Evo packs 29-31 charges gone bad ?  
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All Forums >> Electric Aircraft Universe >> E-Flight Power Sources >> Evo packs 29-31 charges gone bad ?
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Evo packs 29-31 charges gone bad ? - 1/2/2008 5:56:36 AM   
J Strong


 

Posts: 17
Joined: 8/30/2005
From: Prattville, AL, USA
Status: offline 		I purshased two Evo 2100 4S pack just 2 months ago, and now with only 29 on one, and 31 charges on the other, they not only won't hold amperage, also have dropped to only holding 1400 mills, give ot take 50 millamps. Anyone having simular results with these packs ? Very disappointed in these high price packs.
I've run Thunder Power packs predominitly, with some elcheapO's China lipos, and would have never thought these high quality batterys would fail so fast. I always use the same Astroflight 109, and the TP 205 balancer, with more than a thousand charges on record.
I've contacted EVO, and will let you know what happens.
Thanks for your imput,
Jamie
       Post #: 1

RE: Evo packs 29-31 charges gone bad ? - 1/2/2008 4:09:00 PM   
Red Scholefield



Posts: 4973
Joined: 12/8/2001
From: Newberry, FL, USA
Status: offline
quote:

ORIGINAL: J Strong

I purshased two Evo 2100 4S pack just 2 months ago, and now with only 29 on one, and 31 charges on the other, they not only won't hold amperage, also have dropped to only holding 1400 mills, give ot take 50 millamps. Anyone having simular results with these packs ? Very disappointed in these high price packs.
I've run Thunder Power packs predominitly, with some elcheapO's China lipos, and would have never thought these high quality batterys would fail so fast. I always use the same Astroflight 109, and the TP 205 balancer, with more than a thousand charges on record.
I've contacted EVO, and will let you know what happens.
Thanks for your imput,
Jamie


You are not alone in your experience with EVO packs. We have a club member with similar experience. Testing I have done also shows early deterioration of capacity delivery when compared to other vendors.

FWIW nearly all LiPos are coming out of China where while they have mastered copying technolgy. They sometimes fall short in mastering the production control disciplines required in manufacturing consistant quality cells. Today's might be good, while tomorrows may be marginal at best.

_____________________________

Red S.
AMA 951 Leader Member

(in reply to J Strong)
       Post #: 2

RE: Evo packs 29-31 charges gone bad ? - 1/3/2008 6:30:23 AM   
J Strong


 

Posts: 17
Joined: 8/30/2005
From: Prattville, AL, USA
Status: offline 		Just for everyones knowlege, Evo (Powerflight) contacted me right away and the batteries are headed back to them with reciepts of purshase. We'll see what happens, but looks like they will be taking care of them. I feel for the guys that dosen't get to fly 2-3 times a day, cause the packs would be out of the 90 days warrenty about time they went bad.

(in reply to Red Scholefield)
       Post #: 3

RE: Evo packs 29-31 charges gone bad ? - 6/9/2008 10:32:54 PM   
Passport1


 

Posts: 715
Joined: 12/7/2002
From: Sierra Vista, AZ, USA
Status: offline 		Didn't read correctly

< Message edited by Double-vision -- 6/16/2008 1:06:52 PM >

(in reply to J Strong)
       Post #: 4

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