So what happens when I put 150c to this pack and it blows up in my face? You gonna admit then it was overated? Pretty sad if that's what it would take. We asked for proof and it was said that it would be given and then we get this weak sauce graph of a less than 10c discharge? Pretty insulting if you ask me.

I will post the other graphs and videos shortly. Here is the information on how we rate our cells. (added to the website shortly)

*Please note this is a cell rating, as you know Deans and Traxxas connectors can only handle around 70 amps continious.

Our 150C Packs
150C - Maximum burst rating without swelling or damaging the cell. This is a 1 second burst.
100C - Maximum sustained burst rating without swelling or damaging the cell. This is a 10 second burst.
75C - This is the continious rating that the cell can handle through the full discharge without swelling or damaging the cell.

Expected
 

Truthfully that is pretty much what I expected they would show us. This is like advertising a brand new Corvett being able to do 200mph and then posting video of it tip toing through the park at 15mph with the top down. This is your example of what a 150c LiPo pack can do? Really? Are you kidding us? Marketing director?? I think you better pony up and really put these packs to the test if you expect to impress anyone in this market today.

MonsterMike please do some real world playtime with your packs and share some honest info with us (negative or positive). This is rediculous.

I just got back from iHobby so please be patient with me as I upload all the graphs and videos we have.

I have a video of our maxamps.com batteries starting dragsters with 1000+ HP engines. So I think you will be impressed with their performance.

PLEASE SHOW THIS, DIRECT SOLDER. No BS Plug excuse. EDIT: what can the 12awg wire handle?

:yes:

:lol:

Good enough for me. We could have avoided all this hubub by just postin that in the first place. Why delay? Whatever, those specs seem halfway realistic but due to my past experience with ma and the usual reluctance to provide actual proof, I will believe it when I see it. Still a 75c constant is 487.5 amps. Let's see that graph. I will try to refrain from posting and wait patiently for these graphs and videos. As for the dragsters being started, uh yeah....

Mr. Wilcox, have you familiarized yourself with this site and it's people before coming here? This graph is ridiculous. Please stop insulting the intelligence of the well informed people in this forum and give them real proof, real data, real test results.

True DOES NOT mean "only true for 1 second." Only true for 1 second means sometimes true. Anyone with a college degree knows that implicitly and anyone who has taken an LSAT knows that explicitly.

Well, I am satisfied. This was just another trashy hoax. Thanks again Maxamps.

NM, didn't see the paintshop pic...


edit: if that is a accurate graph, your only getting 4800mah out of a big @$$ brick of a pack... at only 1\20 of the C rating...


sooo...

6500-4800= 1700mah was lost as heat...


did the pack come off at 100*+???

If MA wants to clear their name they can send me two 2s packs, I can wire them in series and run them in my truggy, then run them in my brushless SC10, and a stock slash, all while hooked up to an Eagle tree. Of course Mike I'm sure can do the same thing. I won't bash on the batteries if they take the abuse, but I'm sure a real world test would prove that those ratings are bogus. If I could run them until they hit a 3.2v/cell cut off in my truggy and have them be under 110* I'd be happy

Calm down everyone let the man talk. He is most likely very aware of the shoes he must fit. I am waiting patiently for these graphs. Everyone else should do as well.

As I said earlier, his credentials should mean something at least, so following through with the promised graphs should be something he is capable of. I believe he will post up a graph of these batteries results. If not haze all you want.

On a personal note, Brandon, I buy the best I can afford, I have always wanted to give your company a chance. But evidence in this case will do you all the better. Especially with this forum.

On a side note, if the length of time taken is to prefab up a photoshopped graph of your packs with silly unrealistic numbers. Don't waste your time here, send it to RCDriver and RC Car Action for your latest add.

On another side note: 1000hp dragsters started with a lipo. Seems like your trying to elude the audience with that one. Give me the manufacturer of the starter and I will tell you how much currant it pulled from the battery. It doesn't take an outstanding amount to turn over a blown v8 than it does my 1.5l inline 4.

On a further side note: Get one of these packs to continuously crank a diesel in a big rig for a while than you have something.

Why am I not suprized. So actually they are 75C cont / 150C burst @ 1 second. But wait, on the website it says:

No mention of continuous or burst ratings, just 'True 150C rating'; that implies 150C continuous without any other info being offered. You're the marketing rep right? Is it standard practice for MA to mislead customers with totally false ratings ( ofcourse it is, been around too long to know or think otherwise... ), or to simply leave out the rather important fact that that 150C rating is for a 1 second burst- god knows what the voltage droops to under that kind of load.

7.7C discharge graph is just :lol: too.

Funny thing about the starting dragster engines coment- I've seen A123 cell packs used to start motorbike dragster engines and those cells are only 2300mah 30/60C, terrible voltage drop underload yet they got the engine turning over just fine- right until the wiring on the bike started to smoke ( ignition was left off so the engine didnt actually start, just kept turning it over for several minutes ). I've also seen a normal 6s lipo start a 4x4 pickup engine by jumping it to the 12v batt which was flat; nothing short of a very impressive discharge graph with video or photographic proof of the readings from the discharge apparatus will change mine or many other people's opinions of MA. :no:

I don't understand the obsession with graphs. Do you drive graphs? Do you race graphs against everyone else to make the A-Main? Graphs are useless. All that matters is the performance at the loads we put on the packs in this hobby. I believe these packs will more than satisfy the needs of my ESC and motor in my 1/8th scale vehicles.

If a graph gets posted showing the pack handling a 150c load for 1 second, that won't mean a single thing to me. Nor will seeing a graph showing a 75c load for an entire discharge. Seeing my truggy sail to a checkered flag victory in a 12 minute main, clearing the triple every time, that means something to me. Oh, wait, that's what my current MaxAmps 6500 pack did for me just Saturday.

These guys are innovative and enterprising. They make good products and they market them well. On top of all that, they are out there in the hobby. You can see them at RCX, they have a phone number on their web site and now they are even here on this forum. If you are not a fan, so be it but live and let live...

Wow, tough crowd in here. I'm just as skeptical about 70C continuous as the next guy, but I think we all need to calm down a tad. Let him post more of the graphs/data and then we can let the comments fly (but still keep them based on observations derived from facts, and no bashing).

About the graph: to me, it looks like an acceptable graph for a ~20C rated pack judging by the voltage drop vs current and usable capacity (no data on temperature but I'm sure that's coming in due time). Of course, internal resistance is not exactly linear with load so that's just an objective opinion. I sincerely hope that the claims are valid simply for the sake of liability, but then again, what setup can pull anything resembling 300A+ continuously?

@Electric Dave: You are right, graphs aren't representative of a running vehicle, but they do show the relative performance between various cells if testing is executed in a similar fashion.

Holy Cow Guys!!
 

Wow,

I'm suprised this thread has had so much attention lately. I know you guys are waiting for "charts and graphs" but I do agree somewhat that the battery needs to speak for itself in real time real world testing also. I realize that the true 150c rating might be a little over the top but think about this in a real world application.

1. Have you guys stopped to think about what a 1 sec burst of 150c will do to your truck/car? It's gonna tear the shiatz out of your parts, your going to wheely out of control no matter how fast or slow your going. I think most people in hear that know brushless understand what I'm trying to say. Even with a flux 5t conversion, (just an example), your not going to put that power to the ground with any positive results.

2. If MA were catering to the "knowledgable" brushless guru's out there they would market this battery as such. Reliable, stable, continous power ratings, cool temps etc... I don't think that is their nitch, they cater to the "new" brushless customer, the occasional weekend basher. Im not saying they don't want us as customers, I only pointing out that most of us here buy other brands out of experience, not an impulse buy. MA is an impulse buy in my honest opinion.

3. Lets see what real world testing shows up. These might be a higher quality cell and if so other more reliable brands will surely be to follow.

Will I ever buy a MA battery again, no. I lost my faith a while back with this company and I'm willing to bet no matter what the "charts and graphs" say, most of you guys bashing in here will never buy a MA battery again either. So lets give MA a shot to prove there batteries. Maybe there are some guys in here that are interested in these batteries and if so, they will be the true test. Let's be patient, I'm looking forward to the results myself only because it wil be a sign of what's to come for the future of lipos.

I'm not knocking anyone but lets try to keep an open mind.