MaxAmps Race Edition Lipos

[moneybagsfor-rc]

+1

Wilcox, does this mean that your other packs labeled as "True 60C" or "True 30C" mean that they are rated for 60C for one second and 30C for one second respectively?

If Maxamps is using their C rating consistently as their "1 second burst" rating, that is okay. But the word "true" is such a messy word that it really should be dropped from their marketing strategy.

Electric Dave and Thomasis
The only legitimate alternative to a graph would be to purchase ~30 different battery packs and construct a confidence interval over the results holding all other conditions constant, such as temperature, driving conditions, motor/esc, wiring, setup, vehicle. Saying that "my pack runs great!" is only worth it's weight in words and has a sample size of 1, which doesn't tell us anything really. The only substitute for intrinsic evidence (ie a graph) is empirical evidence - so start buying your batteries and let's get those results!

You do drive graphs. And an Eagle Tree logs them.

Originally Posted by moneybagsfor-rc

+1

Wilcox, does this mean that your other packs labeled as "True 60C" or "True 30C" mean that they are rated for 60C for one second and 30C for one second respectively?

No. The 150C packs are labeled differently from the other packs as they are new cells. I have to go in and update the other pack ratings on the older packs as some of them are continuous ratings and some of them are burst ratings. This should be completed over the next couple days. All the information will be posted on the LiPo care page probably by Thursday.

Thanks,

Brandon

[nitrostarter]

Originally Posted by brandonwilcox

This is number 2 on my list of things to do this week. As far as working with other manufacturers and rating the batteries as in industry, we tried that with surge watt ratings. People didn't want to play ball seeing as they want to market a C rating. Since that is the case, we are going to post on the website exactly how we rate our packs and all the information we have regarding our C ratings.

Why not put this information on the Lipo themselves as well? This makes more sense to me if you still want to be able to compare them to the rest of the market. Would this cause too many problems and confusion with the marketing setups?

Originally Posted by brandonwilcox

No. The 150C packs are labeled differently from the other packs as they are new cells. I have to go in and update the other pack ratings on the older packs as some of them are continuous ratings and some of them are burst ratings. This should be completed over the next couple days. All the information will be posted on the LiPo care page probably by Thursday.

Thanks,

Brandon

That right there is my issue with MA's rating system. Even they don't know which cells are being advertised at continuous, burst, and surge ratings. At least the rest of the market is on the same playing field for advertisement and labeling. I know this is the main reason for the lipo's being marketed at their "True" or Surge rating. Hell, if I didn't know better I'd buy the pack that's advertised at 150C versus one at 30C.


Brandon, don't take this post offensively as well. I'm merely making suggestions which would help equivocate the market as well as the consumer.

Originally Posted by nitrostarter

Brandon, don't take this post offensively as well. I'm merely making suggestions which would help equivocate the market as well as the consumer.

Not at all. We welcome any input or ideas. I have a list of all the cell ratings, it's just something that I have to update on the site across the board for all the packs. Like I stated earlier, the marketing material for the Race Edition packs was not ready to go but I wanted to get them out for iHobby and to make it in the magazines. We will be updating all the packs on the site to show the True C ratings for every pack. We will also be taking some time to graph the packs at 60 and 120 amps continious. (I understand this is more important for plane guys but we want to have as much information as possible).

I will also be getting some more strenuous tests for you guys. We realize the burst rating is what matters in cars, and we have provided Mike and a number of other testers some packs to put to the test. The bottom line is maxamps.com wants to make the best pack. If the test results are less then great we are always on the hunt for a better cell. So far our in-house testing and outside testers have reported great results with our packs so as I get that information and results I will post up more and more.

Cheers

Brandon