C Ratings When Wired In Series or Parallel?

[Tommy R]

Hey y'all,

I'm running a dual LiPo battery setup in my scaler. Depending on which wiring harness I have installed, I run the batteries either in series or in parallel. My question is how are the C ratings affected by these wiring configurations?

Here's an example. When I run in series, I use two batteries that are: 2s 1800 mAh, 30c constant (54A), 40c burst (72A). So ultimately it's like running a single 4s battery with an 1800 mAh capacity. Would my constant discharge double to 108A or would it remain at 54A? Or would it be something different altogether?

One more example. I sometimes run two 3s batteries in parallel for longer run times. 3s 1750 mAh, 20c constant (35A), 30c burst (52.5A). This should be equivalent to running a single 3s with a 3500 mAh capacity. How would the C ratings be affected here?

If it matters, I'm running a Holmes BR-XL ESC which is rated to 80A continuous. Thanks in advance for the help.

Tommy

 

[adam83]

2s in SERIES - capacity and amperage stay at 1800mAh, 30C constant

3s in PARALLEL - capacity (C) doubles but that does not affect the discharge rating of the individual packs, so 3500mAh x 20C = 70A constant.

I believe your BR-XL is safe.

 

[Tommy R]

Thanks, Adam. Much appreciated.

 

[Chris_The_Battery_Man]

Capacity doubles(Mah) C rating is always the same.