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Old Oct 15, 2010, 09:46 AM
brandonwilcox's Avatar
CT
Joined Sep 2008
71 Posts
New Product
MaxAmps.com Race Edition 150C Hard Case LiPo Battery Packs


When second place isn’t an option turn to MaxAmps.com for the most powerful LiPo battery pack on the market. Being a true 150C pack, the Race Edition cells hold the highest voltage under load among any cells that we’ve tested. The pack will be ROAR approved and features a hard case for durability and 6500mah of capacity for super long run times. This pack is a must-have if you’re a serious racer or if you’re just looking for the best pack money can buy.

Specs:
• 3-year 300-cycle guarantee
• 45+ mph in most brushless setups (7.4 volts)
• 39 minutes average run time (6500mah capacity)
• True 150C rating
• 5C fast charge capable
• 100% waterproof
• Hard outer case
• Built today with factory fresh cells
• Built with genuine 12awg Deans Ultra wire
• We add the connectors and balancing taps for you
• 139mm x 47mm x 25mm, 356g

About MaxAmps.com
MaxAmps.com is the industry leader for high-quality LiPo and NiMh batteries for air, water and surface RC products. Their packs are made to order same day and are assembled in the USA. All battery packs come 100% water-sealed for all-weather protection and include a 3-year 300-cycle warranty at no additional charge. For more information on MaxAmps.com, please visit http://www.maxamps.com or call 888-654-4450.
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Old Oct 15, 2010, 10:32 AM
Southern Pride
everydayflyer's Avatar
Haralson County GA. USA
Joined Oct 2004
34,364 Posts
Quote:
True 150C rating
Eqauls a 100% state of discharge in 24 seconds and also implies 975 amps. flowing thru
Quote:
genuine 12awg Deans Ultra wire
Have you posted a graph of a 150C (975amps) discharge anywhere?

Charles
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Old Oct 15, 2010, 10:40 AM
Registered User
Canada, ON, Kincardine
Joined Feb 2009
517 Posts
Good luck testing that 150C rating. The 12 awg leads will have a higher resistance than would be required to achieve that kind of load.
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Old Oct 15, 2010, 11:26 AM
Pro Jet Pilot
Cody f86saber's Avatar
Canada, NB
Joined Apr 2006
433 Posts
• 45+ mph in most brushless setups (7.4 volts)
• 39 minutes average run time (6500mah capacity)
What power system setup gave these results? Results like these should have context so we can understand what is being demonstrated. Will there be smaller capacity high discharge versions available? Some high discharge packs in the 900mAh to 2200mAh range would be great.
Assuming it drops to about 7.4V from it's 8.3-8.4V full charged state while under a 975A load, the load resistance including wires would have to be under 0.00759 Ohms. I don't think 12g wires are normally rated for >7000W.
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Last edited by Cody f86saber; Oct 15, 2010 at 12:42 PM.
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Old Oct 15, 2010, 11:50 AM
どうもありがとうミスターロボット
Wrend's Avatar
United States, IL
Joined Jul 2009
3,063 Posts
Let's just call it 1.21 gigawatts while we're at it.



Quote:
Originally Posted by everydayflyer View Post
Have you posted a graph of a 150C (975amps) discharge anywhere?
I'd sure like to see a 24 second 975 amp discharge voltage graph...
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Last edited by Wrend; Oct 15, 2010 at 12:44 PM.
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Old Oct 15, 2010, 01:17 PM
brandonwilcox's Avatar
CT
Joined Sep 2008
71 Posts
We will have some graphs and videos shortly to demonstrate the raw power of these packs. I think you will be quite impressed. Our testing was very thorough.

Brandon
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Old Oct 15, 2010, 05:48 PM
Distributed Manufacturing
Quixksilver's Avatar
United States, NV, Reno
Joined Jun 2009
359 Posts
We don't trust you, we trust 3rd party testers like Charles.

-Q
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Old Oct 15, 2010, 05:52 PM
HAL... Open the damn doors!
jfetter's Avatar
Miramar, Florida
Joined Jul 2007
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Quote:
Originally Posted by brandonwilcox View Post
We will have some graphs and videos shortly to demonstrate the raw power of these packs. I think you will be quite impressed. Our testing was very thorough.

Brandon
Are you saying you tested a 150C (975A) discharge?

Jack
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Old Oct 15, 2010, 05:53 PM
HAL... Open the damn doors!
jfetter's Avatar
Miramar, Florida
Joined Jul 2007
7,936 Posts
Quote:
Originally Posted by Quixksilver View Post
We don't trust you, we trust 3rd party testers like Charles.

-Q
Let's not be so harsh and just ask if they've used third party testers and would they consider it, I doubt the guy is a crook...

Jack
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Old Oct 15, 2010, 05:58 PM
Southern Pride
everydayflyer's Avatar
Haralson County GA. USA
Joined Oct 2004
34,364 Posts
Last and in fact only cells I have tested from MaxAmps were their LiFePO4 2250s and I admit that they were very confusing to me. I could never figure out why they behaved as they did during charging, oh well.

http://www.rcgroups.com/forums/showthread.php?t=1313354

Charles
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Old Oct 15, 2010, 07:46 PM
Registered User
Orange Park,FL.
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Old Oct 15, 2010, 07:53 PM
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Who needs 150C anyways????????
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Old Oct 15, 2010, 07:57 PM
Southern Pride
everydayflyer's Avatar
Haralson County GA. USA
Joined Oct 2004
34,364 Posts
Ever see a serious RC Drag Race?

Scale 1/4 mile wheel spinning ,smoking must use a Gyro to keep it straight excitement.
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Old Oct 16, 2010, 07:26 AM
JustFlying
rebell's Avatar
Joined Dec 2005
2,387 Posts
I don't care about the 975 amps it might supply, but would like to see how the volts is holding up at say 100A or 150A over the full discharge to 80% of the cell capacity. That is what the value of high C ratings is to me. Five of the 7.4V pack would make a nice 10s pack for planes. If one cell is going bad, just replace 1 pack.
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Old Oct 16, 2010, 09:37 AM
Registered User
Canada, ON, Kincardine
Joined Feb 2009
517 Posts
Quote:
Originally Posted by rebell View Post
I don't care about the 975 amps it might supply, but would like to see how the volts is holding up at say 100A or 150A over the full discharge to 80% of the cell capacity.
100A is only 15C for a pack with this many mAh 150A is not even 25C
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