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Old 04-20-2007, 09:21 AM   #1
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Default Lipo C rating question

I currently have a 15C 6000mah 2S2P lipo battery. I've been thinking about getting another and perhaps at times running them together (the batteries that is) either in series or parallel. The new batteries are now 20C 6000mah. Will I have any problems mixing these two different C ratings?
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Old 04-20-2007, 09:54 AM   #2
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No you wont. If you've been using the 15C without problem thus far the 20C will be fine. Basically the C rating determines how many amps you can pull from the battery. 20C allows you to pull more amps (120amps)than 15C (90 amps) so if you're staying in the safe range for 15C (<90Amps) you'll be in the safe range for 20C. However, if you're running over the 15C rating you will run into trouble.

When you're mixing and matching parts such as you want to do just be sure to keep the amps lower than the lowest rating in your setup and you'll be fine.
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Old 04-20-2007, 11:20 AM   #3
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Quote:
Originally Posted by Bohh
No you wont. If you've been using the 15C without problem thus far the 20C will be fine. Basically the C rating determines how many amps you can pull from the battery. 20C allows you to pull more amps (120amps)than 15C (90 amps) so if you're staying in the safe range for 15C (<90Amps) you'll be in the safe range for 20C. However, if you're running over the 15C rating you will run into trouble.

When you're mixing and matching parts such as you want to do just be sure to keep the amps lower than the lowest rating in your setup and you'll be fine.
I think he meant running them in series, I wouldn't. The differing c ratings mean they are different, even if from same manufacturer. And using different cells in series is almost always a no-no

sorry didn't read post through, My bad
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Old 04-20-2007, 11:25 AM   #4
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I was thinking about either in parallel or in series depending on the application. I just thought I might get a brushless setup to run mod where I could hook them in series to get the voltage... other times I might want massive run time (like an enduro) then I could hook them up in parallel.
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Old 04-20-2007, 06:16 PM   #5
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I still say its not a good idea, even if they are from the same manufacterer they work different and the weaker (lower c) will suffer
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