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Battery Upgrade - 8/17/2007 7:41 AM   
AKSUMMIT8


 

Posts: 35
Score: 105
Joined: 7/19/2007
Last Login: 2/6/2011
From: Peters Creek, AK, USA
Status: offline 		I am looking to upgrade in the TX/RX battery dept. What would be a good set-up for a Futaba 7Cap.

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RE: Battery Upgrade - 8/17/2007 8:15 AM   
rcluver


 

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Joined: 7/12/2004
Last Login: 11/14/2011
From: Thomson, IL, USA
Status: offline 		AK, I upgraded mine to the Hobbico Hydramix batteries. Get alot more run time. You can get them from Tower Hobbies. Not too expensive.

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RE: Battery Upgrade - 8/17/2007 2:33 PM   
CGRetired



Posts: 8935
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From: Galloway, NJ, USA
Status: offline 		Go to RadicalRC.com ( http://radicalrc.secure-mall.com/shop/ ) and to their battery department (when you click on the battery department, the battery selections will appear below but it will look as though the page did not change. Select the type battery you are looking for and another screen will pop up with a large selection of batteries). Any battery that is larger (capacity) than your RX and TX battery will work. They have a selection of all shapes and sizes (physical) and sizes (capacity).

I up'ed the capacity of all my RX batteries using 5 cell 1200 mah NiMH's from my local hobby shop too. The 5 cell 1200 mah NiMH are light and work just fine. For the TX, I have 1650 mah 9.6 volt packs, but these are NiCd packs. My larger planes, Venus II, Excelleron 90, and Tiger 120 all have two battery packs each, two switches (independent systems) plugged into two separate RX channels.

If you stick with four cell RX and the standard 8 cell TX batteries, you should be just fine with the wall wart charger. If you move up to the 6 volt (5 cell) RX packs, though, you will need to update your charger to one that will handle the 5 cell packs. Sirius, Triton, Ice, among others are good chargers for those battery packs.

I might add that Dave Thacker, the owner of Radical RC has a very large FAQ section on batteries. It is great reading because he is both frank and up front about battery packs of all sorts.

DS.

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Skylark 70 - OS .75 AX; Excelleron 90 - OS 1.20 AX; Venus II - OS 1.20 AX; And, I still fly my trainer, Hanger 9 Alpha - OS .46 FX! Some electrics. Airtronics RD8000 - Spektrum DX7 - DX6i. AMA 705964.
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RE: Battery Upgrade - 8/17/2007 7:11 PM   
ro347


 

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From: Nutley, NJ, USA
Status: offline 		Just got 1650 MAH NIMH for tx and rx from Radical RC. I used to have to change my RX packs after about 4 flights.....I flew about 8 flights yesterday....my voltwatch was still showing full charge. Definitely worth it.

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RE: Battery Upgrade - 8/17/2007 7:17 PM   
CGRetired



Posts: 8935
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Joined: 9/14/2004
Last Login: 5/19/2013
From: Galloway, NJ, USA
Status: offline 		Yup. I use a dual battery setup in my larger planes and fly all day without recharging. But, I do keep a close watch after the third or fourth flight, even though I know there is plenty of charge left. Just a precaution, I guess.

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Skylark 70 - OS .75 AX; Excelleron 90 - OS 1.20 AX; Venus II - OS 1.20 AX; And, I still fly my trainer, Hanger 9 Alpha - OS .46 FX! Some electrics. Airtronics RD8000 - Spektrum DX7 - DX6i. AMA 705964.
Semper Paratus!

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RE: Battery Upgrade - 8/17/2007 11:29 PM   
Missileman



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From: Poland, OH, USA
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quote:

ORIGINAL: rcluver

AK, I upgraded mine to the Hobbico Hydramix batteries. Get alot more run time. You can get them from Tower Hobbies. Not too expensive.

I second the Hydromax, great batteries at a reasonable price.

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RE: Battery Upgrade - 8/18/2007 12:27 AM   
BarracudaHockey



Posts: 18350
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Last Login: 5/17/2013
From: Jacksonville, FL, USA
Status: offline 		Hangtimes.com get a nobs batteries transmitter pack, charge once, fly all weekend.

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