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Search: Posts Made By: flyelectricmodel
Showing results 1 to 16 of 16
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Forum: Batteries & Chargers
09-11-2015, 09:09 PM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

I've got over 100 A123's in my various models. ...

I've got over 100 A123's in my various models. And outside of completely screwing up two cells over the years, never had a failure. Some of those packs are 7 years old, and they've been pulling 40...
Forum: Batteries & Chargers
09-10-2015, 08:58 PM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

Yup, those A123's work very well for the larger...

Yup, those A123's work very well for the larger models. For the smaller models of perhaps 5 pounds or less, the Nih packs will also do the job. The five cell AA Nih packs are about an ounce less...
Forum: Batteries & Chargers
09-10-2015, 08:54 PM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

Out of curiosity, are these also used in those...

Out of curiosity, are these also used in those electronic cigarettes?

I think a very similar battery cell is used in my Sears Craftsman NexTec 12 Volt Lithium Ion impact driver and electric drill....
Forum: Batteries & Chargers
09-10-2015, 05:23 PM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

I'm not aware of any RC radio receiver battery...

I'm not aware of any RC radio receiver battery with lower internal resistance than the two cell 2500 Mah A123's. At 25 Amps output current, they still have 2.8 Volts DC per cell at their terminals. ...
Forum: Batteries & Chargers
09-10-2015, 03:37 PM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

Before retiring I've traveled to Toronto on...

Before retiring I've traveled to Toronto on business several times. Nice place to visit.

I've got discharge curves of both a 5 cell Nih AA pack and a two cell A123 2500 Mah pack. At a discharge...
Forum: Batteries & Chargers
09-10-2015, 03:32 PM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

If your charger is charging the A123 pack though...

If your charger is charging the A123 pack though the balance cable, you're limited to around 2.5 Amps charge rate due to the current limits of the balance cable itself. As indicated in my first...
Forum: Batteries & Chargers
09-09-2015, 09:15 AM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

Ah, you're in Canada? I've been buying my...

Ah, you're in Canada?

I've been buying my bare cells from this place. They want $20 USA for each cell, but if you buy 10 cells, their price drops to a very reasonable $9.30 Each....
Forum: Batteries & Chargers
09-08-2015, 12:49 PM
Replies: 35
Views: 27,413
Posted By flyelectricmodel

For the larger models, IMHO, those Eneloop...

For the larger models, IMHO, those Eneloop batteries for receiver power are a bad idea. I've run high current tests on them, then can't handle much more than a few Amps before running into voltage...
Forum: Batteries & Chargers
03-21-2009, 09:02 PM
Replies: 51
Views: 18,043
Posted By flyelectricmodel

RE: A123 as receiver pack - no fly voltage?

I've done a lot of testing on my A123 batteries on my 2.2 Ampere load tester. These batteries have a very FLAT discharge voltage. The voltage only drops about 1.5% from 90% charge to 10% charge....
Forum: Batteries & Chargers
03-16-2009, 07:18 PM
Replies: 14
Views: 2,135
Posted By flyelectricmodel

RE: A123 4600 6.6v

These are a premade Hypersonic packs, 2s2p 4600.I do not want to cut into them or anything like that until I can make some contact with with someone about warranty.I did charge them at 1s 3.6v and it...
Forum: Batteries & Chargers
03-16-2009, 10:55 AM
Replies: 14
Views: 2,135
Posted By flyelectricmodel

RE: A123 4600 6.6v

What kind of problems? Word on the Internet is, A123 can be rather hard to get a hold of. I've been buying Dewalt 36 Volt batteries, and pulling the cells out of them. I believe the part number is...
Forum: Batteries & Chargers
12-17-2008, 10:04 PM
Replies: 2
Views: 774
Posted By flyelectricmodel

RE: M1 cell dimensions

If you are talking about the A123 26650 cells, I got mine from the Dewalt DC9360 battery packs. These cells weigh in at about 2.5 ounces each, measuring 1.05 inches diameter, and 2.62 inches long,...
Forum: Glow to Electric Conversions
10-25-2008, 01:59 PM
Replies: 17
Views: 1,753
Posted By flyelectricmodel

RE: electric conversion question

Take a look at the Hacker A40 series of motors. These motors have a third ball bearing to support the "bell end" of the outrunner motor. I run mine at 45 Amps on 4 26650 A123 cells. The motor only...
Forum: Electric General Discussion
10-25-2008, 01:47 PM
Replies: 6
Views: 1,832
Posted By flyelectricmodel

RE: Heat shrink over a battery pack - Need tips

Take a walk to your local grocery store, and look at the various plastic water bottles, tea bottles and the like. (These plastic bottles will shrink about 20% or so with a heat gun!)

Find one...
Forum: Batteries & Chargers
10-25-2008, 01:31 PM
Replies: 1
Views: 1,131
Posted By flyelectricmodel

A123 Cell Results 2008

I've got two different 6S2P A123 battery packs in two different models. The batteries drive a Hacker A50-12S and A50-16S motors. The motors are pulling about 57 Amps at full power.

These...
Forum: JR Radio & Spektrum Radios
05-14-2007, 07:25 PM
Replies: 109
Views: 16,887
Posted By flyelectricmodel

RE: Loss of control in flight using AR7000 & DX 7 UPDATE 5/5/07

Yes, I did have a complete loss of control on one of my three DX7 receivers. It happened on the ground in my front yard after several hours of "burn in time". Had this occurred in the air, it would...
Showing results 1 to 16 of 16


 
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