R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 11-20-2010, 08:34 AM   #1
Tech Elite
 
Join Date: Jan 2009
Posts: 2,054
Trader Rating: 10 (100%+)
Default Current Largest LiPo Capacity & Discharge Rate

Is this currently the cream of the crop? Anything else? Do update us from time to time



Last edited by cheapskate.brok; 11-20-2010 at 06:59 PM.
cheapskate.brok is offline   Reply With Quote
Old 11-20-2010, 11:29 AM   #2
Tech Champion
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,524
Trader Rating: 14 (100%+)
Default

until there is a standard set for establishing a C rating between different labelers and manufactures its all pretty pointless. just get what the guy sitting next to you in the pits has if its working for him.
__________________
semi retired..
skypilot is offline   Reply With Quote
Old 11-20-2010, 11:31 AM   #3
Tech Legend
 
Wild Cherry's Avatar
 
Join Date: Aug 2001
Location: TRCR Modified Driver
Posts: 22,595
Default New REEDY 60C

If there anything like the 40C they just introduced ?

There underrated....
Attached Thumbnails
Current Largest LiPo Capacity & Discharge Rate-60c-reedy.jpg  
__________________
Any driver can copy a great set up, a Champion however will steal it .
If Jesus returned as a Rc car he be a Rc10 B5M
George W. Cherry
Wild Cherry is offline   Reply With Quote
Old 11-20-2010, 01:25 PM   #4
Tech Champion
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,524
Trader Rating: 14 (100%+)
Default

they just introduced a 40c and yet now have a 60c, label maker must be working overtime.

like i said.....pointless

last week cherry was pushing the max amps 150c
__________________
semi retired..
skypilot is offline   Reply With Quote
Old 11-20-2010, 06:38 PM   #5
Tech Adept
 
Join Date: Sep 2009
Location: Barbados
Posts: 214
Default

SMC's 60C 6000mah packs seem to be handling high discharge rates well. With a 3.5 after 8 minutes they come off warm but definitely not hot. Had about 30-40% left in it at that point too.

Bear in mind that with increased capacity comes increased weight and size. These 6000mah packs weigh more than my 5200mah packs (can't remember the exact weight difference) and barely fit in my Exotek TC5r.
spongerX is offline   Reply With Quote
Old 11-20-2010, 06:45 PM   #6
Tech Elite
 
Join Date: Jan 2009
Posts: 2,054
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by spongerX View Post
SMC's 60C 6000mah packs seem to be handling high discharge rates well. With a 3.5 after 8 minutes they come off warm but definitely not hot. Had about 30-40% left in it at that point too.

Bear in mind that with increased capacity comes increased weight and size. These 6000mah packs weigh more than my 5200mah packs (can't remember the exact weight difference) and barely fit in my Exotek TC5r.
anything taller than 23.5mm MAY cause installation issues
cheapskate.brok is offline   Reply With Quote
Old 11-20-2010, 06:51 PM   #7
Tech Champion
 
nexxus's Avatar
R/C Tech Elite Subscriber
 
Join Date: Dec 2005
Location: Perth, Australia
Posts: 8,097
Trader Rating: 302 (100%+)
Default

Doesn't maxamps now have a 10000mah 45010250C Lipo?
nexxus is offline   Reply With Quote
Old 11-20-2010, 07:25 PM   #8
Tech Elite
 
Racecrafter's Avatar
 
Join Date: Apr 2007
Location: RC Mecca
Posts: 4,138
Trader Rating: 25 (96%+)
Default

This is the current bad boy for stock (21.5/17.5/13.5) racing:

http://trackstarrc.com/trackstar/ind...product_id=366
__________________
Jimmy Wright

www.trackstarrc.com ~ www.facebook.com/TrackStarRC ~ Home of the 2x's Stock Nationals Champion TS-Gold & TS-Black tire sauce, TS-1+ lubricants, TS-Precision bearings, XRG Xtreme Racing Grease, Scale Auto Engineering, ElevenTech, WRD2, Carbon 12, Stiff Products
Racecrafter is offline   Reply With Quote
Old 11-20-2010, 09:00 PM   #9
Tech Fanatic
 
jjfo80's Avatar
 
Join Date: Sep 2010
Location: queensland australia
Posts: 759
Trader Rating: 1 (100%+)
Default

In saying all about these ratings are great to humans as we all go off numbers... So there is no harm in ppl saying this is better than the other...
But one thing should be looked at with batteries should be the quality of the cells with resistance and how close they are to being balanced in the pack....

That creates more heat than having a lower c rating. Poor cells struggle to supply power when the resistance to high within the cell. No point in having all these big batteries either if you havent got a really good charger to look after them.

No point in spending $100 on a pack and charging it with a $20 charger either... I hate to say it but the charger makes the batteries more than the battery itself sometimes with balancing the pack properly and so on....
__________________
Owner of Precise Fuels and RC and Podified Fuels
jjfo80 is offline   Reply With Quote
Old 11-20-2010, 09:10 PM   #10
Tech Elite
 
EddieO's Avatar
R/C Tech Charter Subscriber
 
Join Date: Oct 2003
Posts: 3,414
Trader Rating: 6 (100%+)
Default

I will call BS on 150c.....no way. Thats like 500 amps over the cycle. The little shunts they solder the cells together would melt.....

Later EddieO
__________________
www.teambrood.com
EddieO is offline   Reply With Quote
Old 11-20-2010, 09:20 PM   #11
Tech Fanatic
 
jjfo80's Avatar
 
Join Date: Sep 2010
Location: queensland australia
Posts: 759
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by EddieO View Post
I will call BS on 150c.....no way. Thats like 500 amps over the cycle. The little shunts they solder the cells together would melt.....

Later EddieO
Thats right.... But in saying that ppl that use 12g wire and bullets for instance can only use a maximum of 120amps anyways.... So if the cells can produce that power we will never see it out of the battery. All the connections from the cells onwards will let us down in supplying the power to us.
__________________
Owner of Precise Fuels and RC and Podified Fuels
jjfo80 is offline   Reply With Quote
Old 11-20-2010, 11:40 PM   #12
Tech Legend
 
Wild Cherry's Avatar
 
Join Date: Aug 2001
Location: TRCR Modified Driver
Posts: 22,595
Default

Quote:
Originally Posted by EddieO View Post
I will call BS on 150c.....no way. Thats like 500 amps over the cycle. The little shunts they solder the cells together would melt.....

Later EddieO
Its nice to know your ride can do a 150C micro burst if you need it ....
__________________
Any driver can copy a great set up, a Champion however will steal it .
If Jesus returned as a Rc car he be a Rc10 B5M
George W. Cherry
Wild Cherry is offline   Reply With Quote
Old 11-21-2010, 12:00 AM   #13
Tech Champion
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,524
Trader Rating: 14 (100%+)
Default

micro burst isn't that what you get between heats out in the truck
__________________
semi retired..
skypilot is offline   Reply With Quote
Old 11-21-2010, 06:39 AM   #14
Tech Master
 
Buckaroo's Avatar
 
Join Date: Oct 2010
Location: Norfolk, VA
Posts: 1,503
Trader Rating: 2 (100%+)
Default

Max Amps significantly over hypes their stuff. What they're claiming would take a major leap in lipo chemistry. Once their super secret chemistry was out on the streets, everyone else who made lipos would have cut one open and copied the process in one way or another and EVERYONE would have 100+ discharge batteries on the market.

150C.....yeah, for a microsecond before the internal solder joints flash into smoke.

Their stuff is no better or worse than anyone elses, but the stickers on 'em sure are fancy!

The Fantom batteries are re-labeled Thunder Powers, and as much as 10-15% cheaper on street price.
__________________
Tom Keith

Tekin & Sweep, thanks for all that you do for you know who!

Associated/T.O.P./Mugen/Fantom/Spektrum/Savox

Last edited by Buckaroo; 11-21-2010 at 07:50 AM.
Buckaroo is offline   Reply With Quote
Old 11-21-2010, 08:54 AM   #15
Tech Legend
 
Wild Cherry's Avatar
 
Join Date: Aug 2001
Location: TRCR Modified Driver
Posts: 22,595
Default

Quote:
Originally Posted by Buckaroo View Post
Max Amps significantly over hypes their stuff. What they're claiming would take a major leap in lipo chemistry. Once their super secret chemistry was out on the streets, everyone else who made lipos would have cut one open and copied the process in one way or another and EVERYONE would have 100+ discharge batteries on the market.

150C.....yeah, for a microsecond before the internal solder joints flash into smoke.

Their stuff is no better or worse than anyone elses, but the stickers on 'em sure are fancy!

The Fantom batteries are re-labeled Thunder Powers, and as much as 10-15% cheaper on street price.



Just my opinion, a couple good things about Max Amps products is they excellent quality & their warranty is the best around ....
Those other brands you mention overflow the Li-Po graveyard at my local track...
__________________
Any driver can copy a great set up, a Champion however will steal it .
If Jesus returned as a Rc car he be a Rc10 B5M
George W. Cherry
Wild Cherry is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 02:06 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net