JANG at URC is testing a Maxamps Pack
 

http://www.ultimaterc.com/forums/sho...d.php?t=124746

I don't expect this to take any traffic away from mike's site. I just figured you guys would want to know that someone out there is doing a review/test of Maxamps, I know how much everyone around here loves the place :whistle:

If you need to sign up for an account to see the thread let me know and I'll post his discharge graph...

You've gotta log in- I'll post it up for ya brainanator

Credit goes to theJANG at URC

http://i345.photobucket.com/albums/p...-discharge.png

Well that's not much of a graph since it doesn't show amp draw. Not helping MA though since their packs are 1500mah higher capacity and they all die off within about 20 sec of each other.

It's a 30A draw...

Thanks metallover for posting the graph :) And yeah, only a 30A constant drain. Battery doesn't even take 5Ah...

Good to see some graphs and thanks to Jang for the tests and ML for posting it.

The results don't really surprise anyone here do they, curious where that extra 1500mah went to tho ?

wow, that is really really really bad!

the flames on the packs take up 1500mah

its likely that the cells in the pack the sold him are not the 6500mah cell, i have receved so that were not what they claimed they were in the past..............that was before i learned my lesson

the joke of the day is that the cheap gen ace packs out performed the ma pack

http://www.rc-monster.com/forum/show...ht=150c&page=9

This is the graph that Brandon "the salesman" posted.

Compare the two.

They are not the same cell IMO.

The cells inside the Pack that Maxamps tested are NOT the same cells inside the packs that Maxamps are selling.

Either way, they are Pitiful for the Price.

I think you linked to the wrong page

It's the correct page.

scroll down to post #130

Surprised, I am not..

thats what we come to expect from ma

I guess on a semi-related note: a battery I won from them last september is speced to 5250mAh, and it only takes about 4800mAh.

MA needs to buy HobbyPartz cells and reshrink them with Flames.

I have 4-40C 5000mah 2s Sky hardcases that all take 5300+ mah from 3.1 LVC

I just got done scan-reading the entire thread up to page 16. Those guys sure are skeptical of the way he did the test and are all saying he should have done it differently. And whoever mycrors4 is seems to be a MA fanboy and does not know what he is talking about. He says its no big deal if a pack puffs up and that he has never heard of a MA pack failure. He must be in his own little world or something.

To some extent I believe the skepticisim is justified. He said it was a constant 30 amp discharge then later went on to say he used a string of light bulbs as the discharge load. That will not result in a constant load as the voltage decreases.

Not to say the results would be different with a true constant 30 amp load, but when your technique is off, it can call into question other aspects of the test.

One would figure with all the stuff he does, he would have had a discharger capable of constant current discharge (like a Turbo 35 or a Tekin DIS-350).

Provided he used the same setupfor all the tests I don't really care.

I think the chart speaks for itself.

we all know maxamps packs are the absolute worst batteries made so why are yall surprised that the POS couldnt even hold its own in a 30A dicharge? If jang tested it with something more accurate the results will only get worse for MA.

+1 .... this not surprised me.... :neutral:

amen brother!

MA Brandon thought the folks at the aircraft section of the link bellow was stupid or something, because he had the guts to try and promote more BS, but this was with their so claimed True 100C car pack.

http://www.rcgroups.com/forums/showthread.php?t=1434306

I really hope someone takes MA to court before they make lipos illegal due to absurd ad dangerous claims. Specially when it seems the Government is trying to stick their hands into everything. I thought false advertising was illegal.

I agree, I'm no electrical genius, but as long as the test stays the same, how are the result's questionable?

What? MaxAmps packs don't live up to the claims made by the company? :sarcastic:
I'm... not at all surprised.

I hooked up a Maxamps "True 150C" pack to my Flux XS over the weekend, did 3 laps of a little circuit we made with that, a Zippy 5000mah 30C and a Turnigy Nanotech 6000 65/130C

On a fresh charge, the Maxamps pack was the only one to go under 6v pack voltage from a standing start (max amp load of 140 amps)

so.. 150C? B...S! Just glad it was my mates pack and not mine!