Anyone use the new Airthunder packs  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Anyone use the new Airthunder packs
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Anyone use the new Airthunder packs - 4/6/2008 4:10:29 AM   
jeeprubicon2k3


 

Posts: 113
Joined: 9/25/2006
From: Granby, MA, USA
Status: offline 		I'm looking at getting a pair of these for my SV27, anyone use them yet I have heard great things.

http://www.airthunder.com/2200mah148v4s1p25cli-polybatterypack.aspx?product=795

http://www.airthunder.com/5000mah74v25c2s1pli-polybatterypack.aspx

Among the key features of AirThunder batteries is the ability to withstand over-discharging. Over-discharging has been a major issue with conventional Li-poly technology as it leads to over-heating, deformation, and degradation of the battery. Model aircraft owners are often advised to time their operation to avoid detrimental effects. Our proprietary formulation and packaging technology has circumvented such problems, allowing the battery to be safely discharged to low volt. This is an industrial-first; a true breakthrough in Li-poly technology. In addition, our battery maintains its voltage till the very end of the discharge cycle. This means you can fully enjoy your flying experience worry-free.
       Post #: 1

RE: Anyone use the new Airthunder packs - 4/6/2008 2:18:02 PM   
gboulton



Posts: 1862
Joined: 5/28/2005
From: La Vergne, TN, USA
Status: offline 		I'll be interested in hearing as well. Considering some packs for my Blade 400.

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RE: Anyone use the new Airthunder packs - 4/7/2008 2:10:18 PM   
gboulton



Posts: 1862
Joined: 5/28/2005
From: La Vergne, TN, USA
Status: offline 		Bump.

Still hoping someone has experience with these.

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The free man will ask neither what his country can do for him nor what he can do for his country. - Milton Friedman

(in reply to jeeprubicon2k3)
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RE: Anyone use the new Airthunder packs - 4/7/2008 5:33:39 PM   
83gt


 

Posts: 386
Joined: 5/20/2006
From: vilas, NC, USA
Status: offline 		Seem a bit pricey. For that amount you can go with Flightpower, which are tried and true Enerland cells. AFAIK the best around at the moment.

J.

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RE: Anyone use the new Airthunder packs - 4/8/2008 1:02:25 PM   
RC Accessory



Posts: 592
Joined: 12/7/2001
From: Tampa, FL, USA
Status: offline 		Well I think they are great. True to their claim, great people to work with too. We have dropped all other lipo brands except for Air Thunder and Dualsky. Both brands stand behind their products.

The advantage to the AT over everyone else is that they don't puff, swell, and can handle constant over discharge. That is why you buy Air Thunder.

(in reply to 83gt)
       Post #: 5

RE: Anyone use the new Airthunder packs - 4/9/2008 12:44:45 PM   
83gt


 

Posts: 386
Joined: 5/20/2006
From: vilas, NC, USA
Status: offline
quote:

The advantage to the AT over everyone else is that they don't puff, swell, and can handle constant over discharge. That is why you buy Air Thunder.


I'd love to see some graphs to prove this.

*edit* i see they have discharge graphs on their site. That's very cool, and more than I can say for some LiPo manufacturers. Worth further investigation, i'm sure.

J.

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E-Savage | Tamiya CC-01 | Tamiya DI | Tamiya Stadium Raider | Losi MLST | AE RC10T3

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RE: Anyone use the new Airthunder packs - 4/9/2008 4:15:09 PM   
jeeprubicon2k3


 

Posts: 113
Joined: 9/25/2006
From: Granby, MA, USA
Status: offline 		I just picked up two 7.4v 5000 packs, I'll keep you posted. I have no intentions of over discharging though.

(in reply to 83gt)
       Post #: 7

RE: Anyone use the new Airthunder packs - 4/10/2008 4:44:51 PM   
83gt


 

Posts: 386
Joined: 5/20/2006
From: vilas, NC, USA
Status: offline 		Hrm. Looking at the graphs, I'm wondering how they can call this a 25C constant pack. The 5000mAh cells drop to about 3.2v on just a 20c load. I'd think a 25c load would take them below the level of most LVC's, and any sort of burst rating is shot to hell.

Flightpower Evo 20's hold around 3.4v with a 25c load, and they are 20c rated cells.

Interesting indeed. Seems they may be a rated a bit optimistically.

J.

_____________________________

E-Savage | Tamiya CC-01 | Tamiya DI | Tamiya Stadium Raider | Losi MLST | AE RC10T3

(in reply to jeeprubicon2k3)
       Post #: 8

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