GEB 14250 3.7V 280mAh Cylindrical Lithium-ion Battery Cell (1/2 AA Size, 14×25mm)

Grade-A GEB 14250 3.7V 280mAh Cylindrical Lithium-ion Battery Cell (1/2 AA Size, 14×25mm) (3.7V, 280mAh) cylindrical battery with Ø 14.5 ± 0.2 mm × H 25.0 ± 0.3 mm (1/2 AA Size) dimensions, low IR, and UN38.3 documentation for Electric bicycles, power tools, electric scooters, medical equipment, custom battery pack modules.

B2B Engineering Review & Pricing

Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.

✔ Response target: Target response within 12 business hours during business hours; timing varies by inquiry complexity and working hours.
✔ Typical Lead Time: 7–10 business days for prototypes; 15–20 business days for mass production after final specification approval. Final timing is confirmed after tooling, testing, and order review.
✔ Shipping documentation: Applicable UN38.3 test documentation, MSDS/SDS, CE and Class 9 dangerous-goods requirements are confirmed per selected configuration and shipment.

Product Details

Direct Answer / Engineering Summary

The GEB 14250 3.7V 280mAh Cylindrical Lithium-ion Battery Cell (1/2 AA Size, 14×25mm) is an industrial 1/2 AA format rechargeable lithium cell delivering a 3.7V nominal output and 280mAh rated capacity (1.04Wh). Manufactured with high electrochemical purity and an anti-leakage hermetic seal, this compact cell (Ø 14.2 × 25.0 mm, net weight ~10.5g) provides ultra-low self-discharge (<3% per month) and high operational stability across wide temperature ranges (-20°C to +60°C). It is specifically engineered for smart utility meters, industrial PLC memory backup, wireless security sensors, and GPS asset trackers.

Engineering Overview

Product Overview

The GEB 14250 3.7V 280mAh Cylindrical Lithium-ion Battery Cell (1/2 AA Size, 14×25mm) is a specialized half-length AA form-factor industrial rechargeable cell. Delivering 3.7V nominal potential and 280mAh rated capacity (1.04Wh energy), this cell incorporates a laser-sealed stainless steel casing, glass-to-metal seal terminal feedthrough, and built-in safety pressure relief. With outer physical dimensions of Ø 14.2 ± 0.2 mm × H 25.0 ± 0.3 mm (1/2 AA Size) and a unit weight of Approx. 10.5g ± 0.8g, it is engineered for long-life industrial monitoring, utility AMR metering (gas/water/heat meters), CNC machine tool memory retention, wireless security nodes, and telemetry tracking beacons. Pre-welded axial pins or solder tabs are available for direct PCB integration.

Quick Reference

Product Specifications

Feature / Attribute Technical Specification
Battery Chemistry Lithium Cobalt Oxide / Nickel Manganese Cobalt (LCO/NCM 14250 1/2 AA Cylindrical)
Nominal Voltage & Capacity 3.7V / 280mAh (1.04Wh total energy)
Physical Dimensions & Weight Ø 14.2 ± 0.2 mm × H 25.0 ± 0.3 mm (1/2 AA Size) / Approx. 10.5g ± 0.8g
Continuous Discharge Rating 1.0C–2.0C (0.28A–0.56A continuous discharge)
Peak Pulse Discharge 3.0C (0.84A pulse ≤ 5s)
Target Applications Smart utility AMR meters (gas/water), industrial PLC memory backup, wireless security sensors, GPS asset tracking, emergency beacons
Terminal Form Factor Button Top / Flat Top / Axial Solder Pins / 2-Pin Polarized Wire Leads
Service Life / Endurance ≥ 500 cycles (@ 80% DoD, 25°C, 0.5C/0.5C)
Engineering Data

Technical Specifications

Parameter Value Test Conditions & Engineering Tolerances
Nominal Operating Voltage 3.7V Standard measurement @ 25°C, 0.2C rate
Upper Voltage / Cutoff 4.20V ± 0.02V (CC/CV mode) Regulation tolerance ±0.02V, cutoff @ 0.02C
Discharge Lower Cutoff 3.00V ± 0.03V Safety lower voltage threshold
Internal AC Resistance (1kHz) ≤ 60 mΩ 1kHz AC test @ 25°C fully charged state
Cell Consistency Screening ΔV ≤ 3mV | ΔR ≤ 1.5mΩ Pre-assembly automated barcode classification SOP
Operating Temperature Range Charge: 0~45°C | Discharge: -20~60°C Ambient environmental test qualification
Engineering Validation

Equipment Compatibility & Engineering Fit Check

Before deploying GEB 14250 3.7V 280mAh Cylindrical Lithium-ion Battery Cell (1/2 AA Size, 14×25mm), verify these verified electrical and mechanical boundary requirements:

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Voltage & Charge Cutoff: Nominal 3.7V (charging CC/CV cutoff at 4.2V); confirm charger algorithm strictly matches this chemistry.
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Capacity & Energy Budget: Rated at 280mAh; verify system run-time calculations under planned discharge currents.
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Physical Envelope: Specified at Ø 14.5 ± 0.2 mm × H 25.0 ± 0.3 mm (1/2 AA Size); allow 5–10mm buffer in battery tray for expansion and lead harness.
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Cycle Reliability: Verified for ≥ 500–1,000 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) under controlled DOD and thermal management.
💡 Custom Engineering Fit: Contact our Shenzhen engineering team to verify CAD models, custom wire leads, or BMS CANbus telemetry for this product.
Operational Suitability

Operational Boundary Conditions

✔ Recommended Fit & Use Cases:

  • Electronic devices and OEM packs matched with 3.7V / 280mAh power curves.
  • Commercial designs requiring high volumetric energy density and predictable discharge curves.
  • Projects requiring batch consistency with automated barcode impedance sorting.

⚠ Operational Constraints & Limits:

  • Do not discharge below minimum cutoff voltage or charge beyond 4.2V.
  • Maintain operational surface temperature within -20°C to +60°C discharge (0°C to +45°C charge).
  • Ensure connector polarity and pin assignment match system schematics prior to initial power-up.
First-Party Standards

First-Party Manufacturing SOP & Export Compliance

🏭 Automated Grading & Matching Cells classified via automated OCV/ACIR sorting (ΔV ≤ 2–3mV, ΔR ≤ 1.2mΩ) for tight pack balance.
🔬 Joint Integrity & Testing Laser or ultrasonic busbar welding with destructive pull test validation ≥ 5.0–8.0 kgf per terminal.
📦 Full Cycle Aging Verification 100% full charge-discharge cycle screening and thermal imaging prior to warehouse dispatch.
🌐 Export & Regulatory Clearance Supplied with certified UN38.3 test summaries, MSDS, 1.2m drop reports, and Class 9 DG shipping documentation.
Turnaround: 7–10 days prototypes; 15–20 days mass production per custom tooling requirements. View Verified Manufacturing Equipment & Testing Facility →

⚙ Engineering FAQ & B2B Procurement Specifications

What is the turnaround time for custom battery pack prototypes and mass production for GEB 14250 3.7V 280mAh Cylindrical Lithium-ion Battery Cell (1/2 AA Size, 14×25mm)?
Custom prototype development typically requires 7 to 10 business days after CAD drawing approval and technical specification freeze. Commercial mass production turnaround is typically 15 to 20 business days. Standard OEM minimum order quantities (MOQ) start at 50 to 100 units depending on cell chemistry, custom mold tooling, and casing complexity.
Does GEB provide UN38.3 test summaries, MSDS, and Class 9 dangerous goods export compliance?
Yes. General Electronics Technology (GEB) provides complete first-party compliance verification for all industrial battery packs, including UN38.3 test reports, 1.2m drop test appraisal certificates, MSDS/SDS sheets, and certified dangerous goods packaging compliant with IATA air transport and IMDG maritime shipping regulations.
What smart telemetry protocols and BMS protection features are supported?
Our custom smart BMS architectures support industry-standard communication protocols including UAVCAN, CANbus 2.0B, SMBus, UART, and RS485. Integrated hardware protections include multi-tier over-voltage, over-discharge, continuous over-current, short-circuit, and dual-channel NTC thermal cutoff safeties with active cell balancing options.
What are the recommended continuous and peak burst discharge margins?
To maximize lifecycle endurance and electrochemical stability, we recommend designing with a 15% to 20% continuous discharge headroom margin under typical operating loads. Peak burst discharge ratings should strictly adhere to specified duration windows (typically ≤10 seconds) while ensuring pack operating temperatures remain below 65°C.

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