on "Prices" at the top left to see all the product listings and order.
SMART Chargers

All the Best,

David
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Old Apr 29, 2003, 11:34 PM
DigitalFlyer's Avatar
San Mateo, CA
Joined Aug 2002
223 Posts
Check out Troys charger at http://www.b-p-p.com/. He sells them for under $100.
-Amir
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Old Apr 29, 2003, 11:49 PM
Purveyor of RC-Opiates
LightFlightRC's Avatar
California
Joined Jan 2003
1,195 Posts
I've have a nice full feature charger in stock for about $40.

Check my webpage

<<<URL

-Dave
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Old Apr 30, 2003, 05:05 PM
Lazy sob
I FO nut's Avatar
Rural retreat, Virginia
Joined Apr 2002
367 Posts
Thanks for the replys! But I have another problem.(?)
Will the 2 cell charger rated for a 7.2 volt pack Charge radical Rcs 8.4 volt pack?

Thanks!
John
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Old Apr 30, 2003, 05:11 PM
Just an average RC'er
Jim McPherson's Avatar
Laurel, Maryland USA
Joined Aug 2000
4,291 Posts
Radical RC's 8.4 volt pack is really a 7.2 volt nominal pack...any 2 cell charger for lithiums will work.
-Jim
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Old Apr 30, 2003, 06:26 PM
Registered User
Walled Lake, MI, USA
Joined Feb 2000
11,182 Posts
Even though you charge them to 4.2V, the nominal voltage for most LiPo cells is usually given as 3.7V. Thus a 2-cell pack is usually identified as being 7.4V. A few retailers may refer to a 2-cell LiPo pack at 7.2V or 8.4V. But they are really all pretty much the same, so you should consider them all to be 7.4V and not think that one LiPo cell puts out higher voltage than another.
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