lipo c rating

Untamedlemon

Might seem like an easy question but what does the c rating on lipo batteries actually mean?
Is there an ideal c rating?

Thanks for any help.

Rooky1

As I am pretty rubbish at explaining things, I robbed this from an RC forum;

"We use the designation 10C etc to mean how much a cell or pack can discharge in amps. C always equals the capacity of a cell or pack. For example. Let use a PQ31003S pack rated for 12C. In this case C=3100mah. the number before the "C" is the multiplier. so 12 x 3100 = 37200mah. to get amps we simply divide by 1000. 37200/1000 = 37.2 amps. 1000mah = 1amp.

So for the above pack (PQ31003S) rated @ 12c we now know the max discharge rating is 37.2 amps.

Another example: a 20C 1800mah 3S pack. What is its max rating? 20 x 1800 = 36000. 36000mah = 36000/1000 = 36amps. So the 1800 3s pack @ 20c has a max rating of 36amps.

so when ever you see a C rating take the number before the letter "C" and multiply the packs capacity by it. That is it. To get amps from your new number simply divide it by 1000mah."

Untamedlemon

Rooky1 wrote: »

As I am pretty rubbish at explaining things, I robbed this from an RC forum;

"We use the designation 10C etc to mean how much a cell or pack can discharge in amps. C always equals the capacity of a cell or pack. For example. Let use a PQ31003S pack rated for 12C. In this case C=3100mah. the number before the "C" is the multiplier. so 12 x 3100 = 37200mah. to get amps we simply divide by 1000. 37200/1000 = 37.2 amps. 1000mah = 1amp.

So for the above pack (PQ31003S) rated @ 12c we now know the max discharge rating is 37.2 amps.

Another example: a 20C 1800mah 3S pack. What is its max rating? 20 x 1800 = 36000. 36000mah = 36000/1000 = 36amps. So the 1800 3s pack @ 20c has a max rating of 36amps.

so when ever you see a C rating take the number before the letter "C" and multiply the packs capacity by it. That is it. To get amps from your new number simply divide it by 1000mah."

Ok I think I understand it a bit better now. The battery I'm looking at says it has a 15-25c discharge so does that mean that I have to keep it in between 15c and 25c or is anything under 25c ok?
http://www.hobbyking.com/hobbyking/store/__17276__Turnigy_nano_tech_1200mah_3S_15_25C_Lipo_AIRSOFT_Pack.html
Thanks.

DeBurca

A very good article here that also explains about the C rating of lipo batteries

Untamedlemon

DeBurca wrote: »

A very good article here that also explains about the C rating of lipo batteries

Cheers, I'll give that a read.