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Old Yesterday, 06:09 PM
Registered User
NW NW Washington
Joined Aug 2007
718 Posts
Help!
2.4 GHz TX's

I have a Spektrum DX6, which is 7 years old, and three AR6000 receivers bound to it. The last several years when I charge the TX for 24 hours (at either 50 or 250 mA), it shows 11.4 volts but drops to 10.6 volts or so in less than an hour. I take it right off the charger and go to the pond, where the battery drops to the low voltage warning of 9.0 volts in less than an hour. I bought a new 2500 mAh Ni-MH battery less than two years ago, and it has the same problem.

1. Should I expect longer life from these batteries (years and run time)?
2. Would I do better to use a battery holder and 8 AA alkaline batteries?

The DSM technology in this equipment is obsolete, according to Spektrum/Horizon Hobby. This seems to mean that if I replace the TX I will have to replace the RX's too. Is there someone who makes new, high quality TX's that are compatible with my RX's? (I will research this online, but I am looking for recommendations here)

All my boats are slow, tug-types, so great range is not an issue.
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Old Yesterday, 06:30 PM
Grumpa Tom
Kmot's Avatar
United States, CA, Los Angeles
Joined Sep 2003
23,686 Posts
You have been lucky to even have any charge at all in the battery after 7 years.

No, they are not expected to last that long. So you should just purchase another battery pack with the correct polarity for the early DX6. The polarity is reversed from standard on these. Stooooopid idea Horizon Hobby had back then. But the good thing is you can replace that crappy 600mAh pack with a 2000 or 2400 mAh pack for less money than a Spektrum branded replacement.

The new Spektrum radios are backwards compatible with your old AR6000 receivers, so you would be able to still use them.
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Old Yesterday, 10:15 PM
AndyKunz's Avatar
Illinois
Joined Sep 2001
24,195 Posts
Quote:
Originally Posted by Kmot View Post
The new Spektrum radios are backwards compatible with your old AR6000 receivers, so you would be able to still use them.
No they aren't.

Any radio which supports DSMX will NOT support an AR6000. The AR6000 could be used with the original DX6, original DX7, and early versions of the DX6i. The current DX6i supports DSMX and DSM2, not DSM and DSM2.

Andy
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Old Yesterday, 10:28 PM
Taking care of the pond.
MILLERTIME's Avatar
USA, CA, Fresno
Joined Apr 2004
7,323 Posts
I bought this one, works great.

http://www.ebay.com/itm/2500mA-Tx-BA...item2a091d6d9f
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Old Yesterday, 11:42 PM
Registered User
tbarjohn's Avatar
aurora, il.
Joined Aug 2009
219 Posts
millertime, I have ordered those batteries and they work good

a few years ago some of our club members did this modification and had good luck
https://www.dimensionengineering.com.../spektrum_mod/
if you are going to change radios, I have a dx6i with 4 receivers that I hardly use any more, I switched over to FlySky FS-T6 http://www.hobbypartz.com/79p-t6-6ch-radio-lcd.html this is a 6 channel radio, the receivers are only $11 http://www.hobbypartz.com/79p-r6b-receiver.html , I have 4 transmitters and 6 receivers, I ordered these batteries http://www.hobbypartz.com/77p-rechar...2200-8pcs.html ,they all work great , sorry about the plug for Hobby Partz but I've had good luck with them
John R.
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Old Today, 12:52 AM
Grumpa Tom
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United States, CA, Los Angeles
Joined Sep 2003
23,686 Posts
Thanks for the correction Andy.
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Old Today, 01:12 AM
Registered User
NW NW Washington
Joined Aug 2007
718 Posts
Thanks for all the good advise, guys.

Another question: If I use alkaline batteries, how much run time can I expect?
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