280Ah vs 314Ah LiFePO4 Cells for ESS
Compare LF280K 280Ah and IFP72175207 314Ah LiFePO4 cells by nominal energy, dimensions, weight and handbook values for ESS design.
Send an inquiry ↗A 314Ah cell has higher nominal energy per cell than a 280Ah cell, but Ah alone does not decide interchangeability. Dimensions, weight, current rates and handbook cycle-life figures differ; compare them against the system design and matching test conditions.
| Specification | LF280K 280Ah | IFP72175207 314Ah |
|---|---|---|
| Nominal voltage | 3.2V | 3.2V |
| Rated capacity | 280Ah | 314Ah |
| Nominal cell energy | 0.896kWh | 1004.8Wh |
| Dimensions (H×W×T) | 205±0.5 × 174±0.3 × 72±0.5 mm | 204.5±0.5 × 174.8±0.5 × 71.95±0.5 mm |
| Weight | 5420±300g | 5630±200g |
Compare nominal energy first
Both cells have a 3.2V nominal rating. LF280K at 280Ah corresponds to 0.896kWh; IFP72175207 at 314Ah corresponds to 1004.8Wh. This affects pack configuration, but nominal cell energy is not a promise of usable system energy.
Check physical and current fit
The models differ in dimensions and weight. Before changing cell type, recheck module space, connections, thermal arrangement and BMS design; use each handbook's continuous and pulse current ratings.
Read cycle life with its test conditions
The available handbooks state ≥3500 and ≥12000 cycles respectively. If test conditions or end-of-life definitions differ, those figures do not directly predict life in the same system. Request the applicable revisions and conditions for a purchasing comparison.
What to send with an inquiry
- Target system voltage, energy and cell configuration
- Module dimensions, weight, connections and BMS fit
- Current-rate and cycle-life documents under comparable conditions
Common questions
Is a 314Ah cell always the better ESS choice?
No. It has higher nominal energy per cell, but the choice also depends on dimensions, weight, current ratings, pack layout and system goals.
Can the two cell models be mixed directly?
Do not infer that from their shared 3.2V nominal rating. Their capacities and other specifications differ; any mixed configuration needs system-specific design and validation.