I’m using a BAK 5000mAh cell in a 14S12P configuration.
I’m wanting to estimate the cycle life and degradation over time.
I’m using the battery pack in an efoil application where peak current is 3C during starting for a few seconds, and nominal current is around 1.5C when cruising. The cell is rate to 3C, but “not for cycle life.”
The pack heats by around 20°C during a session, to a max of 45°C.
The cell testing in data sheet shows that the cell will have 500 cycles at 1C discharge down to 80% of capacity.
A question: Is the cycle life reduction at higher current due to the higher heat, or is it the actual current that causes the damage? I’d just pulling 3C for a few seconds and the pack not heating significantly cause a large reduction in cycle life?
Im assuming it is a combination of both but would love to learn more.
I’m wanting to estimate the cycle life and degradation over time.
I’m using the battery pack in an efoil application where peak current is 3C during starting for a few seconds, and nominal current is around 1.5C when cruising. The cell is rate to 3C, but “not for cycle life.”
The pack heats by around 20°C during a session, to a max of 45°C.
The cell testing in data sheet shows that the cell will have 500 cycles at 1C discharge down to 80% of capacity.
A question: Is the cycle life reduction at higher current due to the higher heat, or is it the actual current that causes the damage? I’d just pulling 3C for a few seconds and the pack not heating significantly cause a large reduction in cycle life?
Im assuming it is a combination of both but would love to learn more.
