Go Back  RCU Forums > RC Airplanes > Questions and Answers
Reload this Page >

What is the right criteria to choose the #C on an Lipo battery ?

Questions and Answers If you have general RC questions or answers discuss it here.

What is the right criteria to choose the #C on an Lipo battery ?

Reply

Old 05-14-2018, 12:44 PM
  #1  
Airsailor
Thread Starter
 
Join Date: May 2017
Posts: 8
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default What is the right criteria to choose the #C on an Lipo battery ?

I have a 60 Ugly-stick ready to flight with a Turnigy G60 Brushless Outrunner 500 motor.
I already have available from other model a Turnigy Multirotor 5200 mAh 22,2V 6S 10C battery. My concern is about the 10C, should it be higher ? Why ?
Airsailor is offline  
Reply With Quote
Old 05-15-2018, 03:55 AM
  #2  
speedracerntrixie
My Feedback: (29)
 
speedracerntrixie's Avatar
 
Join Date: Jun 2010
Location: Sacramento, CA
Posts: 6,736
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Odds are you will pull more then 50 amps at full throttle which will work the battery too hard. I would go a minimum of 25C.
speedracerntrixie is offline  
Reply With Quote
Old 05-15-2018, 06:43 AM
  #3  
Steve Collins
My Feedback: (8)
 
Join Date: Dec 2001
Location: St.Charles, MO
Posts: 2,658
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I think with a 10C battery you will feel a lack of power. The higher the C rating, the better your plane will perform (more power). The "multirotor" packs are low C rated because all the multirotor has to do is hover and a higher "C" rating isn't required in order to achieve that.
Steve Collins is offline  
Reply With Quote
Old 05-22-2018, 03:29 AM
  #4  
scale only 4 me
My Feedback: (158)
 
scale only 4 me's Avatar
 
Join Date: Jan 2002
Location: Avon Lake, OH
Posts: 9,891
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by Airsailor View Post
I have a 60 Ugly-stick ready to flight with a Turnigy G60 Brushless Outrunner 500 motor.
I already have available from other model a Turnigy Multirotor 5200 mAh 22,2V 6S 10C battery. My concern is about the 10C, should it be higher ? Why ?
I'm no expert,, but the way I understand it,, basically a 10c 5200 mah pack is designed to give the motor a max of 52 amps at a time,, that motor I suspect will want more like 80 amps (even though HK says 65amps) when you give it full throttle,, What will happen is the esc/moror will try to draw those high amps and will cause your battery to get hot and fail prematurely in addition to not giving the motor the full power it needs,, Go with a 30c minimum to have wiggle room and not over heat your packs

many web sites out there to inform on this,,, https://fpvfrenzy.com/lipo-c-rating/

good luck

Last edited by scale only 4 me; 05-22-2018 at 03:45 AM. Reason: typos
scale only 4 me is offline  
Reply With Quote
Old 05-22-2018, 04:25 AM
  #5  
BarracudaHockey
My Feedback: (11)
 
BarracudaHockey's Avatar
 
Join Date: Jul 2003
Location: Jacksonville, FL
Posts: 23,302
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Also its important to understand that C ratings are as much marketing hype as technical spec. Many, especially cheaper packs, are shall we say, on the optimistic side.
BarracudaHockey is offline  
Reply With Quote

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


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service