Simplify !
1) Buy 20% more capacity than you need, because we are going to stay out of the upper and lower knees.
2) Cycle at 3.375v / cell as your cv. This ensures that you will never achieve a full charge - and - stays away from the knife-edge crossover voltage of 3.4v. A top-balance "sanity check" done at higher voltages should be done at least once. Then drop back to 3.375v/ cell cv cycling.
3) Use a conservative LVD of 3.1v. Maybe 3.2v. Staying well out of the lower knee.
4) If you *must* float, then do so at 3.375v per cell, just like #2. Not 3.4v.
This is not some sort of 80/20 fight. It's about compensating for the lack of lab-perfect conditions of cycle-testing done at factories. Ie, high-heat levels are less degrading if you are not in the upper knee. Likewise, a very conservative dod is used. Because you are using this in the real-world, not the lab.
Manufacturer lab-perfect cycle-testing has the problem of temperature-controlled environments, and when using back-to-back-to-back cycling, "beats the clock" in regards to secondary reaction growth, because they simply do not have the time to cycle them once a day for 10 years before putting them on the market.
1) Buy 20% more capacity than you need, because we are going to stay out of the upper and lower knees.
2) Cycle at 3.375v / cell as your cv. This ensures that you will never achieve a full charge - and - stays away from the knife-edge crossover voltage of 3.4v. A top-balance "sanity check" done at higher voltages should be done at least once. Then drop back to 3.375v/ cell cv cycling.
3) Use a conservative LVD of 3.1v. Maybe 3.2v. Staying well out of the lower knee.
4) If you *must* float, then do so at 3.375v per cell, just like #2. Not 3.4v.
This is not some sort of 80/20 fight. It's about compensating for the lack of lab-perfect conditions of cycle-testing done at factories. Ie, high-heat levels are less degrading if you are not in the upper knee. Likewise, a very conservative dod is used. Because you are using this in the real-world, not the lab.
Manufacturer lab-perfect cycle-testing has the problem of temperature-controlled environments, and when using back-to-back-to-back cycling, "beats the clock" in regards to secondary reaction growth, because they simply do not have the time to cycle them once a day for 10 years before putting them on the market.

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