60C really?

[_paralyzed_]

Maxamps Austin: Please take a look at the discharge graphs Everydayflyer has posted in RCGroups. If you were to allow him to test one of your packs using the same methods he used to test previous packs we would have a real world comparison and be able to make an informed decision about the batteries we purchase.

Conversely, you could get some higher end packs such as Thunder Powers or Hyperions and test them yourselves using your methods and show how they compare.

There are ways to back up and substantiate your claims, that is all we ask.

I hope you read this, and RCM Monster Mikes post, as the majority of us don't wish to argue, rather exchange facts. I sincerely hope you can ignore the nay sayers (there will always be some) and rejoin this discussion so we all can learn the truth about these matters.

- _paralyzed_ out

[suicideneil]

Originally Posted by Big Bob

The way I see it, there isn't nobody holding a gun to anyones head to buy Maxamp Batteries

Correct, but using so much advertising that it increases the cost of the packs is bad practice. If a noob only sees adverts for one brand, then who are they to know that opther brands are better value or better performing.

, if you don't like them then go by another kind or go buy some of those Hong Kong Zippies

MA lipos are from china, thats the point, they just assemble them in the USA. That doesnt fully explain the massive price hike though.

I have been running them for years and will continue to run them.

What vehicle/driving style/setup/ any eagletree graphes or comparative data with similar spec'd packs from other brands?

I don't know what the fuss is, they are still the same batteries they were a month ago.

Not according to MA, they suddenly have new cells that can perform better than anything on the market, though there is no proof of that claim.

I don't think anyone on this forum can tell me what CONSTANT RATING IS or STANDS FOR, because there isn't one RC vehicle in this world that has a CONSTANT AMP RATING????????

Planes, helis and boats pull pretty constant loads as they are at a constant throttle level for long periods during a run, that is why a C rating is useful.
The issue is that MA says a C rating has no use, yet insist their new method of rating a cell is better than the continuous method use for years, by every other brand out there. A burst rating is equally useless, as no R/C out there pulls a constant burst of current The point of a burst is that it lasts for 1/2 a second or so at most, where as the average current draw (achieved when full thorttle is hit down a straight for example) is the more is more useful to know; hence why a continuous C rating on a lipo pack serves more purpose than the burst rating, but also why its good to have both, as most lipos do.

Anyways, the C rating on a lipo is the level at which the voltage doesnt drop below a certain point at any given discharge rate- I've explained this countless times, with worked examples. The only thing in question is the voltage at whnich the lpo must hold stable for that given current draw, but 3.2v - 3.5v is a safe level- see the other thread that sproutted from this one regarding a petition for standardized ratings.

Are you from the traxxas forum by any chance?...

[Unsullied_Spy]

I'll toss in $5 to buy everydayflyer a new MA lipo I'd truly like to see how they stand up against the competition.

Mike,

Thanks for you posts. As you know, I have loads of respect for you and anything you are involved with. I really appreciate you jumping in here.

I did NOT start this thread. I am not trying to "sell" anything here. I was just trying to explain the new testing method and rating system that we are currently using since there seemed to be a lack of understanding with regards to why we would use the new system.

Some of you guys agree with it, some don't. You all will buy whatever products you want to buy regardless of what I say.

Donating a pack to someone here will do nothing to help explain our new rating system. We changed our rating system....not our packs. I am not here trying to "prove" anything. I just jumped in on this thread to help explain our rating system and why we use it.

If I was the thread starter and started the thread with "Why don't you all just buy MaxAmps packs because they are the best" then I could see the need for your negative posts. Some of the posts in this thread that have been deleted were way, way over the line. Frankly I get a kick out of some of it because it is very creative:)

If someone here wants to test a pack, we offer a 30 day money back guarantee. Feel free to take advantage of it if you wish and it will not cost you a dime. You might just like it and end up keeping it:)

Best Regards,

Austin Else
CEO MaxAmps.com

[hoober]

Charles has around 1kw + capacity to test. I only have 500 watts , but am willing to send 400 watts to Charles to add to his. He can add it right in with his two cc-400 units.

I'm very close to pulling the trigger on another 400 watts myself anyways, and there are some others who may have a couple kw capacity. I can also add on a couple hundred amps to my cba graphs manually for graphing over 60C.

This brings up some questions about cell count and current. Why not test a single cell at 60C and a 3S or 3s pack at whatever current Austin says is ok? Whoever has the biggest Maxamps discount take the donations and buy the battery. I will ask Charles if He's willing to do it. I wouldn't hold my breath. If He is not I am willing to test it , generating a normal CBA graphs.

Start adding some numbers 5250 x 30C = 158 amps x 3.5 volts = 550 watts (looks like I will need that other discharger) Is anyone in favor of going higher?

[ClodMaxx]

Originally Posted by austinelse

Donating a pack to someone here will do nothing to help explain our new rating system. We changed our rating system....not our packs. I am not here trying to "prove" anything. I just jumped in on this thread to help explain our rating system and why we use it.

i think feathers got ruffled partially by the claim 'It will maintain higher voltage under load than any other LiPo battery pack on the market'. no rating system in the world... effective and accurate or otherwise... makes that true, unless you have something to back it up with. if you do - prove it and post your graphs with comparisons with other top notch brands, and i can guarantee just about everyone here will eat crow and buy a pack from you personally.

that is a false claim... and a misleading one, if you have no proof.

I'd be more than willing to kick in a few dollars to help w/ the purchase of this new pack and have it tested. It would really help to answer the questions we all have in regards to how it stands up to packs w/ known parameters.

If the test goes well, it would go a long way towards repairing the trust factor that (at least for me) is lacking in purchasing MA products.

[hoober]

Donation post , if you guys edit your post with the amount I will add it in.
dezfan $20
Unsullied_Spy $5
nitrostarter
lincpimp
FastXR
Bondonutz $20
rawfuls
FastXR $10

Now we are talking:)

ClodMaxx-

You absolutely have a valid point with regards to that statement. I am going to have my web guy change it to say "It will maintain higher voltage under load than any other pack that we have tested". Since we have not actually tested every single pack on the market, the way we have it worded now is untrue. I appreciate the CONSTRUCTIVE criticism. I did not realize that it was worded that way...

Best Regards,

Austin Else
CEO MaxAmps.com

[Bondonutz]

Originally Posted by hoober

Donation post , if you guys edit your post with the amount I will add it in.
dezfan
Unsullied_Spy $5
nitrostarter
lincpimp
FastXR
Bondonutz $5
rawfuls

Put me in $20.00,
Time to put up or shut up, Lets do this test !!!!

Put me down for $10, I think this is going to be kinda fun. Wonder if the 30 day money back guarantee will apply to a pay that was "tested" in the way it will be.

[Bondonutz]

Originally Posted by FastXR

Wonder if the 30 day money back guarantee will apply to a pay that was "tested" in the way it will be.

Originally Posted by austinelse

If someone here wants to test a pack, we offer a 30 day money back guarantee. Feel free to take advantage of it if you wish and it will not cost you a dime. You might just like it and end up keeping it:)

Best Regards,

Austin Else
CEO MaxAmps.com

I say we donate the test pack to the tester for a honest video recorded test

[Finnster]

Any reason everyone is determined to test this particular pack? They have changed the rating systems for all of there packs it looks like. If you got a smaller mah pack of similar rating, you would not need such large equipment to test it.

[Finnster]

If it wasn't so absurdly expensive, I would get this pack and test it in the same CRT.5 setup as I tested the zippies and the Neu 30C packs.

What is odd is that this battery looks exactly the same but the ratings are different (and seems somewhat arbitrary.)

Pack #1:# 2200mah Capacity
# 14.8 Volts
# 34mm X 99mm X 32mm
# 25C Constant(55 amps)
# 35C Sustained(77 amps)
# 60C Burst(132 amps)
# 220 grams

Pack #2

# 2200mah Capacity
# 14.8 Volts
# 34mm X 99mm X 32mm
# 50C - 1620 surge watts(110 amps)
# 220 grams

Both for $115ea. >_<

Which would be the more fair pack to test against do you think? I have an Eagletree and a radar gun to get real world figures as well.
It wouldn't be fair to compare against the 30C 2500 Neu pack, but the zippy pack I already have data for, and its last years zippy-h's anyway.

Neu pack #1:
NEU2100XP 4S1P

NEU2100XP 4S1P 14.8volts
1C Charge
25C/50C
$44.00

or
Neu pack #2:
NEU2100EP 4S1P 14.8 volts
1C Charge
30C/60C
$60.00

[jpoprock]

You know, I'm a small business owner. So what right? Well, I see this little debate as wildly amusing. Why? Because even though you guys have seeming good intentions, when it comes to "keepin 'em honest", It's stunning to me at what levels you will take it! Because to me MA is only playing by the same rules as everyone else. The difference is, they are still small enough to be accessible! Try blasting Integy for selling over priced JUNK, start ripping Traxxas and you'll be banned from their forum for life. Try attacking Allstate, State Farm, GM, Ford, Apple, Microsoft, and the list goes on. Do you honestly believe their claims, advertising campaigns, slogans, can be validated by consumers? Maybe or maybe not. I may have my opinion, but millions of other consumers will beg to differ. And those companies all operate under state and federally regulated guidelines! MA is operating with no real set guidelines, but believe that what they are doing is good. No where does it say that consumers have to agree right? We all have choices to make. The big guys are the easist targets to go after, and it's human nature to want to.

My point is this, even if you test the pack and it misses "your" mark, who cares because "your mark is your mark". Your method is yours, and theirs is theirs. Who wins or loses? Sounds like a lot of wasted time, ego, and posturing to me. Is it going to change anything REALLY? Maybe to you guys, but not them, and certainly not the majority of the buying public. Even if you went on a relentless smear campaign, people will look at you the same way many look at conspiracy theorists... Which is "I don't understand any of this, and don't have the time to find out for myself" which is exactly what the Govt wants you to think. It's too far fetched and complicated for me to prove or understand, so I'll continue being spoon fed what's easist to digest. Maybe that is what's wrong with society, but it is the way it is, like it or not.

Do you think RC Driver, XRC, or RCAction are going to give a rip what the boys at RCMonster said about MA, when a fresh shipment of brand new Lipo's show up for them to run in their test cars? NO! It's only going to matter to you guys, who aren't even hip to MA batteries anyway!

So no, I wld never expect Austin to send anyone here a free pack to test, because he doesn't have anything to prove to you really, and more importantly because it's pointless to. Win or lose, you will still lose and he knows it.

Frankly, I have better things to worry about then if MA is screwing me out of some continuous burst rates. I'd rather watch anything on History Channel, than to spend time worrying about a battery!

That being said, I'll gladly sit back and watch this episode infold, then turn out the light, and go bed. And mind you, I've never owned, and probably will never own a MA pack, because I need my Lipos in pairs, and just cannot afford those packs. But if people are buying the crap out of them, and the public perceives MA as being the best, then give the Marketing guy a raise, cuz guess what? Not every consumer is as educated as some of you may be on batteries, and people love to buy what is perceived to be the "best". And that is why the State Farm's, Apple Computers, GM's, and Honda's of the world survive. Quality is one thing, but perception is EVERYTHING.

Gotta go, time for Ice Road Truckers!

Jason (no, not MA Jason!... DOWN BONDONUTZ, DOWN BOY!)