Product Overview

IFR26650-25D Low-Temperature 2500mAh 26650 LiFePO4 Cell

3.2V 2,500mAh 26650 LiFePO4 cell rated for −40 °C discharge and 80C pulse current, built for motorcycle starting, outdoor UPS and cold-climate equipment.

IFR26650-25D 2500mAh low-temperature 26650 LiFePO4 cellIFR26650-25D
−40 °C discharge 80C pulse ≥2,000 cycles

Product Description

Product Features

FAQ

Product Tags

Low-Temperature Performance

−40 °C Discharge

The cell keeps delivering power after a −40 °C cold soak, removing the need for external heating in outdoor cabinets and winter mobility.

−20 °C Charging

Charging is supported down to −20 °C, so packs can recover between shifts without a heated enclosure.

Stable Cold Capacity

A low-resistance electrode design limits capacity loss and voltage sag in low-temperature operation.

High-Rate Capability

80C Pulse Discharge

200A for 10 seconds supports motorcycle cranking and other short high-current events.

50C Continuous Discharge

125A continuous from a 2,500mAh can — enough for UPS transfer and specialty equipment.

≤6mΩ Internal Resistance

Low resistance keeps heat generation small even at 125A continuous.

Safety & Compliance

LiFePO4 Chemistry

The olivine LiFePO4 cathode provides intrinsic thermal stability and a lower risk profile than high-energy nickel chemistries.

Wide Certification Coverage

Designed to meet UL1642, UL2054, UL1973, IEC62133, UN38.3, RoHS and REACH requirements for global battery packs.

Traceable Production

Every cell carries a production batch record, supporting incoming inspection, field traceability and certification audits.

Technical Specifications

ParameterValueUnit
ModelIFR26650-25D—
ChemistryLiFePO₄ (LFP)—
Nominal Voltage3.2V
Nominal Capacity2,500mAh
Cell Type26650 cylindrical—
Diameter26.3 ± 0.2mm
Height65.2 ± 0.3mm
Discharge Temperature−40 to +60°C
Max Continuous Discharge50C (125,000)mA
Max Pulse Discharge80C (200,000, 10 s)mA
Cycle Life≥2,000 at 100% DODcycles
ComplianceUL1642 / UL2054 / UL1973 / IEC62133 / UN38.3 / RoHS / REACH—

Applications

Motorcycle Starting

Outdoor UPS

Cold-Climate

AGV

Specialty Equipment

Engineering support: send us your load profile, duty cycle and target pack format — our team will confirm the cell selection and prepare a quotation within one business day.

Support & Documents

Customer Cases

Reference projects for Motorcycle starting, outdoor UPS, specialty equipment, AGVs and cold-climate devices. packs are available on request. Our engineers can share comparable deployments for your application.

Datasheet & Compliance

Full specification PDF, UN38.3 test report and material declarations can be requested from our sales team.

Key Takeaways

  • −40 °C to +60 °C discharge for outdoor cabinets, motorcycles and cold-climate equipment.
  • 80C pulse (200A for 10 s) and 50C continuous (125A) from a 2,500mAh can.
  • −20 °C charging without an external heating system.
  • ≥2,000 cycles at 100% DOD, 96Wh/kg and 83 ± 2 g.
  • UL1642 · UL2054 · UL1973 · IEC62133 · UN38.3 · RoHS · REACH compliance, produced under IATF 16949 and ISO 9001 quality systems.

Cell Structure & Build

The IFR26650-25D uses a nickel-plated stainless-steel can with PET shrink film and laser-welded terminals. At 83 ± 2 g and ≤6mΩ it is built to deliver high current in cold conditions without excessive heating.

  • Nickel-plated steel can + PET film — mechanical protection and insulation
  • Laser-welded terminals — low-resistance joints for high-current duty
  • 83 ± 2 g — consistent weight for PACK balancing
  • Batch-level traceability — from raw material to finished cell
IFR26650-25D product view on white background
IFR26650-25D product view on white background

Low-Temperature Performance

Discharge is rated from −40 °C to +60 °C and charging from −20 °C, so packs keep working in winter mobility, outdoor telecom cabinets and unheated storage. Cold-weather capacity depends on current and cut-off voltage — ask PLB for temperature-specific discharge data.

  • −40 °C to +60 °C discharge window
  • −20 °C charging supported
  • Stable voltage at high current
  • Suitable for outdoor cabinets and winter mobility
IFR26650-25D alternate angle
IFR26650-25D alternate angle

High-Rate & Cycle Life

The cell delivers 125A continuous and 200A for 10 seconds, covering motorcycle cranking and UPS transfer. Cycle testing confirms ≥2,000 cycles at 100% depth of discharge in the 2,500mAh, 96Wh/kg format.

  • 50C continuous / 80C 10-second pulse
  • ≤6mΩ internal resistance
  • 96Wh/kg energy density
  • ≥2,000 cycles at 100% DOD
IFR26650-25D close-up detail
IFR26650-25D close-up detail

Technical Specifications

Mechanical
ShapeCylindrical
Case materialNickel-plated stainless steel + PET shrink film
Diameter26.3 ± 0.2 mm (max 26.5 mm)
Height65.2 ± 0.3 mm (max 65.5 mm)
Weight83 ± 2 g
Electrical
ModelIFR26650-25D
ChemistryLiFePO₄ (LFP)
Nominal capacity2.5 Ah (2,500 mAh)
Nominal voltage3.2 V
Internal resistance≤6 mΩ
Standard charge1C (2,500 mA)
Max continuous charge5C (12,500 mA)
Standard discharge1C (2,500 mA)
Max continuous discharge50C (125,000 mA)
10-second pulse200,000 mA
Charge temperature−20 to +60 °C
Discharge temperature−40 to +60 °C
Cycle life≥2,000 @100% DOD
Energy density96 Wh/kg
ComplianceUL1642 / UL2054 / UL1973 / IEC62133 / UN38.3 / RoHS / REACH

Application Scenarios

One low-temperature cell platform for cold, outdoor and high-current equipment.

Motorcycle StartingCranking current in winter conditions, at one-third the weight of lead-acid.
Outdoor UPSTelecom cabinets and outdoor enclosures that see sub-zero nights.
Specialty EquipmentField devices and weapon systems that must start cold.
AGVCold-store and freezer-zone logistics robots.
Cold-Climate DevicesSolar street lights and signage in northern latitudes.
Jump-Start PacksPortable boosters rated for winter use.
Emergency SystemsStandby power in unheated sites.

Storage & Reliability

Store the cell at −20 to +45 °C in a dry environment, away from direct sunlight. Long-term storage above +45 °C accelerates calendar ageing; model-specific capacity-retention and recovery figures are available in the datasheet.

Does the IFR26650-25D really discharge at −40 °C?
Yes — the discharge window is rated from −40 °C to +60 °C. Available capacity in cold conditions depends on discharge current, cut-off voltage and pack insulation; PLB can provide temperature-specific data for your load profile.
Can the cell be charged below 0 °C?
Charging is supported down to −20 °C. Use a BMS with cell temperature sensing and confirm the charge profile with our engineers for your pack design.
What current can it deliver?
125A continuous (50C) and 200A for 10 seconds (80C), with ≤6mΩ internal resistance. Continuous current in a finished pack depends on cooling and PACK design.
Which certifications does the cell support?
The cell is designed to meet UL1642, UL2054, UL1973, IEC62133, UN38.3, RoHS and REACH requirements. Final certification is issued for the completed pack and should be confirmed with our quality team for your project.
Can PLB build a custom PACK around this cell?
Yes. PLB designs and assembles custom LiFePO4 packs with matching BMS, enclosure, terminals and communication interfaces. Send your voltage, capacity, current and mechanical requirements for a proposal.

Compliance references: UL 1642 / 2054 / 1973 · IEC 62133 / 62619 · UN38.3 transport testing.

Need This Cell Built Into a PACK?

Tell us your voltage, capacity, current and enclosure requirements — our engineers reply within one business day with a solution and quotation.

Request a Free Engineering ConsultationDownload Custom PACK Capability Brochure

NDA available upon request · Typical response within 12 hours

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