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9303 and lipo's

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Old 12-30-2011, 07:15 PM
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trioval00
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Default 9303 and lipo's

ok, need some technical advise. I have a 9303 with a battery that needs replacing soon. I now have a 2700 nimh and she is tired. In todays world Lipo's are the way to go. As I am slowly switching all my jets to Life brand Lithium iron batteries..

Question is, can I use lipos in my 9303 and how do I charge them?

Duralite has a Lithiuim-ion 1400 mAh 6 cell 11.1 volt dedicated for the 9303. BUT the JR manual says the 11.1v will over heat the transmitter and can or might cause failure.

So? I would like to go to Lipo's, is there another brand or size that would work? What are my options?


Mark
Old 12-30-2011, 07:20 PM
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Default RE: 9303 and lipo's

I had a lipo in my 9303 and loved it! I would take the battery out when I needed to charge it.....which was like once every 8 or 9 months (seriously). I charged it with a normal lipo charger.

On the other hand, I use an Eneloop pack in my 11x since Horizon says no way to a lipo in the 11x.... Actually it's the initial voltage of the pack when fully charged that the radio can't handle. I found that out the hard way when I tried to put the lipo from my battle tested 9303 into my 11x when I got it.
Old 12-30-2011, 07:22 PM
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trioval00
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Default RE: 9303 and lipo's

VKGT. do you know which battery you used in your 9303?
Old 12-30-2011, 07:27 PM
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Default RE: 9303 and lipo's


ORIGINAL: trioval00

ok, need some technical advise. I have a 9303 with a battery that needs replacing soon. I now have a 2700 nimh and she is tired. In todays world Lipo's are the way to go. As I am slowly switching all my jets to Life brand Lithium iron batteries..

Question is, can I use lipos in my 9303 and how do I charge them?

Duralite has a Lithiuim-ion 1400 mAh 6 cell 11.1 volt dedicated for the 9303. BUT the JR manual says the 11.1v will over heat the transmitter and can or might cause failure.

So? I would like to go to Lipo's, is there another brand or size that would work? What are my options?


Mark
I have been using 3cell 2500mah batteries in both of my 9303's for the past 4 years. I have read about the concerns regarding the higher voltage but I have not had any issues. There are several threads regarding the use of one or more diodes, in line with the Tx battery, to drop the voltage. These can be purchased at electronic stores like Radio Shack. You can also charge the LiPo to a lower voltage if you are concerned.

I prefer LiPo Tx batteries because they can be charged quickly and the charge lasts for months. I charge once a month, for less than 30 minutes, with my FMA 10S charger.
Old 12-30-2011, 07:28 PM
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Default RE: 9303 and lipo's

Just opened up to look at it... I'm running a Flightmax 2500 3S pack from Hobby King. 03C series.


It's been over a year since I've used this radio and the voltage is still at 12.3v It's since become my sailboat radio
Old 12-30-2011, 07:36 PM
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Default RE: 9303 and lipo's

Mark, go with the Eneloop pack in your tranny, been running it in my 12x for about a year now and a single charge lasts 15+ hours of ON time and they have a 1000 cycle life, and being they are NiMh, they work perfectly with the TX.

Chad has a huge thread about them in the jet forum, give it a look see, most of the jet guys are running them.
Old 12-30-2011, 08:05 PM
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Default RE: 9303 and lipo's

well, after alot of reading here in the past hour, I think my choice is going to be an easy one. Zippy Flightmax 1800 9.9 pack.

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