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Old Nov 11, 2003, 09:43 AM
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cfossa's Avatar
Stow, MA
Joined Mar 2002
1,041 Posts
SwitchBack Battery recommendations?

Hi Guys,

I'm in the market for some new battery packs to power my MM Switchback. I'm using the "stock" GWS EPS-300C motor and 10x8 prop. I have purchased some cheap "no-name" 8 cell 700 NiMH packs in the past, and was not satisifed with the performance. One brand never gave me decent power, and the other brand had decent power but developed black wire "disease" after a few months.

So, I've learned my lesson with cheap packs and want some decent 8 cell 700 mAh NiMH AAA packs for my SwitchBack.

Any recommendations? I'm not ready for the "brushless" jump yet

Thanks,

Carl
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Old Nov 11, 2003, 09:48 AM
Brunswick, Ohio
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Joined Aug 2003
5,736 Posts
get some Kan 650's from cheap battery packs or you could go with the Kan 1050's can't go wrong with either. Just go into his custom battery packs link and decide what you want.
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Old Nov 11, 2003, 09:53 AM
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Colorado Spring, CO
Joined Mar 2002
37 Posts
I recommend 8-600AE for the cheapest go. I tried Kan 950s, the plane feels heavy and does not perform as well, the Kan 650s might be good. It will have pently of power and fly great. You can later move up to 2 e-techs or 3 Etech and a razor. Then you will have power like slimmers.


Rod
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Old Nov 11, 2003, 09:55 AM
Brunswick, Ohio
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Great looking plane!!
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Old Nov 11, 2003, 10:05 AM
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locomoto's Avatar
San Pedro, CA
Joined Mar 2002
660 Posts
cfossa,
Go with the Kokam 2 cell 1500's or the E-tec 2 cell 1200's. When you go brushless, they will also work well with the Razor and other small motors. I'm using both of these in my Switchback Sport with a Razor400, GWS 'B' box and an APC10x7SF prop. I prefer the 3 cell Etec's, though.

Park Flyer Motors has great prices right now on these cells, which makes it difficult to justify a comparable NiMH pack.

Dave
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Old Nov 11, 2003, 10:43 AM
Crash and Build
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United States, NY, Ithaca
Joined Oct 2001
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I have a SB with a razor 400/GWS C box. Also building a Tantrum with same setup.

I am looking at going LiPo for Christmas.

What is the current thoughts on 2 vs 3 cells? Are Thunderpower packs best?
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Old Nov 11, 2003, 11:01 AM
Hooked On Flying!!!
South Lake Tahoe, CA.
Joined May 2003
1,691 Posts
I second the vote for lipoly's. With the cost of the Lipoly batteries coming down they are an exeptional buy now. I have been using etec 1200 2s2p packs for my Switchback Sport & Dandy GT since I built them. They provide great performance and long flight times. The hobby is definitly aggresively moving in this direction, thus the better cost factor. It will also give you packs for you to use in the future should you go brushless. You might also consider replacing the 300 with a 350 motor when your old one wears out. You should notice better performance over the 300 and same replacement cost.
HAPPY FLYING!!!
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Old Nov 11, 2003, 11:03 AM
A Clinger
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Butte, MT
Joined Sep 2001
7,075 Posts
I flew the SB with 8 cell packs of 600AEs and HE1100, and KAN950s. I've settled on 8/9 cell CPB650s (actually I'll be buying 9 cell packs from now on). Lighter than the 600AEs and perform just about as well and oz's lighter than the other packs. I'd stick with the 8 cell packs if still flying stock. I fly a miniAC/16 in mine.... Bought my packs from Cheap Battery Packs as well.

No LiPy for me yet as I'd have to 'gear up' for them (a fire proof area for charging, plenty of venilation (sp), new charger, new batteries, etc...) .... Someday....
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Old Nov 11, 2003, 11:50 AM
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cfossa's Avatar
Stow, MA
Joined Mar 2002
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RClark,

Thanks! I'll check out the CPB 650's as I'm running a "stock" EPS-300 motor. I've been staying away from NiCD with all the reports of burning up motors quickly. I'll settle for a little less performance from NiMH if my motors last longer .

It sounds like the CPB 650's are a good compromise between 600 AE NiCds and 700 mAh NiMh packs.

I appreciate all the other recommendations for LiPo cells, but I too would need all new chargers etc. I'm not ready for that jump yet.

Thanks,

Carl
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Old Nov 11, 2003, 12:10 PM
A Clinger
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Butte, MT
Joined Sep 2001
7,075 Posts
Quote:
if my motors last longer
I don't think the 650s are going to help in that department . Why I went BL. I've now 'saved' money in the long run by going BL with the miniAC and CC P25 ESC. Took less than 1 year of flying to 'recoop' the cost in burned out 300 motors (I was burning them out in 1 to 2 weeks of flying early last year . After 5 (or was it 6?) motors, I got to thinking this is stupid .... ). Plus the performance boost is nice as well..... That same motor is now in my son's Tantrum and still working like new...... Before that it was in his SB3D for about 130 flights before he got his Tantrum. I just bought another miniAC/16 setup a month or two ago to get my SB-3D back in the air which just turned over 500 flights.

Richard
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Old Nov 11, 2003, 12:55 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
http://www.parkflyermotors.com/pfm.htm 650's for $1.25 a cell, or in a pack for $1.50...

Or Etec1200's for light weight... 2 or 3, up to you
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Old Nov 11, 2003, 01:22 PM
Around the World
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Scottsville, KY
Joined Jun 2002
5,641 Posts
Hobby Lobby sells the 1100 X-Cell NiMH's batteries. I've got two packs for my SB. I also use my 600AE. Both packs are 8 cells. I've also purchased two razor motors to put to good use...
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Old Nov 11, 2003, 04:43 PM
Registered User
North Platte, Nebraska, United States
Joined Jan 2003
149 Posts
Rod great looking plane, did you lesson the dihedreal (spelling) in the wing. Steve
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Old Nov 11, 2003, 04:51 PM
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Rod Hart's Avatar
Colorado Spring, CO
Joined Mar 2002
37 Posts
That is a prototype wing I got from Bill Stevens. It is just like the GT except it has tabulators on it but flies the same. I moved from Colorado Spring in June. I miss flying Doug's and Bill's prototypes.

Rod
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Old Nov 11, 2003, 06:36 PM
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Stow, MA
Joined Mar 2002
1,041 Posts
Quote:
Originally posted by rclark
I just bought another miniAC/16 setup a month or two ago to get my SB-3D back in the air which just turned over 500 flights.

Richard
Richard,

Where did you get the miniAC/16 setup? If I'm going to go with the 650's, maybe I'd better plan on a new motor and ESC too

Thanks again,

Carl
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