The Farasis P73 is a 73Ah NMC pouch cell for builds where the pack has to stay slim and light without giving up capacity. Nominal voltage is 3.7V and each cell holds roughly 270Wh, so a modest parallel count already covers the daily energy budget of a compact power station, a light EV or a drone pack. The laminate package is thin and light enough that a multi-cell stack can follow the shape of the product instead of forcing the housing to grow around a metal can.
Output stays flat through the working part of the discharge curve, so a pack holds its voltage under load instead of sagging as it empties — the trait that makes this cell feel predictable in real service. Builders pair it with a BMS set to the voltage window in the specification table and charge it with a standard CC/CV routine, so no special charger architecture is needed.
Typical projects are electric two- and three-wheelers, UAV and drone battery packs, portable power stations, UPS and light solar storage modules, power-tool packs and custom prototypes. We supply the cell to pack assemblers, ESS integrators, repair shops and equipment OEMs, and as a lithium battery supplier we work with teams who need the same cell to carry from prototype through to serial production.
| Battery Model | FS-P73 |
| Battery Type | NMC Pouch Cell |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 73Ah |
| Working Voltage | 2.75V – 4.2V |
| Max Charge Current | 2.4C |
| Peak Discharge Current | 4.45C |
| Internal Resistance | ≤1.5 mΩ |
| Charge Temperature | -20 to 55℃ |
| Discharge Temperature | -30 to 60℃ |
| Storage Temperature | -20 to 55℃ |
| Cycle Life | ≥1500 cycles |
| Battery Size | 295 (365) × 14.3 × 104 mm |
| Battery Weight | 0.952 kg |
| Warranty | 2 Years |
Energy density is the first reason this chemistry gets chosen. NMC ternary stores more capacity per kilogram than LFP, which is why a 73Ah cell can weigh under a kilogram and still hold its working voltage across most of the discharge. In a device or a vehicle, that difference turns directly into runtime or range.
A package that follows the enclosure. The cell is built from aluminium laminate film rather than a drawn metal can, so it can occupy the flat volumes — under a seat, along the spine of a UAV frame, behind a power station's front panel — where a rigid can would force the housing to grow. In a stack the saving compounds: less dead volume between cells, shorter busbars, a smaller enclosure to tool.
Space utilisation inside the product. Because the pouch can be shaped around the volume that is actually available, designers gain room for the BMS, the wiring loom and the thermal path without making the outside of the product any larger.
Pressure behaviour. The soft package vents through its seal rather than fragmenting a metal shell. That is one practical reason pouch designs are common in packs that sit close to a rider, a driver or a handheld tool.
Where it makes the most sense. Lightweight, portable and slim equipment and light mobility — the categories where every gram and every millimetre is spent on runtime rather than on structure. Deep-cycle stationary storage that must run for a decade is usually better served by an LFP cell, and the comparison below sets out that trade-off in full.
We buy this model through long-standing relationships with NMC battery manufacturers, Farasis among them, so the cell specified for a prototype is the cell that arrives for the production build.
| Property | NMC Pouch Cell | NMC Prismatic Cell | LiFePO4 Cell |
|---|---|---|---|
| Energy density | Higher, lighter weight | Moderate | Lower, larger volume for the same energy |
| Structure | Soft aluminium film; thin, light, flexible shape | Metal shell, rigid, fixed size | Metal can, rigid, fixed size |
| Cycle life | Medium — ≥1500 cycles for this model | Medium to long | Longer cycle lifespan |
| Safety behaviour | General safety, with good pressure relief | Impact-resistant | Excellent thermal and structural safety |
| Low-temperature performance | Good | Good | Weak in cold environments |
| Main use | Consumer electronics, light EVs, portable devices | EVs, ESS, high-power devices | EVs, energy storage, heavy-duty devices |
| Typical build | Slim, weight-critical packs | Vibration-heavy, high-power packs | Stationary, long-cycle storage |
The feedback that matters most on a cell like this is whether the second order behaves like the first. Buyers who come back for the Farasis battery usually started with a handful of cells on a bench rig, cycled them under their own test profile, and placed the production order once the numbers held. What they mention most often is the flat discharge curve, the way the pouch drops into a slim enclosure with no can to design around, and the weight, which keeps a multi-cell pack manageable during assembly.
Repeat orders are the clearest review we get. As a lithium battery supplier working with pack assemblers, ESS integrators and equipment makers, we see the same pattern across very different builds: a small trial, a design pass, then a production run that stays on the same cell. Every comment we receive goes back to the team that handles the next batch, which is why the details buyers raise — tab condition, packing, paperwork — are the ones we watch most closely.
The FS-P73 is an NMC pouch cell rated at 3.7V nominal voltage and 73Ah nominal capacity, working between 2.75V and 4.2V, with a maximum charge current of 2.4C and a peak discharge current of 4.45C. Internal resistance is no more than 1.5 mΩ, charging is rated from -20 to 55 °C, discharging from -30 to 60 °C and storage from -20 to 55 °C, with a cycle life of at least 1500 cycles. The cell measures 295 (365) x 14.3 x 104 mm, weighs 0.952 kg and carries a 2 year warranty. NMC pouch cells are chosen mainly for their high energy density, lightweight design and flexible form factor, which suit portable products: they deliver more capacity in a smaller, lighter body to extend device runtime, and the ultra-thin, light body with a customizable shape fits the slim, personalized design of modern electronics.
Every order is checked before it leaves us. In-depth partnerships with CATL, CALB, EVE, Farasis and other leading manufacturers give us traceable, original-brand cells, and our team runs a full inspection pass on every shipment, with sampling checks on packaging and labels. Anything that fails is held back, replaced and reported to you before dispatch. You are welcome to send your own inspector or appoint a third-party agency; we arrange access, samples and the documents they need, and the same paperwork travels with the goods.
Voltage comes from the number of cells in series and capacity from the number in parallel. Three in series give an 11.1V nominal string, seven give 25.9V and thirteen give 48.1V; from there, every additional parallel cell adds its capacity to the string. Send us the target voltage, runtime and the space you have available and we will map a layout around this NMC pouch cell, including the busbar and BMS implications.
Yes — it is an original Farasis battery, not a re-wrapped or relabelled equivalent. Cells reach us through our manufacturer relationships and are inspected before dispatch, with sampling checks on packaging and labels. If your QA team needs batch information before releasing goods to the line, ask for it with the order and we will include it in the shipment.
Both names describe the same nickel-manganese-cobalt chemistry. Farasis and most Asian cell makers write NMC, while some datasheets and European documentation use NCM. When you compare this cell against another NCM pouch cell, treat the two labels as identical and compare the electrical figures instead of the letters.
A C-rate is a multiple of the cell's capacity. At 73Ah, 1C is 73A, so the 2.4C charge limit works out to about 175A and the 4.45C peak discharge to roughly 325A. In practice you will size the charger and the load well below those ceilings — they describe what the cell can survive, not what a pack should run at continuously.
No. Soldering puts local heat into the seal area and is the quickest way to ruin a pouch cell battery. Ultrasonic welding or a bolted busbar connection are the two methods that hold up in production; for a prototype, clamp the tab into a proper terminal rather than heating it.
Because capacity depends on the rate and the temperature it is measured at. The figure in the specification table is the nominal rating at the standard rate; a listing that quotes a higher number is usually measuring more slowly or at a favourable temperature. Compare test conditions rather than headline numbers, and ask us for the datasheet values from the NMC battery manufacturers before you fix your BMS thresholds.
Yes. Send the series and parallel layout and we will select cells from one production batch as an NMC pouch cell supplier for that build, so capacity and internal resistance sit close together across the pack. That keeps the balancing load on the BMS low and makes the first capacity test predictable.
