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Old Sep 29, 2002, 04:33 PM
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STEP-BY-STEP guide on how to build a $12 TX battery!


This is a STEP-BY-STEP guide to building you're own ~$12.00 1600mAh Transmitter battery for most Hitec (others?) radios.

(yes, it's kind of a joke... but the info is real)!


Step 1. Go buy everything!
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Old Sep 29, 2002, 04:34 PM
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Biglots: 2x 4-packs of Panasonic 1600mAh NiMH cells $4.99each
(you can use any AA cells here, but this is a great deal)
Old Sep 29, 2002, 04:36 PM
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Radioshack: 8cell AA-sized holder, #270-407A $1.69 (in stores).


(note: most Ratshack stores are changing around, and their
new "parts storage" areas don't have these in it. Ask the
employee, they will probably have them on an end-cap or in the
back)
Old Sep 29, 2002, 04:37 PM
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This is what it looks like out of the package...
Old Sep 29, 2002, 04:38 PM
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Take the cells out, and put them in the holder. (I told you it was
step-by-step! heheh )
Old Sep 29, 2002, 04:40 PM
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as you can see (despite the crappy quality of my digital camera)
they're the same size as the hitec packs with the foam "padding".
Old Sep 29, 2002, 04:40 PM
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Slide them in your Focus3 radio and use!
Old Sep 29, 2002, 04:41 PM
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...unless you have a Flash4/5, then you just clip them in..
Old Sep 29, 2002, 04:43 PM
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There you have it!


For $11.67+tax you have a TX battery that you can use all day.
Old Sep 29, 2002, 04:51 PM
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oh yeah... one more thing..


This is what you should do to your Hitec TX battery...


(honestly, they need to be recycled)
Old Sep 29, 2002, 09:18 PM
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Thanks for the tip, that is a great deal on the Nimh cells. Your right, 600mah nicads and the Flash radio is for the birds. Seems like the money you pay for the radio, they could include the Nimh cells instead?
Philip
Old Sep 29, 2002, 10:09 PM
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This ought to work in quite a few JR radios as well.
My JR Max 44 came with a battery exactly like that, except with shrink wrap over it.
Old Sep 29, 2002, 10:34 PM
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Where are you getting the batterys at $4.99?

Dennis
Old Sep 30, 2002, 02:40 AM
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There is one catch though: the battery pack is always soldered, or at least welded. Self-made unit with the battery holder uses springs - can sometimes cause bad contact.

With normal no-fancy radio bad contact causes just to lose Tx power for a moment, for computer controlled radios it can be more dramatic, where you have to press some buttons after power-up (to confirm the PLL-frequency, or model or what-ever) before it powers up. Not talking abount a voltage loss in spring contact. Although it seems like a cheap alternative, it really is not very reliable alternative unfortunately.

Risto
Old Sep 30, 2002, 06:53 AM
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Risto,

Sure... It's not "as good" as making up a pack, but its quick, easy, and cheap.


I know a few people who have been using dry cell holders in their
Focus3's for years and none of them have had any problems.


I always keep a drycell AA holder on hand at all times so if the TX
batteries die, I can use it. $1.69 is worth not having to drive
back home from the field!


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