314Ah LiFePO4 Cell
The 314Ah cell is the natural upgrade path when your enclosure cannot grow but your customer wants more kWh — verified on capacity, thermal behaviour and cycle life, with the same documentation package as our 280Ah line.
Overview
A 314Ah prismatic stores roughly 1,005Wh per cell at 3.2V nominal, about 12% more than a 280Ah in nearly the same footprint class. That extra energy density lets you hit a higher system kWh without re-tooling the enclosure, which is why it has become popular for high-density home packs and long-duration C&I storage. CMX Battery validates every 314Ah batch on capacity, thermal behaviour and cycle life and ships the same per-cell report as our 280Ah line, so your certification work does not start over.
Key specifications
| Specification | Value | Why it matters |
|---|---|---|
| Nominal capacity | 314Ah nominal (≈1,005Wh per cell) | About 12% more energy than 280Ah in the same footprint class. |
| Nominal voltage | 3.2V | Sixteen in series = 51.2V; pairs cleanly with 280Ah designs. |
| Cycle life | 8,000+ cycles at 80% DoD (typical) | Longer-rated chemistry; confirm the test condition we quote for your project. |
| Dimensions | Close to 280Ah class; confirm height tolerance | Usually a drop-in for 280Ah enclosures — verify busbar reach. |
| Internal resistance | <0.25 mΩ, matched per batch | Matched IR keeps parallel strings balanced under load. |
Typical applications
- High-density home storage packs: More kWh without a larger enclosure.
- Long-duration C&I storage: Fewer cells for the same energy, lower balance complexity.
- Containerised BESS modules: Reduced cell count per MWh.
- Replacement of 280Ah designs without re-tooling: Same footprint class, higher energy.
How to specify & buying guide
- Confirm the enclosure height tolerance and busbar reach — 314Ah is usually close to 280Ah but not identical.
- Match IR within 0.2 mΩ across the parallel group, same as for 280Ah, to avoid imbalance.
- Require the same per-cell report (capacity, IR, voltage, thickness) so QC is consistent with your 280Ah line.
- For container projects, allocate 314Ah production on a quarterly schedule — tell us your volume early.
Engineering & manufacturing at CMX Battery
CMX Battery grades every LiFePO4 prismatic and cylindrical cell on capacity, internal resistance and self-discharge before it enters a pack. We ship matched batches with per-cell test data keyed to serial numbers, so your production line is not sorting cells on arrival. Bulk cells, welded modules and complete packs are all built under the same quality system.
Certifications & compliance
- UN38.3 — Mandatory lithium battery transport test (altitude, thermal, vibration, shock, external short). Required for any cross-border shipment.
- IEC62619 — International safety standard for industrial Li-ion cells and batteries; expected by EU and most APAC buyers.
- MSDS — Material safety data sheet for handling and shipping.
- RoHS — Restriction of hazardous substances in the battery and BMS.
- CE — EU declaration of conformity for the applicable directives.
Frequently asked questions
Can 314Ah replace 280Ah in my existing design?
In most enclosures yes, because the footprint is close. Confirm height tolerance and busbar reach, and we will send the step drawing.
Is the 314Ah cell available for container projects?
Yes, we allocate 314Ah production for container and C&I projects on a quarterly schedule.
Does it ship with the same test data as 280Ah?
Yes — per-cell capacity, IR, voltage and thickness, keyed to serial numbers.
How does cycle life compare to 280Ah?
314Ah is typically rated for more cycles; we quote the exact condition (DoD, rate, temperature) for your project.
Related products & resources
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Request a quote
Send us your voltage, capacity, dimensions, certification target and annual volume. Our engineering team returns a proposal within three working days. Start your RFQ or review our custom pack capabilities.