View Single Post
Old 06-14-2013, 02:12 PM
  #2  
guver
Senior Member
My Feedback: (325)
 
Join Date: Mar 2003
Location: LaGrange, OH
Posts: 14,857
Likes: 0
Received 0 Likes on 0 Posts
Default RE: What does the formula tell you?

C means "capacity" and the number is a multiplier. It can a number of currents (amps) such as recommended charge rate , max charge rate , burst discharge rate , max constant discharge rate, ect. Most times when we use the phrase "C rate" we are describing the maximum constant discharge rate by the cell manufacturer. I think that's what you're after and those ratings many times are grossly inflated when using a pack in a plane.

For a 2.2 pack that is listed as a 20C it is then 2.2x20=44 amps.
For a 2.2 pack that is listed as a 5C it is 2.2x5=11 amps.