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GrandRC . CanoMod . Futaba-RC

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e-BEAM Beam E4 > Lipo Lottery?
 
 
Terrabit
Senior Heliman
Location: Seattle, WA - USA

My 3s Evo 25 2170's are getting tired and lazy. And I'm broke because of my heli-habbit binges. (Intervention anyone?) So, I need some Q U A L I T Y 3s lipos, C H E A P !!! What's up sloppy? What's the word on the street? Who's got it? Who's the doctor man?

Sorry!

What I want to know is ... are there good deals to be had on less popular brands? I've spent a couple $k on FP stuff and roughly $1k on TP stuff. That's all I've really ever used except for some crappy Align 3s lipos when I first started. I've been very happy with FP and TP stuff. but it's damn expensive. There are a ton of newer companies making lipos now. So, where do I get the most bang for my buck?

I don't ask for much. I just want it all, I want it now, and I want it free!

Capiche?
07-15-2008 09:36 AM
 
 
MrNiceGuy
Senior Heliman
Location: Rockledge, FL

Outrage are supposed to be better than FP and TP and are a bit cheaper. I have actually been flying with some Esky batts for my T-Rex 450se and they have been working really well and I only paid $43 a piece for them. I needed something so I could fly while my Airthunders are out for warranty work. I bought them from Ka-planes.com and the guy said he hasn't had one pack come back puffed. I only have a few flights on them but I have been happy with them so far.
07-15-2008 01:14 PM
 
 
pixturethis
Heliman
Location: Wichita, KS USa

Rclipos.com. Will give you %10 off an lipos. I bought some thunder power 1900 batts for I think $48 each.
They will treat you really well.
07-15-2008 01:49 PM
 
 
beeflyer2
Key Veteran
Location: Woodstock, GA - US

If you want quality, look at FMA Revolectrix packs. Very consistent performance and very good cycle life. I also spent a ton on TP and FP, only to have every single pack lose it's punch after less than 100 cycles. My FMA packs are still kicking ass after 200 cycles.

PM me for details on getting a discount.
07-15-2008 02:17 PM
 
 
Brovic777
Elite Veteran
Location: Los Angeles, CA

One brand that didn't seem too bad was Protek. I used a pair of 3000mah's on my Trex 500 and they rocked.

http://www.amainhobbies.com/product...oducts_id/16868



Killer Beam E4 450
Check out my HD Gallery
07-15-2008 04:17 PM
HOMEPAGE  
 
 
jamesppp
Senior Heliman
Location: carrollton georgia usa

Check out the packs at Xcite. (Xcitebattery.com) I think. The 3S 2200mah packs are 25C and 2 for 100 dollars almost all the time. The other packs are 15% with a code this month(July4sale). They have great customer service..and I mean great.

These batteries have been working perfectly for us. The 20C 5S packs are what I started using as I never had a 450 size heli untill recently with the Beam. Im charging the 3S packs pretty fast with my new Cellpro 10S charger and graphing the data on a laptop so I dont have longevity data yet but I will.

I was dissapointed in my 5S Evo FP packs. I ran one with less than 20 cycles into a soft cut off one time and the end cell puffed big time. This is a 209.00 pack. The Xcite 5S packs havent slowed down yet.

I believe there is a 90 day unconditional warranty and 1 yr warranty. Im shooting from memory here so check it out
07-15-2008 05:53 PM
 
 
paintball_kidz
Veteran
Location: Surrey, BC Canada

depending on your setup, get your self a 30C lipo.

I will build your heli for free.
07-15-2008 08:46 PM
 
 
Terrabit
Senior Heliman
Location: Seattle, WA - USA

I just picked up a pair of 3s 33c 2200's from http://performanceplusrc.com/33c_lipos. (These use the same sells as Outrage and Desire Power) WOW!!! I had to dial back my t-curve from 90% down to 70% to keep my headspeed at 3100 rpm. Seems to be about 30% more power and NO bog!
07-20-2008 06:00 PM
 
 
Vinljp
Heliman
Location: Singapore

Signs of Bog Down

Hi Terrabit,

Can I check with you what are the signs of heli bogging down?
Is tail swing one of them? I often get that when I am doing a loop.
07-23-2008 06:50 AM
 
 
Terrabit
Senior Heliman
Location: Seattle, WA - USA

Yes! Manuvers that draw significant amperage from poor performing batteries can cause headspeed to drop or bog. You would hear a coresponding dip in the sound coming from the motor/rotors. If sufficient, the heli can become quite unstable. It might vibrate or wobble and the tail would likely break loose in a flip, roll, loop, etc.

Helis need a minimuim headspeed relative to the combined pitch of all rotating surfaces to maintain attitude control. However, there are other contributing factors to consider. Proper motor kv, pinion, ESC, total pitch, even the connectors can cause problems that might look like bad batteries.

An easy way to see if it's the battery is to try one that you know is good. If you notice a big difference in performance, you'll know it's the battery.

Good luck!

Mikado, Kontronik, Scorpion, JR, FP
07-23-2008 07:51 AM
 
 
Vinljp
Heliman
Location: Singapore

Thanks for the Info Terrabit !

I am currently running on these setup

Motor: Z10A, 3000kV from Z Power
ESC: Quark 33A
Bat: FP EVolite
Pinion: 14T

I should be getting about close to 3000rpm.

I am doing simple flips and rolls, not hardcore 3D.

What do you think of this setup?
07-23-2008 10:27 AM
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

I'm running the xcite packs as well, in my case 4s 2200s in the Beam. Great packs at a cheap price, I couldn't be happier with them.


Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
07-23-2008 01:20 PM
 
 
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e-BEAM Beam E4 > Lipo Lottery?
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