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How to convert 14.8V @ 10A Lipo battery output to 12V@10A ?

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Simon:
do LiPo's discharge to 3.2V? i thought lithium stuff was 4.2 to 3.7V

sleemanj:

--- Quote from: Simon on July 21, 2019, 09:17:11 am ---do LiPo's discharge to 3.2V? i thought lithium stuff was 4.2 to 3.7V

--- End quote ---

3.7 is the nominal voltage, not the minimum voltage.

3.2v would be a fairly modest discharge level, 2.7v is fairly deep.

ogden:

--- Quote from: sleemanj on July 21, 2019, 10:35:46 am ---3.7 is the nominal voltage, not the minimum voltage.
3.2v would be a fairly modest discharge level, 2.7v is fairly deep.

--- End quote ---

I would say too low. "3.7V nominal" LiPo range for (0% - 100%) charge level is 3.0V - 4.2V / cell.

BTW best battery-related info resource I know: https://batteryuniversity.com

Siwastaja:
The motor controller does the conversion for you, you don't need to regulate the input. The motor controller actually is the buck converter you are looking for, just using the motor as the inductor.

Make sure the controller can handle the maximum battery voltage. If not, pick/design one that can.


--- Quote from: ogden on July 21, 2019, 01:33:13 pm ---BTW best battery-related info resource I know: https://batteryuniversity.com

--- End quote ---

Wouldn't trust it. Although it's been through massive cleanup and rewrite process, they are responsible for originally creating many urban myths still hanging around. I don't have time to evaluate it now, but in the past their bullshit rate was almost 100%.

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