Thud_Driver

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If you're interested in A123 battery packs and don't mind building them yourself, Amazon has a great deal on 8 cell DeWalt packs. You'll need the security bit set to get the pack open or else cut the screws. $56.50 delivered. I ordered one the other day. Gets you either 2 ECU + 1 RX pack or 4 Rx packs.

http://www.amazon.com/DeWalt-DC9280-...9361787&sr=1-1

Also at Tool King at $49.88 plus whatever for shipping:

http://www.toolking.com/dewalt-dc928...n-nano-battery

sideshow

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Those give you 6 cells?

highhorse

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8

rcpete347

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DC9280 gives you 8 cells, I opened up one yesterday.
Rcpete

mr_matt

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What cells do you end up with?

Thud_Driver

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2300mah M1's. Cut them apart carefully and all you should have to do is add leads, balance taps (if you want) & shrink. The welded tabs take solder nicely.

I'm flying my Flash off of a single 2 cell pack from one of these DeWalt packs using 2 servo leads thru 2 switches. No blinking lights on the Spectrum rx's.

rcpete347

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You get these.
Rcpete

jason

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matt, they have 8 A123 2300 cells. I have cut off 4 for a AMT ECU pack and then I have two two's for the twin Rx power.

Wish I could get them at that price in the uk [&o]

Jason

aquaskiman

My Feedback: (46)

How many MA are they? Nener mind I see it is 2300

TimD.

My Feedback: (207)

How are you guys charging them ?? I have a large supply in 1850's just not sure how to charge them.

gooseF22

We have done alot of testing with A123's as receiver packs. They WILL get out of balance if you dont balance them regularly. I use FMA 4 and 10S chargers, and the Multi 4S for balancing charges, and when I use the fromeco cube, I use a blinky at home after field charging. I had a pack with about 100 charges non balanced and it finally blew a cell, and that kicked off a bunch of testing resulting in the findings we had about balancing. They must be checked regulary or balance charged, or some sort of balance circuitry. For two packs, I just solder on a JR connector and put the signal wire on the mid voltage. Andy Low sells a 4S charge wire that matches to that.

I hope that is the question you were asking...

uncleTom

My Feedback: (30)

Good Deal

smitty1001

My Feedback: (29)

goose.... are you saying there is a blinky for A123's?

Jim Cattanach

Anyone got a drawing of how to wire a two cell pack for balancing.

jetflyr

I'm not Goose....but yes there is. Same price as the regular Blinky.
Greg

Robrow

Here ya go...

http://scriptasylum.com/rc_speed/_lipo.html

Rob.

sideshow

My Feedback: (11)

[link=http://www.rcgroups.com/forums/showthread.php?t=587606]Nice article[/link] on pack disassembly.

Jim Cattanach

Thanks Rob. Really useful link.

smitty1001

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Thanks Greg!

mr_matt

My Feedback: (10)

Thanks for the tip Mr. Silz and the rest of you.

$6.68 a cell to the door is pretty good.

gooseF22

Yes, I got mine from Radical RC way back when.. it works good too.. remember its a bleeding device, so dont leave it plugged in for days...

Thud_Driver

My Feedback: (1)

Sideshow: Thanks for posting the link on disassembly. I had seen it before and was one reason I started buyimg the DeWalt packs.

Matt: You're welcome!

rcpete347

My Feedback: (251)

HI, if it"s too good to be true then may be it"s not, these are really cheap, I paid $80 plus shipping.
Has any one bought from these people before, or is this a Black Friday special.
Rcpete

flyboy61045

My Feedback: (10)

Here is an other site that has a good deal on A123s http://holmeshobbies.com/home.php?cat=10 and here is a place to get the Blinky also. http://www.espritmodel.com/index.asp...OD&ProdID=5672

sideshow

My Feedback: (11)

[link=http://media.hyperion.hk/dn/a123/packassy/A123packassy.pdf]Click here[/link] for a link to a PDF that shows assembly including installing a balance lead.