http://modelelectronicscorp.forumotion.com/feed/? Latest topics Tue, 29 Sep 2009 09:33:08 GMT 10 http://illiweb.com/fa/empty.gif http://modelelectronicscorp.forumotion.com/feed/? http://modelelectronicscorp.forumotion.com/general-discussion-f2/power-tubes-t25.htm Raptor Ok since MEC has closed shop, is there any other source for the most EXCELLENT Power tubes? I was wondering if there was a source for perhaps oval plastic tubes that could be heated and creased down the middle.. I was also considering perhaps some plastic tube that may be reshaped. General Discussion Tue, 29 Sep 2009 09:33:08 GMT http://modelelectronicscorp.forumotion.com/general-discussion-f2/power-tubes-t25.htm#65 http://modelelectronicscorp.forumotion.com/general-discussion-f2/power-tubes-t25.htm http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/still-active-t24.htm ramboman I love your products but I see you are "out of stock" for most of them.
Are you still active in the business ?
You have probably the best approach to a123 packaging...
Give me a sign ;-)
ram@skynet.be]]> Model Electronics Corporation Tue, 21 Apr 2009 08:36:53 GMT http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/still-active-t24.htm#61 http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/still-active-t24.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/current-setting-for-optimal-2300mah-a123-charging-t1.htm Merf On the Astro Flight A123 charger it states:"Charge A123 cells at 5 A". It was my understanding that these cells can be safely charged at a 4C rate, which is equivalent to a charge rate of 9.2 A - why the 5 A instruction? A123 Systems Tue, 13 May 2008 01:07:06 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/current-setting-for-optimal-2300mah-a123-charging-t1.htm#1 http://modelelectronicscorp.forumotion.com/a123-systems-f6/current-setting-for-optimal-2300mah-a123-charging-t1.htm http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/parajump-parallel-connector-t23.htm bhaight Anyone made one of these themselves and know the best way to assemble? Model Electronics Corporation Mon, 16 Mar 2009 15:34:46 GMT http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/parajump-parallel-connector-t23.htm#60 http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/parajump-parallel-connector-t23.htm http://modelelectronicscorp.forumotion.com/feedback-f3/a123-packs-t2.htm Tyler I recently ordered a few receiver packs from Pete that are 2300mah A123 2s1p. I installed the first one into my 50 sized Compass Models Knight 50 3D helicopter after having Duralite and Fromeco li-ion packs fail to last even a few months. I must say, I am pleasantly surprised by the fast charging these cells can take. I hit them with 9 amps via an Astroflight A123 charger. I get three flights in then charge in 12 minutes! Next, I used the same 2 cell configuration to power my 5 year ... Feedback Mon, 19 May 2008 05:26:00 GMT http://modelelectronicscorp.forumotion.com/feedback-f3/a123-packs-t2.htm#4 http://modelelectronicscorp.forumotion.com/feedback-f3/a123-packs-t2.htm http://modelelectronicscorp.forumotion.com/feedback-f3/what-t-new-t22.htm ramboman Everything out of stock, what happens ? Feedback Mon, 23 Feb 2009 17:22:56 GMT http://modelelectronicscorp.forumotion.com/feedback-f3/what-t-new-t22.htm#58 http://modelelectronicscorp.forumotion.com/feedback-f3/what-t-new-t22.htm http://modelelectronicscorp.forumotion.com/feedback-f3/just-to-tell-that-i-am-happy-t21.htm ramboman They are used as 12s2p or 6s2p depending on plane, and reloaded with MasTech HY2020E in 15 min.
Except for the weight, that is the best and cheapest approach to electric flying.]]> Feedback Mon, 12 Jan 2009 17:03:58 GMT http://modelelectronicscorp.forumotion.com/feedback-f3/just-to-tell-that-i-am-happy-t21.htm#57 http://modelelectronicscorp.forumotion.com/feedback-f3/just-to-tell-that-i-am-happy-t21.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/custom-pack-t19.htm Jollyroger Is it possible to build a 5S2P a-123 pack? I'm building a Balsa USA .40 Eindecker and would like to use a 5S2P pack for iy if possible. That way I can keep the prop diameter down to managable size. I just bought a CellPro 10s which has A-123 charge software but would like to field charge the pack using a simple power supply and diode. I also have a Whattmeter. What is recommended for a power supply? BTW I plan to mount the pack in a semi permanent installation. A123 Systems Sun, 30 Nov 2008 21:31:54 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/custom-pack-t19.htm#52 http://modelelectronicscorp.forumotion.com/a123-systems-f6/custom-pack-t19.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/balance-a123-t6.htm Bob Stewart The A123 Power Tube packs cannot be balanced during charging, as there are no tap wires. Can these packs be kept balanced by occasional trickle charging, as with NiMh? This is my guess, since the A123 can tolerate some charge input after full charge. A123 Systems Tue, 03 Jun 2008 14:22:41 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/balance-a123-t6.htm#15 http://modelelectronicscorp.forumotion.com/a123-systems-f6/balance-a123-t6.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/y-harness-charging-t20.htm taildragger1111 I'm running my sig 1/4 scale cub on two 6s1p 2300 mah a123 packs on a Y harness. I've been charging the packs individually with my Hyperion EOS 0610inet charger which sees the pack as 5 cells, but when I switch it to 6 cells it charges at 10 amps for 15 min. and the packs barely get warm to the touch! The question is... since there are 6s2p packs available, can I charge both packs at once thru the Y harness without risking damage to the packs? A123 Systems Fri, 09 Jan 2009 02:01:47 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/y-harness-charging-t20.htm#53 http://modelelectronicscorp.forumotion.com/a123-systems-f6/y-harness-charging-t20.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/correct-charging-voltage-t14.htm Fboss38 I charge using a Mastech HY5020E power supply, not a dedicated charger. It has adjustable voltage and current. My question is this, what should I use as the "chrarge to voltage" per cell. If the answer was/is 3.3, then Id set my voltage to 6.6 for a 2s pack. What I have been doing is seting voltage at 3.7v or 7.4 for a 2s. Id like to know what it should be per cell. Also since Im here what can I expect my voltage drop to be under load. I will be using a 10s set up on a Tango 10-08 (800KV) ... A123 Systems Mon, 07 Jul 2008 14:58:14 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/correct-charging-voltage-t14.htm#39 http://modelelectronicscorp.forumotion.com/a123-systems-f6/correct-charging-voltage-t14.htm http://modelelectronicscorp.forumotion.com/feedback-f3/power-tubes-t18.htm wnewbury I have been using the power tubes for several years with NiMH cells. They work very well. I like the ability to replace a bad cell and especially I like that the cells do not need to be damaged by heating them to soldering temperature. Feedback Sat, 20 Sep 2008 02:05:25 GMT http://modelelectronicscorp.forumotion.com/feedback-f3/power-tubes-t18.htm#48 http://modelelectronicscorp.forumotion.com/feedback-f3/power-tubes-t18.htm http://modelelectronicscorp.forumotion.com/general-discussion-f2/plastic-end-caps-t17.htm dirtybird I made my own with a heat gun and a piece of plastic I got from a cookie package from the grocery store.]]> General Discussion Tue, 12 Aug 2008 21:07:57 GMT http://modelelectronicscorp.forumotion.com/general-discussion-f2/plastic-end-caps-t17.htm#44 http://modelelectronicscorp.forumotion.com/general-discussion-f2/plastic-end-caps-t17.htm http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/mx-80-speed-controler-t16.htm Modelbuilder97355 Can some one please tell me what the number of ni-cad cells the old MX-80 will handle? Model Electronics Corporation Wed, 16 Jul 2008 15:17:59 GMT http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/mx-80-speed-controler-t16.htm#42 http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/mx-80-speed-controler-t16.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/charger-question-t8.htm flipzflyers Can I use a triton green dot version to charge a123 4cell 2300mah? If so what would be the setup? A123 Systems Sun, 08 Jun 2008 15:58:31 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/charger-question-t8.htm#19 http://modelelectronicscorp.forumotion.com/a123-systems-f6/charger-question-t8.htm http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/brushed-turbo-10-plus-question-t15.htm MountainJohn
Thanks,
John]]> Model Electronics Corporation Wed, 09 Jul 2008 17:56:42 GMT http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/brushed-turbo-10-plus-question-t15.htm#40 http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/brushed-turbo-10-plus-question-t15.htm http://modelelectronicscorp.forumotion.com/general-discussion-f2/powerpole-connectors-t13.htm DENI Re the Powerpole connectors that you supply fitted to your A123 Power-tubes
I had used these previously, but tended to shy away from them as I read that they they were not recommended to carry more than 30 amps, what is your opinion/experience ??

Thanks - - - Deni]]> General Discussion Wed, 25 Jun 2008 07:25:45 GMT http://modelelectronicscorp.forumotion.com/general-discussion-f2/powerpole-connectors-t13.htm#36 http://modelelectronicscorp.forumotion.com/general-discussion-f2/powerpole-connectors-t13.htm http://modelelectronicscorp.forumotion.com/general-discussion-f2/international-order-t3.htm wismer I will soon buy A123 cell or pack, then i would like to know if MEC accept international order ?

bye]]> General Discussion Fri, 23 May 2008 12:10:15 GMT http://modelelectronicscorp.forumotion.com/general-discussion-f2/international-order-t3.htm#5 http://modelelectronicscorp.forumotion.com/general-discussion-f2/international-order-t3.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/a123-1100-charging-t12.htm sevenm99 Just getting started with electric flying and I've decided to try using the A123 technology. I've purchased a couple of the 4S A123 1100 packs from MEC as well as the A123 Li-Ion Charger. I'm still learning about charging rates but one of the things that interested me with the A123 packs was the fast recharge.

So my question is, which power supply should I get (specs) to be able to charge the batteries in around 10 minutes?

Thanks,
Mark Sobel]]> A123 Systems Fri, 20 Jun 2008 10:47:10 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/a123-1100-charging-t12.htm#31 http://modelelectronicscorp.forumotion.com/a123-systems-f6/a123-1100-charging-t12.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/a-balancing-tap-necessary-for-charging-a123-cells-in-spt-using-astroflight-charger-t11.htm kitty20155 I'm guessing a balancing tap is NOT necessary for charging A123 Cells in SPT using AstroFlight charger?
I read the charger's manual and it's kind of vague about how to charge A123 cells in SPT.
Thank you in advance!]]> A123 Systems Wed, 18 Jun 2008 18:45:53 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/a-balancing-tap-necessary-for-charging-a123-cells-in-spt-using-astroflight-charger-t11.htm#30 http://modelelectronicscorp.forumotion.com/a123-systems-f6/a-balancing-tap-necessary-for-charging-a123-cells-in-spt-using-astroflight-charger-t11.htm http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/custom-battery-packs-t4.htm Gimpster
Thank you,

Gimpster]]> Model Electronics Corporation Wed, 28 May 2008 23:44:15 GMT http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/custom-battery-packs-t4.htm#9 http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/custom-battery-packs-t4.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/controllers-t10.htm Bob Stewart I want to go to A123 cells, but have some nice 100 amp (Aveox) controllers that do not have an adjustable cutoff. The site 'fly electric' states that A123s can be taken down to 1.0 volts, although not recommended. My controller measures the initial battery voltage and cutoff is 50% of that. Assuming a fully charged 4 cell pack is at 3.6 v. per cell or total of 14.4 volts. (I realize they drop to about 3.00 under load, but this doesn't affect the controller cutoff). The controller will then ... A123 Systems Mon, 09 Jun 2008 22:49:06 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/controllers-t10.htm#21 http://modelelectronicscorp.forumotion.com/a123-systems-f6/controllers-t10.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/dewalt-cells-t9.htm SVincent I have an new intact DeWalt 36V pack, and I'm considering using SPTs to make the DeWalt cells into two 5S1P packs. 1) To use the SPTs, can I leave the cardboard sleeves on the cells or should I remove them and use heatshrink to insulate them again? 2) And what to do with the tabs? Leave them on and trim them to fit the sleeves? Reading from the notes on the MEC site, peeling off the tabs is discouraged in order to not "leave holes in the battery case." A123 Systems Mon, 09 Jun 2008 18:17:01 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/dewalt-cells-t9.htm#20 http://modelelectronicscorp.forumotion.com/a123-systems-f6/dewalt-cells-t9.htm http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/nimh-6-cell-pack-t7.htm redcard
Are your nimh packs ($42.50) constructed using the solderless power tubes?]]> Model Electronics Corporation Sat, 07 Jun 2008 23:40:00 GMT http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/nimh-6-cell-pack-t7.htm#18 http://modelelectronicscorp.forumotion.com/model-electronics-corporation-f5/nimh-6-cell-pack-t7.htm http://modelelectronicscorp.forumotion.com/a123-systems-f6/hyperion-eos-0610inet-charger-t5.htm watersteps Hello, I could use some help with a wire location problem. I just started building my own A123 packs, they are 4S1P packs. I decided to install the balance wires while I build each pack. OK the pack is done and I have a female connector for a 4S1P which has 5 wire connections in it. Each wire is labeled on my pack 1 thru 4 and one black wire for ground. My problem is I don't know where to place the ground wire!! I thought I could determine this by looking at the balance plug in bar that connects ... A123 Systems Sun, 01 Jun 2008 16:38:41 GMT http://modelelectronicscorp.forumotion.com/a123-systems-f6/hyperion-eos-0610inet-charger-t5.htm#10 http://modelelectronicscorp.forumotion.com/a123-systems-f6/hyperion-eos-0610inet-charger-t5.htm