GEB 14280 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (1/2 AA Size, 14×28mm)
Grade-A GEB 14280 3.7V 320mAh cylindrical Li-ion battery cell (1/2 AA size, Ø14.0×28.0mm, Approx. 13.0g) engineered for wireless smart meters, AMR sensors, compact telemetry, miniature LED lights, and portable medical instruments.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB 14280 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (1/2 AA Size, 14×28mm) is a miniature Grade-A cylindrical power cell delivering a verified 3.7V nominal operating voltage and 320mAh rated capacity (1.18Wh energy). Enclosed in an ultra-compact 1/2 AA cylindrical steel can (Ø14.0 × 28.0mm) weighing only 13.0g, this cell is engineered specifically for space-constrained electronics requiring higher voltage than primary alkaline or Ni-MH cells. It provides reliable 1.0C–2.0C continuous discharge (320mA–640mA), an integrated pressure vent, and tight voltage/internal resistance grouping for wireless smart water/gas meters, AMR transmitters, micro IoT telemetry beacons, and miniature medical diagnostic tools.
Product Overview
The GEB 14280 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (1/2 AA Size, 14×28mm) is an industrial rechargeable cell manufactured to rigorous electrochemical standards for ultra-compact electronic hardware. Delivering 3.7V nominal potential and 320mAh rated capacity, this cell features a robust nickel-plated steel canister, glass-to-metal hermetic seal, and internal safety vent. Measuring Ø 14.0 ± 0.2 mm × H 28.0 ± 0.3 mm (1/2 AA form factor) and weighing Approx. 13.0g ± 0.5g, it is engineered for wireless utility meter telemetry, IoT asset sensors, laser pointers, tactical micro-flashlights, and portable healthcare monitoring instruments. Standard terminals include flat-top, button-top, or custom spot-welded solder tabs for PCB integration.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Core Chemistry | Lithium Nickel Cobalt Manganese Oxide (NCM / Li-ion) |
| Nominal Voltage & Capacity | 3.7V / 320mAh (1.18Wh energy) |
| Physical Dimensions (D×H) | Ø 14.0 ± 0.2 mm × H 28.0 ± 0.3 mm (1/2 AA Size) |
| Single Cell Weight | Approx. 13.0g ± 0.5g |
| Continuous Discharge Rating | 1.0C–2.0C continuous (320mA to 640mA) |
| Peak Pulse Discharge | 3.0C transient pulse (960mA ≤ 5s) |
| Target Applications | Wireless AMR meters, IoT sensors, micro flashlights, compact medical devices |
| Terminal Form Factor | Flat Top / Button Top / Pre-welded Solder Tabs |
| Service Life / Endurance | ≥ 500–1,000 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Operating Voltage | 3.7V | Standard measurement @ 25°C, 0.2C rate |
| Upper Charge Cutoff Voltage | 4.20V ± 0.02V | CC/CV mode, 0.02C termination current |
| Discharge Lower Cutoff Limit | 2.75V – 3.00V ± 0.03V | Safety lower voltage threshold |
| Standard Charge Current | 0.2C – 0.5C (64mA to 160mA) | Max recommended fast charge: 1.0C (320mA) |
| Internal AC Resistance (1kHz) | ≤ 70–90 mΩ | 1kHz AC test @ 25°C fully charged state |
| Operating Temperature Range | Charge: 0°C to +45°C | Discharge: -20°C to +60°C | Ambient environmental test qualification |
| Safety Standards Compliance | UN38.3, CE, RoHS, MSDS, IEC 62133 | Certified for global industrial B2B shipment |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 14280 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (1/2 AA Size, 14×28mm), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.7V / 320mAh 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 4.20V.
- 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 Manufacturing SOP & Export Compliance
Technical Whitepapers & Engineering Guides
High-Performance Cylindrical Batteries: 16 Years of B2B Manufacturing
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Industrial Cylindrical Batteries: QC, Aging and Test Standards
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