MaxAmps Race Edition Lipos - Page 17 - RC-Monster Forums

PBO · 11.07.2010, 05:06 PM

Quote:

Originally Posted by molak

i cant see the image!

I can't either now...

It was a photo of the 'new' TP 5300 2S Pro Race 65C/130C hardcase

hemiblas · 11.07.2010, 11:29 PM

[QUOTE=lincpimp;386856]C rating matters... Higher c rating should indicated lower internal resistance. If that low resistance is there and remains the pack will have a long life and produce good power. The internal resisatnace tends to go up as a battery ages (goes thru cycles) and the higher the resistance the lewss power the batt will produce. So going with the highest c rated pack (as long as it is true) will have the lowest internal resistance and hopefully last that way. Plus if you paln to run a certain output (watts) a higher c rated battery will have more headroom than a lower on will, and should perform better and not be pushed as hard, and last longer.

So C rating matters. I would rather run a 1000c battery than a 10c if all other factors (weight, size, etc) were the same.[/QUOTE

In an ideal world where there is a standard for C rating it would matter, but right now anyone can claim anything. C rating between manufacturers is almost meaningless. You cant compare a 40C ebay brand lipo with a 10C truerc lipo. The 10C truerc battery will blow it away. I think we are both on the same page when you say, "as long as it is true". I think manufacturers have a different idea of what "continuous" means, even though it seems pretty clear to me what continuous means.

sikeston34m · 11.07.2010, 11:42 PM

[QUOTE=hemiblas;386910]

Quote:

Originally Posted by lincpimp

C rating matters... Higher c rating should indicated lower internal resistance. If that low resistance is there and remains the pack will have a long life and produce good power. The internal resisatnace tends to go up as a battery ages (goes thru cycles) and the higher the resistance the lewss power the batt will produce. So going with the highest c rated pack (as long as it is true) will have the lowest internal resistance and hopefully last that way. Plus if you paln to run a certain output (watts) a higher c rated battery will have more headroom than a lower on will, and should perform better and not be pushed as hard, and last longer.

So C rating matters. I would rather run a 1000c battery than a 10c if all other factors (weight, size, etc) were the same.[/QUOTE

In an ideal world where there is a standard for C rating it would matter, but right now anyone can claim anything. C rating between manufacturers is almost meaningless. You cant compare a 40C ebay brand lipo with a 10C truerc lipo. The 10C truerc battery will blow it away. I think we are both on the same page when you say, "as long as it is true". I think manufacturers have a different idea of what "continuous" means, even though it seems pretty clear to me what continuous means.

Just remember, the people printing the labels in this case, are NOT the manufacturer.

I have yet to see a manufacturer dare to tippy toe beyond the 40C-45C mark.

A Manufacturer won't last long making claims they don't stand behind.

PBO · 11.08.2010, 02:57 AM

fastbaja5b · 11.09.2010, 03:15 AM

The fact is a LOT of people who buy Lipos barely know how to charge them, let alone what a C rating is, but bigger must be better right? By the time any of these manufacturers have been held accountable and/or proven that their "claimed" C rating is nothing more than sales puff bs, they've already made their money.

I see people racing VTA with 5600mah 50C Lipos, yet these cars never pull more than 30-35 amps from a standing start. A 1000km fuel tank doesn't mean jack if you're only driving to the corner store.

lincpimp · 11.09.2010, 10:51 AM

Quote:

Originally Posted by hemiblas

In an ideal world where there is a standard for C rating it would matter, but right now anyone can claim anything. C rating between manufacturers is almost meaningless. You cant compare a 40C ebay brand lipo with a 10C truerc lipo. The 10C truerc battery will blow it away. I think we are both on the same page when you say, "as long as it is true". I think manufacturers have a different idea of what "continuous" means, even though it seems pretty clear to me what continuous means.

C rating still matters. The fact that mfgs use inflated specs is another issue.

Quote:

Originally Posted by sikeston34m

Just remember, the people printing the labels in this case, are NOT the manufacturer.

I have yet to see a manufacturer dare to tippy toe beyond the 40C-45C mark.

A Manufacturer won't last long making claims they don't stand behind.

Marketing sells stuff, who would have thunk it...!!!

And a 40c lipo is pretty much all we need at the moment. The ridiculous claims are pretty funny, I guess just because I know something about lipo tech.

crazyjr · 12:51 PM

I am going to ask the obviously stupid question.

Why are you guys bugging over something that has proven to be a moot point? You can't sway Newbs from buying bad batteries, at least no one listens at first. And, Now that hobbyking has a USA warehouse (In maxamps back yard no less) there is going to be less business for the established battery producers all around anyways.

Mr Wilcox, This is nothing towards you, just wondering why these guy always bug about a battery most of us might not buy. Good luck selling these batteries to this group of rc'ers

crazyjr · 11.10.2010, 12:54 PM

Quote:

Originally Posted by fastbaja5b

The fact is a LOT of people who buy Lipos barely know how to charge them, let alone what a C rating is, but bigger must be better right? By the time any of these manufacturers have been held accountable and/or proven that their "claimed" C rating is nothing more than sales puff bs, they've already made their money.

I see people racing VTA with 5600mah 50C Lipos, yet these cars never pull more than 30-35 amps from a standing start. A 1000km fuel tank doesn't mean jack if you're only driving to the corner store.

In a way it does make sense, if you got a 5600 lipo only pulling 30-45 amps, you do not need to charge it but one in the day, you can worry about more pressing needs like setup or tires.

Unsullied_Spy · 11.10.2010, 08:44 PM

Quote:

Originally Posted by crazyjr

In a way it does make sense, if you got a 5600 lipo only pulling 30-45 amps, you do not need to charge it but one in the day, you can worry about more pressing needs like setup or tires.

True, but smaller batteries will weigh less and still last through the race. Weight reduction in racing is a good thing.

fastbaja5b · 11.10.2010, 09:40 PM

True but in a TC if the battery is too light, you're balance left to right is out.

I've found with my Electrics, the PQ 5050mah packs or Protec 4000mah Lifepo4 packs are the best fit (within the Roar legal battery range)

Thomasis · **Been waiting very patiently -** 11.17.2010, 10:02 PM

Well,

I left this tread alone for quite a while giving Brandon what I think, (and probably most of you guys think too) AMPLE time to post some more detailed info and graphs for us to see on the performance of these lipos. My decision has been made. Brandon, callin you out bud, your full of BS, nothing has changed at Maxamps, but that's just my two cents worth. I'm done with this tread.

BrianG · 11.17.2010, 10:23 PM

Actually, IIRC, Arc1k posted a couple graphs of a setup using MA packs and they didn't seem that bad. I can't remember exactly what the current/voltage was though, maybe he'll shed some light on this (if it even was him)...

sikeston34m · 11.17.2010, 11:10 PM

The BS promises of actual performance graphs began coming from Brandon's "piehole" on the 15th of last month!

We have to date............a 7.5C graph that wouldn't outperform a decent Nimh pack.

It's empty promises and more lies guys............

I give up too! Just what I thought..........

False Advertising..........False Marketing..........More Lies.......

Don't hold your breath waiting on my money Maxamps! You're way too "busy" with your Maxamps Party to be someone I want to deal with. Especially when you make promises you DON'T Keep!

Note: Brandon stops by here alot. He's keeping an eye on this thread but not posting. If you want to check this........check his last visit date on his profile. If he has time to stop in, he has time to post........and keep promises.

molak · 11.18.2010, 12:31 AM

Poor maxamps guys, they had a little errata on their label and all the forum gets against them

Where it says "True 150C " it should say "True 15.0C "

JERRY2KONE · **Calling them out -** 11.18.2010, 06:44 PM

What I would like to see is for someone in teh R/C hobby call them out in a big way. How about if they contact one of the major networks and request a spot for getting out consumer news on comparisons of Lipo technology in general. Using R/C batteries as their platform and put it all on the table for all to see.