32140 LiFePO4 Battery 3.2V 15Ah | CMX IFR32140-15Ah Grade-A Cell
CMX IFR32140-15Ah 32140 LiFePO4 battery: 3.2V 15Ah 48Wh, Ø33.2×140mm, ≥2,000 cycles @ 80%, UN38.3 / IEC 62619 / CE / MSDS. 16 cells per 51.2V/15Ah pack. MOQ 100, 15-day lead time. Request a quote.
32140 LiFePO4 Battery — 15Ah 3.2V Cylindrical LFP Cell (CMX IFR32140-15Ah)
The 32140 LiFePO4 battery is the 15Ah class of the cylindrical LFP ladder: Ø33.2 ± 0.2 × 140 ± 0.3 mm, 15 Ah at 3.2 V nominal — 48 Wh per cell, built on CMX’s own IFR32140-15Ah line in Dongguan. CMX Battery manufactures the IFR32140-15Ah against a controlled product specification (CMX-SPEC-RD-002) with per-lot capacity, internal resistance and OCV test data, UN 38.3 / IEC 62619 / CE / MSDS / RoHS documentation, MOQ 100 pcs and 15-day lead time. The “32140” designation also covers the established Lithium Werks and CBAK lines — both are supplied as Grade-A cells for programs that need their specific certification or pulse profile, with specification review to match the right line to your program.
Table of contents: Specifications · Supply Options · What Is a 32140 LiFePO4 Battery? · 32140 vs 33140 · Pack Economics · Charge & Discharge · Cycle Life & Safety · Applications · Certifications · OEM/ODM & Ordering · FAQ
32140 LiFePO4 Battery Specifications
The CMX column is the controlled product specification for the factory-built IFR32140-15Ah (CMX-SPEC-RD-002, rev A/00, effective 2024-06-30); the Lithium Werks and CBAK columns are published manufacturer values for comparison. Final parameters ship against the CMX controlled product specification, issued with your quotation.
| Parameter | CMX IFR32140-15Ah | Lithium Werks AER32140m2A1 | CBAK 32140 |
|---|---|---|---|
| Model | IFR32140-15Ah (CMX-IFR32140-15Ah) | AER32140m2A1 | 32140 |
| Chemistry | Lithium iron phosphate (LiFePO4 / LFP) | Lithium iron phosphate (LiFePO4 / LFP) | Lithium iron phosphate (LiFePO4 / LFP) |
| Rated capacity | 15 Ah @ 0.5C (minimum 15 Ah, 2-h rate to 2.0 V, 25±3 °C) | 15 Ah (C/5) | 15 Ah |
| Nominal voltage | 3.2 V | 3.2 V | 3.2 V |
| Nominal energy | 48 Wh | ≈ 48 Wh | ≈ 48 Wh |
| Dimensions (with PET film) | Ø33.2 ± 0.2 mm × 140 ± 0.3 mm | Ø33.4 ± 0.2 × 139.8 ± 0.5 mm | 32 × 140 mm |
| Weight | ≤ 300 g | 275 ± 5 g | ≈290 g |
| AC internal resistance (1 kHz) | ≤ 3 mΩ | < 3 mΩ | ≤ 3 mΩ |
| Charge cut-off voltage | 3.65 V (upper limit 3.7 V), CC-CV, taper-off 0.02C (300 mA) | 3.65 V (float 3.45 V) | 3.60–3.65 V |
| Discharge cut-off voltage | 2.0 V | 2.0 V | 2.0 V |
| Standard charge current | 0.5C (7.5 A) | ≤C/2 (7.5 A); fast 1C (15 A, 20–80% SOC) | 0.2C |
| Standard discharge current | 1C (15 A) | ≤C/2 recommended | — |
| Max charge current | 1C (25±3 °C, not for cycle life) | 1C (15 A, 20–80% SOC) | — |
| Max continuous discharge | 2C (30 A) (25±3 °C, not for cycle life) | Recommended ≤1C (15 A); max 3C (45 A) | 1C continuous |
| Max instantaneous discharge | 3C (45 A, 10 s) | 5C (75 A, 30 s) pulse | 10C (60 s) pulse |
| Cycle life (100% DOD) | ≥ 2,000 cycles @ 80% retention (0.5C charge / 0.5C discharge) | >3,500 cycles (80% DOD); >2,000 @ 45 °C | long-life claim (verify against datasheet) |
| Cycle life (0.5C charge / 2C discharge) | ≥ 1,200 cycles @ 80% retention | — | — |
| Charge temperature | 0–45 °C | 0–60 °C | 0–45 °C |
| Discharge temperature | −10–60 °C | −10 °C to 60 °C | −20 °C to 60 °C |
| Capacity by discharge rate | 0.5C ≥ 100% · 1C ≥ 97% · 2C ≥ 94% | — | — |
| Capacity by temperature | 25 °C ≥ 100% · 55 °C ≥ 98% · 0 °C ≥ 60% · −10 °C ≥ 40% | — | — |
| 28-day storage (standard charge) | Residual capacity ≥ 90% · recovery capacity ≥ 95% | — | — |
| Energy density | — | >172 Wh/kg; 396 Wh/L (published) | — |
| Certifications | UN 38.3, IEC 62619, CE, MSDS, RoHS | UL 1642, UN 38.3, BIS | CE, RoHS, UN 38.3, MSDS |
Download the CMX controlled product specification: CMX IFR32140-15Ah LiFePO4 Cell Datasheet (PDF, CMX-SPEC-RD-002).
Supply Options: CMX IFR32140-15Ah vs Lithium Werks / CBAK
All three lines share the same envelope and are electrically interchangeable in most designs; the choice is factory-direct controlled specification versus published certification path versus pulse-duty profile.
| Dimension | CMX IFR32140-15Ah | Lithium Werks AER32140m2A1 | CBAK 32140 |
|---|---|---|---|
| Headline strength | Factory-direct supply with per-lot capacity, IR and OCV test data; controlled spec CMX-SPEC-RD-002 | Complete public datasheet; >172 Wh/kg; >3,500 cycles | 10C pulse (60 s) profile |
| Certifications | UN 38.3 + IEC 62619 + CE + MSDS + RoHS | UL 1642 + UN 38.3 + BIS | CE, RoHS, UN 38.3, MSDS |
| Cycle life (controlled spec) | ≥ 2,000 cycles @ 80% (100% DOD, 0.5C/0.5C) | >3,500 cycles (80% DOD) | long-life claim (verify against datasheet) |
| Charge window | 0–45 °C | 0–60 °C | 0–45 °C |
| Discharge rating | 1C standard; 2C continuous; 3C (45 A, 10 s) instantaneous | ≤1C recommended; 3C max; 5C pulse | 1C continuous; 10C pulse |
| Best for | OEM programs wanting factory-direct pricing and lot-level test data | North American / European projects needing UL 1642 | Power-tool and starter duty; cost-sensitive volume |
What Is a 32140 LiFePO4 Battery?
A 32140 LiFePO4 battery is a rechargeable cylindrical cell — 32–33 mm nominal diameter, 140 mm length, 15 Ah at 3.2 V — in the naming convention used by CMX (IFR32140-15Ah), CBAK and Lithium Werks for the 15Ah cylindrical format. Its sibling designation, 33140, covers the same envelope under Gotion and EVE; the split follows the manufacturer, not a physical incompatibility. The full dual-standard analysis is in our 32140 vs 33140 comparison.
The format’s engineering case is cell count: a 51.2 V / 15 Ah pack is 16 cells (16S1P) in the 15Ah class versus 48 cells (16S3P) in the 6Ah class — with proportional reductions in welds, busbars, BMS sampling points and assembly labor.
32140 vs 33140: Same Envelope, Different Manufacturers
| Dimension | 32140 (this page: CMX IFR32140-15Ah / Lithium Werks / CBAK) | 33140 (EVE C33 / Gotion IFR32135) |
|---|---|---|
| Envelope | Ø32–33.4 × 140 mm | Ø33–33.6 × 140 mm |
| Cycle life | ≥ 2,000 @ 80% (CMX, 100% DOD); >3,500 (Lithium Werks) | 2,500–4,000+ |
| Charge window | 0–45 °C (CMX); 0–60 °C (Lithium Werks) | −20 °C to 55 °C (Gotion) |
| Certifications | UN 38.3, IEC 62619, CE, MSDS, RoHS (CMX) | UN 38.3, GB 38031, CE |
| Best for | Factory-direct OEM programs; Western-market certification path | Cold-climate and high-volume ESS |
In most ESS and telecom designs either side works; specify by manufacturer model code (IFR32140-15Ah, AER32140m2A1, C33, IFR32135-15Ah) rather than the size name. See the 33140 product page for the EVE / Gotion side.
Pack Economics: Why the 15Ah Format Cuts Cell Count by Two-Thirds
| Target pack (51.2 V) | 32700 (6 Ah) | 32140 (15 Ah) | 46950 (25 Ah) |
|---|---|---|---|
| 15 Ah (768 Wh) | 16S3P = 48 cells | 16S1P = 16 cells | 16 cells (25 Ah overshoot) |
| 30 Ah (1,536 Wh) | 16S6P = 96 cells | 16S2P = 32 cells | 32 cells (50 Ah overshoot) |
| 100 Ah (5,120 Wh) | ≈272 cells | 16S7P = 112 cells | 64 cells (100 Ah match) |
For a pack builder running volume, that difference lands directly in cost of goods: fewer welds, fewer busbars, fewer BMS channels, less assembly labor. The trade-off is flexibility — a 16S3P 6Ah design can be re-configured by changing parallel count, while a 16S1P 15Ah design is locked to its capacity step. Step-by-step configuration math is in our pack configuration guide.
IFR32140 Charge and Discharge Profile
Charging follows CC-CV on the LFP profile to a 3.65 V ceiling — never 4.2 V. The CMX IFR32140-15Ah charges at 0.5C (7.5 A) standard with 0.02C (300 mA) taper-off, and tolerates up to 1C (15 A) at 25±3 °C where cycle life is not the constraint; charge within 0–45 °C. The Lithium Werks line accepts ≤C/2 (7.5 A) standard with 1C (15 A) fast charge across 20–80% SOC within 0–60 °C; the CBAK line specifies 0.2C standard within 0–45 °C.
Discharging on the CMX IFR32140-15Ah runs 1C (15 A) standard with 2C (30 A) continuous maximum at 25±3 °C and a 3C (45 A, 10 s) instantaneous window. By comparison, Lithium Werks recommends ≤1C (15 A) continuous with a 3C (45 A) maximum and 5C (75 A, 30 s) pulses; CBAK publishes 1C continuous with a 10C (60 s) pulse profile aimed at power tools and starter duty. None of the 15Ah cells is a sustained high-rate power cell in the sense of the 3C-class 6Ah formats — if your pack needs sustained 2C output, verify the rate table on the specific line’s datasheet.
IFR32140 Cycle Life and Safety Performance
Cycle life on the CMX IFR32140-15Ah is specified at ≥ 2,000 cycles at 80% retention on a 100% DOD, 0.5C charge / 0.5C discharge profile, and ≥ 1,200 cycles at 80% retention on the 0.5C charge / 2C discharge profile — the controlled values every shipment is tested against. The Lithium Werks AER32140m2A1 publishes above 3,500 cycles at 80% DOD at room temperature and above 2,000 cycles at 45 °C — the strongest documented rating in the format. The CBAK line carries long-life claims in the distribution channel (up to 6000 cycles advertised); anchor procurement to the manufacturer datasheet and its test conditions.
Safety testing on the CMX cell covers overcharge, over-discharge, external short circuit (< 130 °C), crush (< 130 °C), hot box (130 °C, 30 min) and low pressure (11.6 kPa, 6 h) — all with no fire, no explosion, no leakage. The LFP chemistry’s higher thermal runaway onset temperature removes the propagation concern in multi-cell series configurations.
32140 LiFePO4 Battery Applications
Stationary ESS (C&I and residential). 16S1P blocks deliver 51.2 V / 15 Ah from 16 cells; 16S7P builds 51.2 V / 100 Ah from 112 — the format’s core value proposition.
Factory-direct OEM programs. The CMX IFR32140-15Ah ships with per-lot capacity, IR and OCV test data against the controlled specification — the documentation quality teams ask for first.
North American and European projects. Lithium Werks’ UL 1642 certification shortens the certification path for destinations that require it; BIS coverage supports Indian programs.
AGV, UPS and power-tool duty. The CBAK line’s 10C pulse profile suits starter and tool loads; the 15Ah class halves the BMS channel count of a 6Ah build.
Certifications and Shipping Compliance
Every CMX IFR32140-15Ah cell ships against the documentation compliance teams ask for first: UN38.3 (the UN Manual of Tests and Criteria test summary required for lithium transport by air and sea), IEC 62619 industrial storage safety compliance, CE declaration, MSDS and RoHS. Cells ship with PET film and bar-coded traceability (model, capacity, voltage, energy, production date, factory serial). The Lithium Werks AER32140m2A1 additionally holds UL 1642 and BIS; the CBAK 32140 ships with CE, RoHS, UN 38.3 and MSDS. Lot-level documentation — capacity, internal resistance and open-circuit voltage per cell — accompanies each shipment.
OEM/ODM Customization and Ordering
CMX Battery builds the IFR32140-15Ah on its own Dongguan line and also supplies Lithium Werks AER32140m2A1 and CBAK 32140 cells as a Grade-A cells supplier for OEM programs: welded tabs or connectors to your drawing, shrink-wrap or label branding with your model number, BMS integration for pack orders from 12 V to 51.2 V, and packaging configured to your line. Cells ship at partial SOC with per-lot test data. MOQ 100 pcs, samples available, 15-day lead time; minimum order quantities and lead times are confirmed with your quotation, which comes back within 24 hours. Warranty is one year from date of shipment against manufacturing defects, alongside the manufacturer warranty where applicable.
Frequently Asked Questions
What is a 32140 LiFePO4 battery?
A 32140 LiFePO4 battery is a rechargeable cylindrical LFP cell — Ø33.2 × 140 mm nominal, 15 Ah at 3.2 V (48 Wh) — built by CMX as the IFR32140-15Ah against controlled specification CMX-SPEC-RD-002, with ≥ 2,000 cycles at 80% retention. The same designation is used by Lithium Werks and CBAK for the 15Ah cylindrical format.
What is the difference between 32140 and 33140?
Same 15Ah envelope, different manufacturers: 32140 covers the CMX IFR32140-15Ah, CBAK and Lithium Werks lines; 33140 covers Gotion and EVE. They are drop-in substitutes in most pack designs — verify holder clearance, discharge-rate rating and charge-temperature window before substituting.
Does the 32140 have UL certification?
The CMX IFR32140-15Ah ships with UN 38.3, IEC 62619, CE, MSDS and RoHS. The Lithium Werks AER32140m2A1 is certified to UL 1642 alongside UN 38.3 and BIS — which shortens the certification path for North American and European projects. The CBAK 32140 ships with CE, RoHS, UN 38.3 and MSDS.
What is the cycle life of a 32140 LiFePO4 cell?
The CMX IFR32140-15Ah is specified at ≥ 2,000 cycles at 80% retention (100% DOD, 0.5C charge / 0.5C discharge). Lithium Werks publishes above 3,500 cycles at 80% DOD at room temperature. CBAK advertises long-life variants in the channel; anchor procurement to the manufacturer datasheet and its test conditions.
How many 32140 cells for a 51.2V 15Ah battery?
16 cells (16S1P): a 51.2 V nominal pack needs 16 cells in series at 3.2 V per cell, and the 15Ah format needs no parallel strings. The same pack in 6Ah 32700 cells requires 48 cells (16S3P).
Can I use a 32140 instead of a 33140?
In most pack designs, yes — the two standards share the same envelope and electrical format (3.2 V, 15 Ah, 3.65 V charge cut-off, 2.0 V discharge cut-off). Verify three items before substituting: holder clearance for the measured diameter, discharge-rate rating against your load, and charge-temperature window.
Is the 32140 available for OEM programs?
Yes — welded tabs or connectors, custom labels with your model number, BMS integration and tailored packaging are standard services, with per-lot test data on every shipment. MOQ 100 pcs, 15-day lead time.
Request a Quote
Send your target voltage, capacity, continuous current and destination market — you will receive a datasheet-matched quotation, sample options and lead time within 24 hours.
Or email sales@cmxbattery.com. Download the CMX controlled product specification: CMX IFR32140-15Ah LiFePO4 Cell Datasheet (PDF). Format-level fitment reference: IFR32140 Typical Specifications Overview (PDF).
Professinal Package
Lithium batteries are DG goods. The shipping must according to MSDS and UN38.3 regulations. Coremax lithium batteries have passed all required rules. All batteries packed with foams in a brown carton box. Then fit into wood case or wooden pallet. The packing materials provide strong protections to inside batteries. Make sure customer receive batteries in a best condition.
How to ship lithium battery packs.
- 1. For small lithium batteries cells and small battery packs, we can ship by air or express.
- 2. For heavy shipment and higher wh/ batteries, we will shipping by freight. For large order, we ship by containers.
- 3. Coremax provides standard shipping to most area like USA and Europe. Shipping service include DDU. DDP. Please confirm with our sales team for the latest shipping rate.
Lithium ion batteries are different from normal shipment. It requires special shipping forwarder to take care of them. You are welcome to use your shipping agent. Before that, please confirm with your agent as these are DG shipment. We provide shipping service to most area and different country. As battery weight and detail address will cause a different shipping rate. Please contact us for the exactly shipping cost on your order.
About COREMAX
Through cooperation with famous university on constant research and development in new technologies on BMS and Lithium batteries, we are heading toward leader status in the BESS industry due to its high-end technology. With rich experience and knowledge, we offer competitive and reliable LiFePo4 battery systems to promote the brand image, which in-turn has a profound influence on the whole industry. Innovations in research and development provide the best returns for our customers while at the same time providing the inspiration for our further development. Through great management, talented and forward-thinking engineers, high-quality products and first-class customer service, we aims to provide the best vapor experience. To our delight, we have earned a reputation all around the world. We believe that based on honest business practices and stable development, we can be all you want. Our goal is that everyone has a great experience with us, in accordance with our slogan of all for your health. Operation Philosophy: Quality and customer service are the decisive factors in any enterprise future. With that in mind, we implement the policy: Customer first, Quality first. Our forward thinking strategy has made us a consistent source of innovation across the industry in E-cigarettes and our production flexibility has allowed us to keep pace with the changing demands.
Shipping
With strict operating delivery systems in place, customers in the UK, Western Europe, and the US can be delivery door to door service. There is no more additional works on custom clearance for small quantity order.
Customer Service:
As the LiFePo4 lithium battery storage system industry is expanding rapidly in such a short amount of time, there is a high demand for certain products that take weeks and even months to arrive at the retailer. We are looking for distributors from different country like USA, Australia, Germany, England, Lebanon and South Africa..
Reviews
There are no reviews yet.