Hi,
I am using an 8s2p LiFePO4 battery and I want to select the best chemical ID for it. I am thinking in using the Gauging Parameter Calculator (GPC) but I have some doubts with it.
I am going to use the following procedure (recommended by Bryan Kahler in this forum):
- Charge battery with CC/CV.
- Let it relax for 48 hours (due to longer relaxing times of LFP batteries).
- Discharge the battery at C/10.
- Let it relax for another 48h (due to longer relaxing times of LFP batteries).
However I have some doubts about this procedure with this battery:
1. The manufacturer of the battery pack has informed me that due to the BMS, the charging voltage is 27.5V and the final charging current is 0.2C (120mA).
2. Such a low charging voltage sounded me weird but I tested the batteris and I obtained almost 100% of the previously introduce charge.
3. My doubt is about the performance of the GPC with a LFP battery with charging voltage of 27.5V. Do you think it can create any type of problems to GPC to match the right chemical ID?
I attach the cell datasheet in case it were useful.
Thank you very much in advance,
Best regards,
