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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › Can a nicad battery be installed in the stock helimax axe cp transmitter?
01-24-2010 01:55 AM  8 years agoPost 1
RaptorMan23

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Sioux City, IA

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??

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01-24-2010 06:11 AM  8 years agoPost 2
Justin Stuart (RIP)

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Plano, Texas

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Why would you use a NiCD? That is very old technology.

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01-24-2010 06:27 AM  8 years agoPost 3
jschenck

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La Vista, NE.

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I did that to a Blade CP TX a few years ago. Take the case apart and find the pos. and neg. leads that go from the battery tray to the electronics. I soldered on a JST connector. Used an old GWS NiMH pack that just happened to fit in the battery tray once I removed all the metal pieces. JST connector is what the battery pack had on it. Took less than an hour.

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01-24-2010 12:14 PM  8 years agoPost 4
RaptorMan23

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Sioux City, IA

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Awesome thanks John,
Why would you use a NiCD? That is very old technology.
No there not

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01-24-2010 08:19 PM  8 years agoPost 5
dkshema

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Cedar Rapids, IA

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Old technology? So what? Nicads are extremely reliable, forgiving if abused, inexpensive, have quite benign failure modes and have supplied power to all sorts of electronics from toys to spacecraft for decades.

If you're going to use that kind of argument for not using Nicads, two-stroke motors are an extremely old technology, and frankly, electric motors have been around for over a hundred years. The helicopter itself isn't what you'd call new technology either.

Don't knock something simply because it's tried and proven.

With regard to this particular application, they simply drop right in, something that fancy new LiPo CAN'T.

-----

The Alkaline cells used in the transmitter also are not "new" technology, they're just primary batteries and when they're dead, you have to buy new. That gets expensive. Their nominal voltage is about 1.5 volts per cell, whereas the Nicad will average around 1.2 volts per cell. I see no reason why you can't substitute Nicads (or NiMh) AA cells in place of the alkalines. The transmitter should work just fine and you'll save some $$$ over the lifetime by not having to buy new batteries all the time.

-----
Dave

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01-25-2010 05:46 AM  8 years agoPost 6
RaptorMan23

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Sioux City, IA

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Thank you Dave

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01-25-2010 01:19 PM  8 years agoPost 7
Justin Stuart (RIP)

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Plano, Texas

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Old technology? So what?
NiMH is an improvement over NiCD technology unless you are going to be constantly overcharging the battery. New generation NiMH cells such as the Eneloops don't self discharge and have more than twice the capacity of the comparable NiCD battery Not to mention the fact you can do away with using Cadmium which is toxic and bad for the environment.

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01-25-2010 07:15 PM  8 years agoPost 8
dkshema

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Cedar Rapids, IA

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The original question was "can a nicad battery be installed..."

That was met with the ludicrous "old technology" response.

I responded directly to the nicad part of the thread, and to the "old technology" part of the thread.

For the record, my response also included
I see no reason why you can't substitute Nicads (or NiMh) AA cells in place of the alkalines.
so you can see I did identify NiMh as an alternate option.

I don't think I'd like to get into a "green" argument, but for the record, Cadmium IS a naturally occurring element, it is NOT man made. It was toxic in the environment BEFORE the invention of Nicad technology, and no one seemed all that upset. Lead is also a naturally occurring element, it's toxic, as well. There are hundreds of millions of lead-acid batteries in use around the world. Let's get rid of those, too. And geez, they are REALLY old technology.

-----
Dave

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