DeWAlt 36 Volts Packs / some(?) now with non A123 cells  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> A123Racing Support >> DeWAlt 36 Volts Packs / some(?) now with non A123 cells
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DeWAlt 36 Volts Packs / some(?) now with non A123 cells - 6/1/2008 12:33:16 AM   
everydayflyer



Posts: 910
Joined: 8/21/2005
From: Buchanan, GA, USA
Status: offline 		Many of us have been purchasing DeWalt 36 V packs and liberating the 10 2300 mAh A123 cells from them for RC useage. It now looks like not all such batteries contain A123 cells.

http://www.rcgroups.com/forums/showpost.php?p=9866803&postcount=18

Snip

quote:

the other had Sony US26650VT cells.


Now he did say they were used so perhaps someone changed the cells out after it left the plant.

Sure would like to know what is going on here. There have been many price increase on the A123 cells and even DeWalt packs have increase about 50% recently on E Bay and now this.

Hate to say it but I may be forced to migrate to K2 cells.

Charles

< Message edited by everydayflyer -- 6/1/2008 12:39:49 AM >
       Post #: 1

RE: DeWAlt 36 Volts Packs / some(?) now with non A123 c... - 6/1/2008 12:59:39 AM   
Red Scholefield



Posts: 4902
Joined: 12/8/2001
From: Newberry, FL, USA
Status: offline 		Something odd going on here. USED pack with Sony US26650 cells. Searched Sony and could not get a hit on this or any other Sony cells. With the rapid rising prices on DeWalt 36 volt packs I would not be surprised if there was creativity involved in switching cells. I doubt that the DeWalt charger would tolerate the difference in cell voltages assuming the US26650VT is a slightly different chemistry than the A123 cells.

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Red S.
AMA 951 Leader Member

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RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/1/2008 2:09:37 AM   
everydayflyer



Posts: 910
Joined: 8/21/2005
From: Buchanan, GA, USA
Status: offline 		I do not know Red. I saw the post and figured that perhaps Brian just might respond sometime in the next month or so. At least a few others will know to be on the look out.
My general read has been that A123 has discouraged the use of DeWalt cells from day one. To me it seems they have implied that there were more cells manufactured than they authorized(?). It has been a challenge to read between the lines to say the least.

I still remember the e mail from a rather well known battery vendor inquiring if we were interested in higer quialty A123 cells than those in DeWalt packs.


Sony cells

http://www.elektromodellflug.de/akku-test/us266650vt.htm

Charles

< Message edited by everydayflyer -- 6/1/2008 2:44:50 AM >

(in reply to Red Scholefield)
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RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/1/2008 11:55:52 AM   
Red Scholefield



Posts: 4902
Joined: 12/8/2001
From: Newberry, FL, USA
Status: offline 		Very interesting. From the picture of the Sony 26650 there appears to be a crimp on one end of the cell, while the A123 has none. Charge voltages 4.1-2.5 ? seems to be a little weird. I doubt if these are the same chemistry. As for A123 promotion for RC use it appears they have bigger fish to fry than our piddling hobby needs.

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Red S.
AMA 951 Leader Member

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RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/2/2008 1:49:29 AM   
everydayflyer



Posts: 910
Joined: 8/21/2005
From: Buchanan, GA, USA
Status: offline
quote:

As for A123 promotion for RC use it appears they have bigger fish to fry than our piddling hobby needs.


I agree that we are but a grain of sand and far more trouble than token sells are worth so why even bother to create A123 Racing and market to RC ers in the first place and why have an Official A123 Support Forum and then not support it?

Have you ever been to the Polks Tracker III Forumn here on RCU? Same deal , no support so why bother creating the Forum in the first place? I advise those seeking support to go to RC Groups Batteries and Chargers.


Charles

(in reply to Red Scholefield)
       Post #: 5

RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/2/2008 4:04:20 AM   
dick Hanson



Posts: 9923
Joined: 12/12/2001
From: slc, UT, USA
Status: offline 		Hobby people and research people (universities )are good sources of additional press and possibly new uses for product
Look at the guys in Cedar City Utah - Look at the electric drag bike
I have a friend who recently purchased a quantity for research work.
The RC indusry is a minor user -for the moment - give it a chance .
Pricing is a momentary stumbling block
But So far the press has all been positive -tho some vendors have fumbled the ball on application and marketing. All the users I know are pleased and THAT kind of press is good for A123

< Message edited by dick Hanson -- 6/2/2008 4:07:28 AM >

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Libby

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RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/2/2008 10:37:39 PM   
SS Pede



Posts: 321
Joined: 2/2/2006
From: Reading, MA, USA
Status: offline 		I sure hope A123 continues to explore the RC market. The recent Enerland stuff is promising, and they're still running ads in the RC magazine I get. The problem is there is no substance to this stuff. Detailed info is hard to find, as are the products themselves. The 1100-mAh cells have been advertised in finished pack form for months, but cannot be purchased anywhere. I really hope A123 remedies this stuff and continues to push their RC products, because it is really promising technology.

(in reply to dick Hanson)
       Post #: 7

RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/3/2008 2:58:29 PM   
everydayflyer



Posts: 910
Joined: 8/21/2005
From: Buchanan, GA, USA
Status: offline
quote:

The 1100-mAh cells have been advertised in finished pack form for months, but cannot be purchased anywhere


Sure they can just not from A123 Racing.

http://www.battlepack.com/LiFEPO4.asp

Charles

< Message edited by everydayflyer -- 6/3/2008 2:59:39 PM >

(in reply to SS Pede)
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RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/6/2008 1:41:22 AM   
SS Pede



Posts: 321
Joined: 2/2/2006
From: Reading, MA, USA
Status: offline
quote:

ORIGINAL: everydayflyer

quote:

The 1100-mAh cells have been advertised in finished pack form for months, but cannot be purchased anywhere


Sure they can just not from A123 Racing.

http://www.battlepack.com/LiFEPO4.asp

Charles

Well OK, true. But I was talking about the "official" packs that A123 is supposedly going to distribute...the ones I've seen pictures of with the red and orange shrink wrap and A123 logo. At least the cells are available and such retailers as battlepack are nice enough to "pick up the slack" and build the packs for us if we want.

(in reply to everydayflyer)
       Post #: 9

RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/8/2008 11:01:06 PM   
everydayflyer



Posts: 910
Joined: 8/21/2005
From: Buchanan, GA, USA
Status: offline
quote:

At least the cells are available and such retailers as battlepack are nice enough to "pick up the slack" and build the packs for us if we want.


IMO not only nice for those who do not roll their own but better as well as they are a lot less expensive and you can have packs built most any style you desire.

I do not believe the A123 orange and black skin makes them any better only more expensive.

The way I see it others have had chargers capable of charging/ balancing up to 10 cell packs for two years now and A123 is working on a 4 cell updated charger.

Charles

(in reply to SS Pede)
       Post #: 10

RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/12/2008 4:26:00 PM   
write2dgray


 

Posts: 25
Joined: 8/2/2007
From: Seattle, WA, USA
Status: offline 		All a bit ridiculous - I would be very interested to hear confirmation or denial of the use of Sony cells.

(in reply to everydayflyer)
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RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/13/2008 11:00:44 PM   
Tipover


 

Posts: 433
Joined: 6/24/2002
From: Outoftown, WI, USA
Status: offline 		Here's an update on the Sony cell saga. http://www.rcgroups.com/forums/showpost.php?p=9945347&postcount=26

Steve did a wonderfull job documenting his finds.
I'm very confident that the evidence points towards a early Dewalt prototype. I doubt there are many out in circulation.

Kevin

(in reply to write2dgray)
       Post #: 12

RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/13/2008 11:27:11 PM   
write2dgray


 

Posts: 25
Joined: 8/2/2007
From: Seattle, WA, USA
Status: offline 		Agreed. It looks to be an early prototype or one-off test from inside the labs at DeWalt. No cause for concern.

(in reply to Tipover)
       Post #: 13

RE: DeWAlt 36 Volts Packs / some(?) now with non A123 ... - 6/15/2008 1:12:27 AM   
everydayflyer



Posts: 910
Joined: 8/21/2005
From: Buchanan, GA, USA
Status: offline 		What amazes / amuses me is that I started this thread two weeks ago and no official response from Brian ( A123 Racing Customer Service).

One thing to consider however is that he rarely checks this forum on weekends.

Charles

(in reply to write2dgray)
       Post #: 14

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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> A123Racing Support >> DeWAlt 36 Volts Packs / some(?) now with non A123 cells
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