I have the power 3S2P! x9303 on LiIon

[DebianDog]

Transmitter power bar now goes to the top and Rodney guarantees "it will work" on your radio.
Get yours from our own HF man Rodney.

Infina Models Transmitter Battery Products (http://infinamodels.com/)

http://www.helifreak.com/attachment.php?attachmentid=33163&stc=1&d=1198019616

http://www.helifreak.com/attachment.php?attachmentid=33164&stc=1&d=1198019685

[th3tick]

Aw, no fair! Mine came in black heatshrink ;)

[Skiddz]

Aw no fair! I don't have one! ;)

[DebianDog]

Aw no fair! I don't have one! ;)

I am sure he would be glad to send you one in exchange for $$$ ;)

[Skiddz]

And my LHS would be happy to swap several Ben Franklins for a Trex500 kit too. :)

Soon as I get everything moved over and see how long the NiMh pack lasts, I may have to ping Rodney for one.. That and see if you guys don't burn up your radios. :)

[Pinecone]

The stock pack in the XP9303 is a wimpy 600mAH. I am running a 2500 or 2700 pack I got form Discount Hobby Warehouse in SD area.

I like it. It hold a charge and lasts a long time.

[bullaculla]

Nice fit! i like it. lots of room for your bind plugs too.

[Magic Man]

better be careful! stock voltage is 9.6!
I burned my 9303 fm tx using lipos, and jr told me to pound sand!

[th3tick]

better be careful! stock voltage is 9.6!
I burned my 9303 fm tx using lipos, and jr told me to pound sand!

Burned? Can you elaborate?

[Pinecone]

And there is this, page G-26 in the manual:

5. Q: Can I use a 3-cell Li-Po pack in my transmitter
A: No. All current JR and Spektrum transmitters are
designed to operate using a 9.6-volt transmitter pack.
A fully charged 3-cell Li-Po pack puts out 12.6 volts.
This higher voltage can overload the power-regulating
transistor causing damage and or failure, possibly
in flight. Many of our customers have experienced
failures using 3-cell Li-Po packs and their use in JR
and Spektrum transmitters is highly advised against.
The X9303 2.4 system will operate for over 15 hours
using a 2700mAh Ni-MH battery.

[Rodney]

Well lets see how many pilots we can get to post that are running a 11.1v battery in any form in there dx7,9303 2.4, 9303,8103,10x,9c,9x,9z or any other radios without and issues. Im sure the numbers will suprise you guys by far as I have now made and delivered over 225 of the Infina Ions myself.
Thats not counting all the other bigger battery manufactures.

[DebianDog]

I did notice even if I charge to 12.6 when I put it in the radio it shows 12.4

[Pinecone]

Still don't see why I would want to give up 700 mAH of capacity? That's overa 1/3 more capacity than the 2000 mAH packs.:)

[DebianDog]

Because NiMH does not hold a charge. Your batt last 16+ hours?

[DavidH]

I ran the Duralite tranny battery in my 9Z for several years. It would show 12.4 on the voltage screen of the radio when fully charged. Never had a problem. But I did ask Mr. Futaba about installing the battery before I actually did it. He said they would not be a problem, the transmitter could handle it.
I liked the Li-Ion battery over the Nicad because it took about 6 ozs of weight off the radio. The capacity between the nicad I had and the Li-Ion were very similar. So operating time was not the reason for me to change.
David

[DebianDog]

I ran the Duralite tranny battery in my 9Z for several years. It would show 12.4 on the voltage screen of the radio when fully charged. Never had a problem. But I did ask Mr. Futaba about installing the battery before I actually did it. He said they would not be a problem, the transmitter could handle it.




Yep a Duralite has been in my 9C for years and it does the same thing.

I am a creature of habit and had a NiMH failed me once. That is the day I threw them all in the trash and switched to Duralites/LiIon

[DavidH]

Forgot to mention one thing about using the Li-Ion or Li-Po batteries in transmitters.
If your tranny has a low voltage warning and it is using a 9.6 Nicad/Nimh. Then the low voltage warning is useless when using Lithium batteries. The Low Voltage warning is usually set to around 8.5 volts to go off. With a Lithium battery it will be dead long before it ever got to 8.5 volts. So it is best to visually keep an eye on the voltmeter or at least check the battery with a voltmeter .
3S ( 11.1 volt) Lithium batteries usually about 10.8 volts is as low as you want them to go.
David

[Pinecone]

Because NiMH does not hold a charge. Your batt last 16+ hours?

I haven't tried it for a seriously lojng time. But mAH is mAH. And my 2700 will outlast your 2000. :)

And mine holds a charge nicely. I charge (when not flying) every couple of months.

[DebianDog]

> But mAH is mAH

FULLY charged sure... but a NiMH is "leaking" mAH continually. NO THANKS :thumbup:

[DavidH]

> But mAH is mAH

FULLY charged sure... but a NiMH is "leaking" mAH continually. NO THANKS :thumbup:

What makes you think Lithium based batteries are not loosing capacity when stored also?


David

[DebianDog]

What makes you think Lithium based batteries are not loosing capacity when stored also?



Oh it does. You know if you let a Duralite sit for 6-8 months it is semi-worthless BUT my NiMH deplete faster.

[Pinecone]

> But mAH is mAH

FULLY charged sure... but a NiMH is "leaking" mAH continually. NO THANKS :thumbup:

I can lose 25% and have the same capacity as you do. :)

And mine don't leak that much.

[th3tick]

Since I haven't done a side-by-side comparison, all I can state are my impressions. When I had the NiMH pack(s), it seemed like I was having to charge the thing every dang week, and that resulted in not being able to go flying a couple mornings. I first upgraded to the 2500mAh NiMH packs, which didn't seem to fix much.

It started to drive me nuts, and thus led me to the LiIon. Since switching, I haven't had to worry about it but about once a month or more, and had plenty of warning.

I don't know in specific terms why my experience has been so much different than yours. It just seemed to me that the NiMH packs drained faster both on and off than the LiIon ones do.

John

[Pinecone]

Question.

Should LiIon be stored at 50% charge like lipos?

If so, or for those using lipos, how do you deal with this and your charge aevery 2 - 3 months?

[DebianDog]

It just seemed to me that the NiMH packs drained faster both on and off than the LiIon ones do.


:thumbup:
Question.

Should LiIon be stored at 50% charge like lipos?

If so, or for those using lipos, how do you deal with this and your charge a every 2 - 3 months?

No LiIon is what is in phones, laptops, etc... but if you let them go real empty they are dead.

I usually charge after I come back from an event then do not worry about it on the radio side. I try and remember to charge the LiIon helis before I go to the field but if I forget I know I have a flight or 2 in them easy.