The value of a 16-cell VS 15-cell LiFeP04 battery configuration
Among the different LiFeP04 pack configurations, both a 15-cell 48V pack and a 16-cell 51.2V pack are commonly used. A 16-cell LiFeP04 51.2V pack offers superior performance compared to that of a 15-cell 48V pack with the same grade cells as the 16-cell pack.
What is the difference between a 15-cell and 16-cell battery pack?
What is the difference between a 15-cell 48V battery pack and a 16-cell 51.2V battery pack (like the FLS, FLT, and FLX Series) batteries) with the same quality of cells?
The differences between a 15 and 16-cell battery pack are shown in the table below. For comparison, cells with the same grade, nominal voltage (3.2 V), and capacity (100Ah/320Wh) have been used.
As shown, the total capacity of a 16-cell battery is more than a 15-cell battery, as is the nominal voltage which offers a small improvement in the efficiency at which the inverter can convert the DC to AC. While the values in the table are theoretical, it is not the same in practice, as the 15-cell battery packs recommend an operating voltage range that is often larger, thus placing more strain on the individual cells resulting in decreasing lifespans and performance. The performance of the packs also depends on the BMS, the quality of the cells, the capacity of the cells, and the cell pairing.
In conclusion
A 16-cell battery is superior to a 15-cell battery in terms of capacity, as it contains an extra cell. In this regard, the new FLS, FLT and FLX models are vastly superior to the previous FLA and LPBF models.
