CMX Battery · LiFePO4 Cell Supplier
LiFePO4 Prismatic Cells — 50Ah to 314Ah
Grade‑A LiFePO4 prismatic and cylindrical cells for pack builders, ESS integrators and distributors — graded on capacity and internal resistance, shipped with per‑cell test data your production line can trust. As a direct LiFePO4 cell supplier we sort the batch so you don’t.
Cell range overview
Every system we ship starts with the cell, so we treat cell quality as the root of pack reliability. We source new Grade‑A prismatic cells from 50Ah to 314Ah and cylindrical cells in 18650 / 21700 / 26650 / 32700 sizes, then match every batch on capacity, internal resistance and self‑discharge.
Prismatic cells
50 / 100 / 105 / 230 / 280 / 304 / 314Ah. High energy density and easy to stack into 24V / 48V / 51.2V blocks.
Cylindrical cells
18650, 21700, 26650 and 32700 for high‑discharge and standard‑holder applications, including 18650 cells bulk supply.
Sodium‑ion option
Cold‑climate and cost‑sensitive projects can move to sodium‑ion cells without redesigning the enclosure.
Matched modules
12V / 24V / 48V / 51.2V modules and smart BMS, pre‑balanced and documented for drop‑in integration.
Capacity options
Pick the form factor your enclosure was designed around. 280Ah and 314Ah drop into most residential and small C&I builds; 50–105Ah suit portable and specialty packs.
Grade‑A sourcing & grading
We don’t pull cells off a pallet and call them Grade‑A. Every order is graded on three things that decide pack life: verified capacity above nameplate, matched internal resistance and self‑discharge within band. The result ships as one batch with one test report, keyed to serial numbers.
- Capacity verified above nameplate — more usable kWh before first degradation.
- Internal resistance matched per batch to keep parallel strings balanced.
- Per‑cell test data supplied with every shipment, not on request.
- Laser‑welded terminals and busbars, or bare cells for your own welding.
Key specifications
| Specification | Value | Why it matters |
|---|---|---|
| Form factors | Prismatic 50/100/105/280/314Ah; cylindrical 18650/21700/26650/32700 | Prismatic for density; cylindrical for high discharge. |
| Nominal voltage | 3.2V per cell (plateau ~3.2–3.3V) | 8 in series = 24V; 16 = 48V / 51.2V. |
| Cycle life | 3,000–8,000 cycles @ 80% DoD, 25°C | Quoted at a defined condition for fair comparison. |
| Operating window | 2.5–3.65V cutoff; −20°C to 60°C discharge | Charge below 0°C needs a heated variant. |
| Internal resistance | Typically <0.25 mΩ (prismatic), matched per batch | Low, matched IR limits hot spots. |
Applications
Home ESS packs
280Ah / 314Ah prismatic in 48V modules for residential storage.
C&I BESS cabinets
Matched prismatic banks for rack and container builds.
RV, marine, off‑grid
Cylindrical and 12V / 24V prismatic for mobile loads.
Telecom & UPS
Long‑life stationary banks with full documentation.
Why source cells from CMX Battery
One quality system
Grading, assembly, BMS and test data live in‑house — prototype equals production.
Batch traceability
Serial‑keyed reports let your line skip incoming sorting.
Export certified
UN38.3, IEC 62619, UL 1973, UL 9540A, CE per market.
OEM / wholesale
Bulk and sample orders, neutral label, MOQ by discussion.
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