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Old 08-23-2007, 09:40 PM   #46
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My baby is all growed up!!! See syndr0me...this was a very productive thread after all!!!!
You're a true visionary. :-)
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Old 08-23-2007, 09:58 PM   #47
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LOL.....
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Old 08-24-2007, 12:39 AM   #48
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Got the PM. I'm going to attempt to give accurate, full answers for everything. Your questions are all good ones but getting consistent info from multiple sources can be a challenge.
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Old 08-24-2007, 02:29 PM   #49
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here is another encased Lipo thrown into the mix...

http://www.redrc.net/2007/08/velocit...mah-lipo-pack/
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Old 08-24-2007, 02:45 PM   #50
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I'm 100% sure that Lipo is the future. My question though derives from the fact that here in Europe we are using now 5-cell (hence lower volatge) not to push to the limits motors and ecs.

When using the 7.4V lipos wont be bad for ecs & motors and start to have fried one or both items?

Thank you
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Old 08-24-2007, 07:46 PM   #51
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any feedback on the schumacher lipo?

http://www.redrc.net/2007/05/core-rc-5000mah-lipo-pack/
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Old 08-25-2007, 09:34 AM   #52
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I sent Austin Else an email regarding MaxAmps batteries with my questions, concerns and comments and I got a 1.25 page response back. Suffice it to say, we should be seeing some info about their cells, pack assembly and safety on their Web site in the near future.

When making product comparisons, I think it's important to have as much factual information as possible. Personal experience is highly valued and does count, but as has been mentioned above, it doesn't account for the person's level of expertise, experience with other products or circumstance.

Until Austin mentioned it, I didn't realize that people were creating and posting discharge graphs for batteries (nitro guy -> electric). While it is a lab experiment, from a performance perspective, it does seem to be of some value. What do you guys think about these graphs? Are there different methodologies in use? Which one is better? Is the fact that most of these seem to be constant draw tests versus varying draw tests somewhat misleading?
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Old 08-25-2007, 01:52 PM   #53
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Originally Posted by rmdhawaii View Post
Suffice it to say, we should be seeing some info about their cells, pack assembly and safety on their Web site in the near future.
Check this out: http://www.maxamps.com/about.php
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Old 08-25-2007, 02:06 PM   #54
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We do not use hard plastic cases for several reasons. They trap the heat from the cells and cause the packs to heat up. They also do not allow you to see what is happening in the pack so if a cell begins to “puff”, you would not even know it with a hard plastic case.
Oh, I see MaxAmps has done their homework. Did they miss the part where the cells are taped to each half of the case, so puffing is MORE noticeable since the case will immediately split apart?

It's nice that they're trying to put the good foot forward, but maybe they could do it without making things up to cast their product in a more positive light. Then again, this is the company that encourages their customers to spam R/C message boards for free shirts.
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Old 08-25-2007, 02:52 PM   #55
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Disclaimer: I am not a MaxAmps customer (yet) and did not receive a free T-shirt for the above post.

I just want to help people make informed decisions. If anything Austin posted on that page is incorrect or misleading, be sure to let him know. You can contact him here.
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Old 08-25-2007, 02:55 PM   #56
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Quote:
We use our own MaxAmps cells in our packs.
ummm...yeah. I didn't know there was a US based lipo manufacturer. I'm guessing they mean our own rebranded cells...
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Old 08-25-2007, 03:05 PM   #57
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Anyone who is telling you that their cells are “safer” does not have a good understanding of the technology.
Last one for now that really caught my eye. Total BS. We all know there is a huge disparity in quality of cells used in a pack which leads to a huge disparity in safety. If this claim was the case, I am perfectly safe buying any budget pack I run into on Ebay as long as the C rating was adequate.

This is why disclosing the cell supplier is the most important factor. I'm not saying Maxamps is using the crap level cells. But I am saying there is a crap level of cells that I don't know if they are using.
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Old 08-25-2007, 03:10 PM   #58
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Traxxas can choose to work with any company that they want. They choose MaxAmps.
LOL...'cause you know...Traxxas is ALL ABOUT quality.

On the safety thing:

I didn't read where they had any overload protection or fusing. You know, like the "other" manufacturer. I know that feature alone saved me from having to buy another car.
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Old 08-25-2007, 05:42 PM   #59
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JIHAD! :-D
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Old 08-28-2007, 02:07 PM   #60
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Another 5000...

Comments?

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