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Oct 15, 2010, 09:46 AM
brandonwilcox's Avatar
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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Oct 15, 2010, 10:32 AM
Southern Pride
everydayflyer's Avatar
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
Oct 15, 2010, 10:40 AM
Registered User
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.
Oct 15, 2010, 11:26 AM
Edge of the World
Cody f86saber's Avatar
• 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.
Last edited by Cody f86saber; Oct 15, 2010 at 12:42 PM.
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
Let's just call it 1.21 gigawatts while we're at it.



Quote:
Originally Posted by everydayflyer
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...
Last edited by Wrend; Oct 15, 2010 at 12:44 PM.
Oct 15, 2010, 01:17 PM
brandonwilcox's Avatar
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
Oct 15, 2010, 05:48 PM
Distributed Manufacturing
Quixksilver's Avatar
We don't trust you, we trust 3rd party testers like Charles.

-Q
Oct 15, 2010, 05:52 PM
HAL... Open the damn doors!
jfetter's Avatar
Quote:
Originally Posted by brandonwilcox
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
Oct 15, 2010, 05:53 PM
HAL... Open the damn doors!
jfetter's Avatar
Quote:
Originally Posted by Quixksilver
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
Oct 15, 2010, 05:58 PM
Southern Pride
everydayflyer's Avatar
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.

https://www.rcgroups.com/forums/show....php?t=1313354

Charles
Oct 15, 2010, 07:46 PM
Registered User
Oct 15, 2010, 07:53 PM
Team Hitec, Customer Support
Xpress..'s Avatar
Who needs 150C anyways????????
Latest blog entry: Weekender Warehouse
Oct 15, 2010, 07:57 PM
Southern Pride
everydayflyer's Avatar
Ever see a serious RC Drag Race?

Scale 1/4 mile wheel spinning ,smoking must use a Gyro to keep it straight excitement.
Oct 16, 2010, 07:26 AM
JustFlying
rebell's Avatar
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.
Oct 16, 2010, 09:37 AM
Registered User
Quote:
Originally Posted by rebell
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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