electrondog
New Member
- Joined
- Nov 12, 2021
- Messages
- 2
I recently purchased 4x EVE LF280K cells from Docan (Jenny) with production dates in Dec 2021 - Jan 2022, and all cells were swollen upon delivery, a similar amount to jay_jay's cells.
I top balanced all cells to 3.65v and ran capacity tests to 2.5v at 23A, and unfortunately all cells failed the test.
The 3x cells with a Dec 2021 production date returned 270-271Ah.
The 1x cell with a Jan 2022 production date returned 277Ah.
I also ran a capacity test with the cells in a 4S configuration. I top balanced all cells to 3.65v and set the BMS low voltage protection to 2.5v, and the test stopped at 270Ah as one of the Dec 2021 production date cells triggered the low voltage protection. The cells had a voltage difference of 0.46v at the end of the test.
The capacity tester was tested prior to the test.
It seems there are a few of us that received swollen cells from Docan with similar production dates.
For those of us who received swollen cells from Docan, how is everyone getting on?
I top balanced all cells to 3.65v and ran capacity tests to 2.5v at 23A, and unfortunately all cells failed the test.
The 3x cells with a Dec 2021 production date returned 270-271Ah.
The 1x cell with a Jan 2022 production date returned 277Ah.
I also ran a capacity test with the cells in a 4S configuration. I top balanced all cells to 3.65v and set the BMS low voltage protection to 2.5v, and the test stopped at 270Ah as one of the Dec 2021 production date cells triggered the low voltage protection. The cells had a voltage difference of 0.46v at the end of the test.
The capacity tester was tested prior to the test.
It seems there are a few of us that received swollen cells from Docan with similar production dates.
For those of us who received swollen cells from Docan, how is everyone getting on?