Ya know what, I give up hey, I just sold the Zippys on another forum and I'll stick to running the Flux as a 4s, it's more than fast enough for me in that form.

It seems ur not safe unless you have 8000mah 40C 3s Lipos and only maxcramps makes those claims!

That's not really true. IMO, unless you go stupid high on the gearing and tire size, high quality 25C/50C 4000mAh cells are more than enough for running the Flux on 6S. The chances that you're going to be drawing 100A continuous is slim to none. 6S 25C 4000mAh packs ideally can output almost 3HP of power continuously. There's no way in hell you're going to be pulling that kind of power continuously.

My bro runs a mmm 2200 on his savage XL conversion on 4000 6s zippy packs. it goes faster than you'd ever want to drive it and has an insane amount of power and nothing gets more than a few degC over ambient... so htfu and start running 6s :D

Another flux down, fried ESC

http://www.e-savage.com/forums/showt...ed=1#post37426

In regards to this comment of yours over there:
"Until then, I would question the Trucks ability to run 3s Lipos reliably at least until someone puts out a better guideline as to what packs we should and shouldn't run."

The truck is just fine on 2 X 3S lipos. IMO, just buy something other than Zippy's and don't gear it stupid high. Mine runs just fine on 2 X 3S Neu 25C 4900's, Badlands and 20:44 gearing.

Yeah mine has been fine on 2 * 2s lipos (2 * 5000mah 30C Harris rc hardcased)

Seems most of these issues are with Maxamps or Zippy lipos?

That thread you posted does not indicate in any clear manner that the Zippys were responsible for the failure, especially since the other truck is apparently still running fine. I love it when speculation becomes fact.

My Zippy-H 5000 mAH 20-30C pack held up fine with a MGM 16018 and a Neu 1515 1.5D, there's nothing wrong with their cells as long as you don't get stupid with them.

I too use a pair of those 3S packs in my E-Revo. Till recently I had punch at 0%, but eased off because drive shafts have started creaking. Waiting till they go completely bust to get a set of the new BLE/Summit CVAs.

ok, the question i got is how can we purchase the MMM's and them reliable enough to run lesser packs? i cant afford some of the prices for "higher end" lipos so i guess i try it and cross my fingers?

Don't get me wrong, I love the Castle Creations stuff, had 3 MM's all were utterly flawless, but the MMM has me concerned.

Is it a reliable speedy, and could I recommend it to people as a reliable speedy?

At the moment, I don't think I could. I'd back the Hobbywing 150A to be more reliable particularly on a 6s config with Zippy lipos.

if you have bottom end packs you just cant expect them to perform the same as top end packs. ie. dont try and draw a ridiculous amount of power from them. Dont try and run a 10kg all alloy emaxx at 70mph. gear down!

I was running an erevo on 7s1p a123 through a MMM geared for 35mph and nothing ever got hot or broke or exploded or whatever, and A123s are notorious for shocking voltage drop. I just wouldn't attempt to gear it to 70mph and expect nothing to go wrong unless I had some top end (ie PQ or whatever) battery packs.

Some people just want to go faster than they need to. I've geared cars to go stupid fast, and its pointless. gets boring very quickly once you do it.

Wow, it seems like the same question is just getting bounced around here.

A zippy lipo is not much different from any other chinese lipo. If you can correctly estimate the wattage output of your setup you will able to accurately pick a lipo that will work.

Hpi includes the 25t pinion to be used with phatline tires to get the advertised 62mph. No other reason than that.

Getting 40mph out of a MT like the flux with 4s is not the easiest thing for a batt. Getting the same mph out of a 6s setup will pace less load on the batt. The gearing will be lower, the output of the motor will be the same (same top speed) and the voltage will be 50% more... So the amp draw will be considerably lower. So while you need a 4s lipo capable of 130-150 amps cont, you can get away with a 100-120 amp cont capable 6s lipo.

This is pretty basic stuff, if you cannot get a grasp on this you may need to go back to nitro or nikko...

The answer is to not expect the performance of a higher end pack out of the low priced pack you can afford. If you can't afford the "Ferrari" then you can't afford it, but you can't buy a "Chevy" and complain that it isn't a "Ferrari", either.
It isn't the low end packs in and of themselves - it is the low end packs being used like high end packs that are the issue. If you want to see the 60mph speed on the box of the ERevo, you need to have Ferrari packs to do it reliably. If you have the Chevy packs, then don't try to reach Ferrari speeds and you should be fine.

Great metaphor!

Or, run two such Chevys in parallel to achieve the Ferrari capabilities :whistle:

i agree nicely explained! i like most people these days can't afford much wanting great performance but with a light wallet i might rethink using zippy packs and look for something else??

what if i ran 2 5000mah 3s zippys to a MMM? would i be seeing the same kind of spiking?

Nah, not even close... Nothing like a ferrari... Not that I really like them that much, but they are fun to drive. Like comparing a 4 cyl sportbike to a built buell. Anything that can turn high rpms and pull stupid speed is in a league of its own..

Ummmm..........I don't understand!

The Chevy packs would be the best ones.

Now if you had said "Ford Packs", I could understand the lower quality.

:rofl:

Well, there have been failures on other packs as well - most recently on a set of Mikes packs. Whether or not these failures had anything to do with the batteries, I'm not qualified to answer. (or if having a different set would have prevented the failure).

I will put the performance of my packs against any other out there. The recent failure that happened to be using my packs is of a different type than described in this thread - the gearing was low enough for even the lower end packs when the failure occurred and seems to be unrelated to the batteries - I am not going to speak for Castle or anyone else on the particulars, but i can say with certainty that my batteries are NOT a problem, as I did pretty extensive testing (almost a year) before offering the packs for sale. :)

I thought that as well (regarding the type of failure), but didn't feel comfortable enough with my knowledge level to say one way or another.

hopefully your not talking about my mistake of hooking up mikes 5s 2500mAh packs in series instead of parallel, that is obviously not the monsters fault when it failed.

And on a side note the packs performance is off the charts!!! Thanks Mike!

right on! rofpimp!:rofl:

Nope....I didnt even see that one! I'll have to look that one up....should make for some good reading!:lol:

ill sum it up for you, i was showing my friend the power of brushless and mistakenly grabbed my series connector that i normally use for my 2s batts instead of my parallel one....truck ran fin for a minute or two, and surprisingly i didnt even no there was a problem until the truck just stopped....just a really stupid mistake.

Could you tell power wise that you'd hooked up 10S? Or did the MMM limit the power enough that it wasn't noticable?

After reading and rereading this I'm going to be err on the side of caution.

Polyquest 6000mah 25C 3s Lipos
http://www.rc-monster.com/proddetail...pq3s6000mah25c
Would they be more appropriate?

Those are some potent packs and are built with Enerland cells. With a 150A continous discharge rate I can't see those not being up to the job.





I
-Brian

You may want to verify that the height of the 6000mAh pack will work in the Flux. I thought the trays were only 30mm, so I'm not sure if it will fit.

The Zippy H everyone uses are 51mm high which is shorter than these, actually the 2s Hardcase Lipos I use are 45mm so should be ok.

The thickness of the pack is what I'm talking about, not the width of the pack.

6000s wont fit. Wish they would, theyre the ultimate powerful lipos :)

edit: oops sorry. wont fit in the erevo, didnt realise you were talking about a flux. dunno how big those trays are.

I now have about 3 months with the 3S 5000 20-30C zippys racing several times a week with two different trucks E-revo and e-maxx using the MMM 2200 combos. I can say these batteries are as good as any other battery i have bought for this application - includes neu energy and maxamps. Yes I gear for 40-45Mph. I have run them however geared for 55mph going up and down the street until we were bored with no issues.
I will point out that when going down to 4S with the neu energies the batts get VERY warm which is ok given the different voltage and increase in current.

I think all of this talk about zippy not safe with a MMM is hogwash. I have 3 MMM and had failures long before i got into the zippy batts.As a matter of fact i havent had a failure since we have been using Zippy's. Are they as high quality - i am not going to even try to argue because i am sure in extreme situations they arent as good as Mike's batts because we are sure they arent.
However I had a buddy open up a zippy-H and compared serial numbers to the PQ - guess what they are similar - their is a belief that these zippy H's are PQ Enerland 30C rejects - thats why they put 20-30C on the batt. for 50 dollars i can buy 3 of these vs a neu energy equivalent. I can say that they seem to be holding up better than the older generation of Maxamps batts 6000 and 8000 i was using till they all puffed. Although we have had much better performance out of the 8400 35C Maxamps (no puffing).
Time will tell for sure - ie how long will these batts last - how many cycles.

In the end its nice to know mike has the best batts if you need them.

I thought the rhinos were enerland rejects or something because the cells are the same size and mah as a lot of PQs. The zippy cells have difference dimensions to any of the enerlands, so I'm pretty sure they come from another factory. That and even hobbycity tell us their cells come from a chinese factory, and enerland is korean as we all know.

Enerland has china factories now too.

I stand corrected. I've still never seen enerland based packs that have a 150x50 footprint. could be wrong there too. maybe all the zippys are in fact re labelled PQ packs ;)

Maybe PQ's are relabeled Zippy packs! 0_o


:lol:

Wow, I must say, I am now thoroughly confused and scared to death...heh!

A few details;
I have a nitro 3.3 Revo that I converted to brushless using Mike's RCM motor-mount and custom carbon-fiber Battery/ESC/RX trays that I made. It has the V3 MMM/2200kV combo running through the nitro transmission with a forward-only conversion, Pro-Line Bow-Tie MTRs on Pro-Line 23mm ½" off-set Velocities, a ton of carbon-fiber, titanium, & other lighter-than-stock parts throughout...and I am also planning on running the brakes & reverse via the motor.

I was planning on running a pair of Zippy Flightmaxx 4S 2650mAh packs in parallel for 14.8v @ 5300mAh, but am now questioning that choice after reading this thread, but wanted to ask a few questions before I make my final decision.

I am not a speed-freak, and I am not going to race, I just want a quick truck that is reliable enough to bash around the yard, in the chert-pit, and do jump-tricks off of my ramp...maybe 35-40mph max. Right now, besides the batteries, my biggest question is gearing, and about the transmission...

...is the overall gear-ratio of the nitro Revo transmission any different than the E-Revo transmission? If so, what spur and pinion would you guys suggest for my setup and what I want out of the truck, as well as if the ratios are the same for both transmissions? Like I said, I don't want all-out speed, just 35-40mph and reliability enough to do what I said above. As for the batteries I chose, I believe they will work just fine for my needs, but I really want to make sure before I damage something, and I would really appreciate help from you guys since you really know your stuff.

Thank you so very much for any help you guys can provide, it will be much appreciated!

P.S: I am going to run a set of Mike's V3 1/8 Revo Hybrid Diffs (buggy ratio) in the future, so I may need some help selecting a spur/pinion for that setup as well...