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All Forums >> RC Helicopters >> Electric RC Helis >> Esky Helicopters >> Zippy's lipo's
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Zippy's lipo's - 7/15/2008 2:01 PM   
Fly To Chill


 

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From: Palm Bay, FL, USA
Status: offline 		Will this work on my Belt cp?
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6306&Product_Name=ZIPPY_2200mAh_3S1P_20C

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RE: Zippy's lipo's - 7/15/2008 7:41 PM   
chris6414



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Status: offline 		Bad link. Length is usually is not an issue. No wider than 35MM and thicker than 25 MM and you should be GTG

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RE: Zippy's lipo's - 7/15/2008 10:32 PM   
Fly To Chill


 

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Status: offline 		http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6330

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RE: Zippy's lipo's - 7/15/2008 10:43 PM   
funflier


 

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Status: offline 		Your not allowed to link to Hobbycity in these forums, other venders are ok but Hobbycity is a no no.

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RE: Zippy's lipo's - 7/16/2008 12:06 AM   
Fly To Chill


 

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Status: offline 		WHY NOT!!!! what is that all about?

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RE: Zippy's lipo's - 7/16/2008 7:24 PM   
kianhon


 

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Status: offline 		This forum is just too unique for a cheap and good stuff. The zippy Lipo will work fine, I personally own x5 11.1v 2200mah 20c cheap Lipo (all only cost me $20 each) offered by hobbycity and they all work out for me so far. Just remember that you are paying only $20 bucks for a Lipo, I mean how bad can it go? Plus they have a 30days no puff refund, and their customer service is great. Unless you wants to go for a $40-$80 Lipo for the same specs that I have, that will for sure 100% work out.

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RE: Zippy's lipo's - 7/16/2008 8:47 PM   
Rosebud6


 

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Status: offline 		I have 2 of the ABF 2200 20c ( actually a 2100) lipos from hobbycity and they worked great in my HBK2 (tad bit heavy) and work excellent in my EXI 450.

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RE: Zippy's lipo's - 7/17/2008 4:40 AM   
Fly To Chill


 

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Status: offline 		Thanks guys the 2200 20c are what I was looking at ,thanks again.....

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RE: Zippy's lipo's - 7/17/2008 5:13 AM   
noobflyer01


 

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Status: offline 		yeah its the reason we lost our dear friend nuttcaze. the forum deleted his post because hobbyc. since all you guys have positive feedback on hobbyc....i will defintely stock up on lipos from them. ... this one for you nuttcaze.


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RE: Zippy's lipo's - 7/17/2008 7:36 AM   
kianhon


 

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Status: offline 		Seriously, why this forum don't allow hobbycity links?

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RE: Zippy's lipo's - 7/18/2008 3:38 AM   
dicharry


 

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Status: offline 		Maybe this link will be helpful :

http://myhobbycity.com/showthread.php?t=750&page=2

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RE: Zippy's lipo's - 7/18/2008 3:43 AM   
dicharry


 

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Status: offline 		Now I would like to know why the forum does not allow hobbycity links. My link had to do with a certain company's attitude toward lipo puffing.
Are there any members who know what causes puffing? I've had cells puff after one flight and others last for many many flights then suddenly puff. I guess it's CO2 gas that is released in the chemical reaction, but that's strictly a guess.

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RE: Zippy's lipo's - 7/18/2008 4:13 AM   
Rosebud6


 

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Status: offline 		I believe its because Hobycity has it where some people make money from links they post. RCuniverse didn't like that apparently.

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RE: Zippy's lipo's - 7/18/2008 5:09 AM   
Zimatosa


 

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Status: offline 		Ask Nuttcase!! That link made him a whipping boy for the mods! Pissed him off enough to never come back here...

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RE: Zippy's lipo's - 7/18/2008 10:14 AM   
funflier


 

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Status: offline 		I would like to think its due to the cells not being properly balanced before charging. Ends up one cell gets overcharged and puffs it up but I could be wrong on just how that all works as I'm old and still think batteries are magic and operated by spirits...same as the gyros on some helis

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RE: Zippy's lipo's - 7/18/2008 11:54 AM   
dicharry


 

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Status: offline 		Maybe it is a balancing issue, but I always charge on a balance charger, and I've seen the cells puff during a flight . or at least show a dramatic change from preflight to postflight. How dangerous is it to continue to use a puffed pack ? I think heat is a major factor in puffing because the packs I pull from the heli that show puffing are pretty warm.

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RE: Zippy's lipo's - 7/18/2008 4:55 PM   
dicharry


 

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Status: offline 		Good information on lipos including the chemical reaction :

http://www.hardingenergy.com/pdfs/LiPolymer.pdf

Still don't know what the gas is and what causes it to form. It appears not to be part of the normal reaction.

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RE: Zippy's lipo's - 7/20/2008 5:40 AM   
funflier


 

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Status: offline 		unless the cells are defective the reason they may puff up during flight is they were not balanced before being charged so on say a 3 cell pack maybe 2 cells are fully charged and one cell is not quit charged up then the current drain (or could be excessive current drain)pulls all the cells down the same amount however as one cell started off low it is overheated and then puffs up. This can also happen if you have a motor that can pull down some serious amps and your batteries are not rated for that kind of current draw. As I remember the old saying was your batterys need to exceed your ESC and your ESC has to ecceed the rating of your motor.
Only battery I had puff up on me bad was one on a lama last year and I blame it on the Esky charger/balancer as I know they do not do a good job of balancing the battery. I always balance my batteries before I put any current to them and if they are below specs I charge at about .5 amp till I fell it is safe to charge them at 1C (I usually bring them up to about 11.5 before I hit them with the 1C). Never had a problem with them puffing up since I did that.

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RE: Zippy's lipo's - 7/20/2008 5:49 AM   
[]TEX[]



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Status: offline 		Poor manufacturing is one main cause of puffing. Cheap batteries will puff even when taken care of. Buy cheap batteries with the understanding you might only get 5 cycles from them.

Secondly, HobbyCity is banned due to spamming.

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RE: Zippy's lipo's - 7/20/2008 6:00 AM   
funflier


 

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Status: offline 		ahh forgot the cheap batteries and thats all I buy now (knock on wood)
Thanks info I wondered myself why no one could post a link to them, Figured it was something like that, someone once said something about they were paying commisions for there link being posted also but that was heresay.

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RE: Zippy's lipo's - 7/20/2008 6:26 AM   
KCinNC



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Status: offline 		i just recieved 4 of the 1000mah 7.4 15c for my HB.....i got 15 minutes of FFF with 3.7 left in the tank..

i just ordered some more

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RE: Zippy's lipo's - 7/20/2008 8:58 AM   
kianhon


 

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Status: offline 		20 bucks Lipo may puff anytime or may be even have less Life Time Cycle then those branded. But if you do the math, 1 thunder power = 3 cheap Lipo (still have couple bucks to pocket in), and the possibility for three of the cheap Lipo to go bad together before it should is really slim. So I guess although they are not as reliable as those $80 Lipo, but at least you have three to bet for it and the odd is on your side.

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RE: Zippy's lipo's - 7/20/2008 4:14 PM   
darthdrk



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Status: offline 		Im flying the zippys in my scale helis. I have many cycles on them and they have been charging just fine. I bought one of each 3s 2200, 1800 and 1500 20C batteries. guess what, Im gonna buy some more. It may be the luck of the draw but I like them and is getting some more. I cant see spending $80 bucks on 1 battery pack when I can spend the same and get 4 of them. I bought a Lipo battery pack from my LHC, spent 70 bucks and comes nowhere near the performance of my Zippy.
Oh yes, about companies paying people to post to forums about their positive buying experience, yes, it does happen. I recieved a email from a company asking me to do just that and if the post recieved x amount responces, they would give me $50.00 rebate on next order. Personally, I asked myself, is it really that bad? As far as hobby city, I think they had done the same thing or simular in the past, I can remember reading it on their site. If you have something thats good, people are going to talk and share. What i dont like about the practice is that you may end up getting someone to post a bunch of flowery stuff so that it reflects highly in a positive way when in fact the product may not be all that. If you take away the incentive will the same words still be spoken. There are companies that have their people scouring the forums and is paying forum members to push their products. Ive talked to one after the company fired him and no longer is the enthusiasm there about the companies products, as a matter of fact, he came clean about a few of the practices. So, you probably will not ever know whats all going on behind the scenes.

I wanted to add that Ive worked in manufacturing for a while years ago. Some people do not realize the same people producing batteries may be doing so for several different companies. Using the same batteries but putting a different label on the packages. I work for a company which did exactly that. Only thing we did was use different labels and paint colors to distinguish between the two. And guess what one product cost more(Lots more) than the other and they were identical and made by the same company I worked for.

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RE: Zippy's lipo's - 7/20/2008 8:53 PM   
[]TEX[]



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Status: offline 		Low amp draw on these batteries, like in scale flight is fine. During aggressive 3D flight they don't last.

I would be interested in seeing who has good experience with Zippy and what skill level they are flying at?

I would guess nobody is flying 3D, especially in the Esky forum.(no offense)

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RE: Zippy's lipo's - 7/21/2008 9:53 AM   
funflier


 

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Status: offline 		Thats true Tex but this is in most cases a beginners heli. Many people seem to have cut their teeth on a King FP or CP then moved up to a Trex Raptors etc. Nice thing about these little kings is they don't have many high priced problems and they are great "bumper car" helis, crash it and you dont break the wallet repairing it. This train of thought that its easy to fly and cheap to repair (compared to say a trex) makes you more likely to try up the learning curve with trying new manuvers that you may be a little timid to try with a Trex 450 V2 at more then a 500$ investment.

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