I am wrong about MaxAmps. - Page 2 - RC-Monster Forums

kulangflow · 04.27.2008, 12:31 AM

Link to my thread about my MaxAmps packs.

Here's the summary:

aqwut · 04.27.2008, 12:53 AM

Yeah, I saw your graph...

Serum · 04.27.2008, 02:43 AM

What cells are pack a,b,c and d?

04.27.2008, 02:48 AM

All of them are 2s 6000mAh MaxAmps packs based on the link he has.

Serum · 04.27.2008, 02:53 AM

Yeah. noticed that later..

The 6000 mAh packs are poor, that's a fact; the 4000's and 5000's are better.

04.27.2008, 08:28 AM

I've puffed 2 maxamps 5000's after very little usage, and being very well cared for. One burst into flames ruining both cells, the other puffed one cell only, and did not vent. That's a nice $220 down the toilet ;).

J.

kulangflow · 04.27.2008, 09:42 AM

Both of my 3s 5k packs puffed a cell within 10 cycles. Now one of them is a 2s 5k that I never use and the other one just sits in an Ammo can 'cause I'm too annoyed to "fix" my new pack.

aqwut · 04.27.2008, 07:58 PM

But one thing is that MaxAmps is pretty good with their warranty... Send it back to them, I'm sure they'll take care of ya..

lutach · 04.27.2008, 11:12 PM

Quote:

Originally Posted by aqwut

But one thing is that MaxAmps is pretty good with their warranty... Send it back to them, I'm sure they'll take care of ya..

If I made a product and sold it for like 2000% profit, I would have some amazing warranty too

. On the serious side though, they are probably making a nice profit to offer good warranty.

lincpimp · 04.27.2008, 11:16 PM

Quote:

Originally Posted by lutach

If I made a product and sold it for like 2000% profit, I would have some amazing warranty too

. On the serious side though, they are probably making a nice profit to offer good warranty.

Their warranty is not that good. Not enough to justify lying about their products...

OOOHHH, I used the "L" word!

lutach · 04.27.2008, 11:41 PM

Quote:

Originally Posted by lincpimp

Their warranty is not that good. Not enough to justify lying about their products...

OOOHHH, I used the "L" word!

This is my story

. I bought 2 4000mAh 3S packs from them to try it out. They shipped out the 2100mAh. I sent them back and they even paid for them. So what you're saying is that if you pay for the warranty, it's not good? If so, I think Max Amps should regroup real fast to avoid some pissed off clients.

lincpimp · 04.28.2008, 12:02 AM

Quote:

Originally Posted by lutach

This is my story

. I bought 2 4000mAh 3S packs from them to try it out. They shipped out the 2100mAh. I sent them back and they even paid for them. So what you're saying is that if you pay for the warranty, it's not good? If so, I think Max Amps should regroup real fast to avoid some pissed off clients.

I mean their 30 day no puff waranty. I would almost say that the 300 cycle warranty is mandatory. But that would up the price up even more, and then you might as well buy a better lipo. I can say that all of my packs that I had issues with had 10 cycles or less, most had 5 or less.

I would rather buy a product that does not fail and lives up to its advertised spec, than buy an over-rated item with a great warranty. I hate sending stuff back. Hell, I have had more luck buying used enerland cell packs off the plane guys on rcgroups that I have had with brand new maxamps packs.

Sammus · 04.27.2008, 08:22 PM

Probably not anymore after the badmouthing lol.

kulangflow · 04.27.2008, 09:25 PM

All my packs are out of warranty and I don't pay for the extra warranty period.

Austin (MaxAmps) heard about my testing and contacted me indirectly and wants to talk to me about it. I'm told he wants to send me a new pack to test as long as I post the results. I'm waiting to hear back from him now. I'll let you know what I find out.

VintageMA · 04.28.2008, 12:17 AM

Quote:

Originally Posted by kulangflow

All my packs are out of warranty and I don't pay for the extra warranty period.

Austin (MaxAmps) heard about my testing and contacted me indirectly and wants to talk to me about it. I'm told he wants to send me a new pack to test as long as I post the results. I'm waiting to hear back from him now. I'll let you know what I find out.

Not for nothing, but I never had a problem with a MaxAmps pack when it was shipped fresh. For the first 20 - 25 cycles that packs were very strong (5k cells) and it's only after a while that they can't handle the draw.

If you do test with a newly shipped pack - cycle it hard about 15 times before comparing it with another pack.

Problem with all of the test and graphs we see is that you can be sure they have been run on a brand new pack at it's strongest.

My concern is longevity. When I have been running the pack for a year I want to know that it's still going to be a good qality pack.

I have been using TP and Apogee packs (the 900, 1320, and 2100 mAh ones) in my 1/18 scale buggies and currently have a few packs that are over 2 years old with no problems and no puffing.