GEB 10440 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (AAA Size, 10×44mm)
Grade-A GEB 10440 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (10×44mm) (3.7V, 320mAh) cylindrical battery with 10×44mm 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.
Product Details
The GEB 10440 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (AAA Size, 10×44mm) is an ultra-compact rechargeable cylindrical power cell providing a 3.7V nominal working potential and 320mAh capacity (1.18Wh). Engineered to exact AAA envelope dimensions (Ø 10.0 × 44.0 mm, net weight ~9.5g), this micro-cylindrical cell provides more than triple the operating voltage of standard 1.2V NiMH or 1.5V alkaline cells. Equipped with an internal PTC thermal switch and rugged steel canister, it delivers reliable 1.0C–2.0C continuous current for micro LED penlights, laser pointers, wireless digital stylus pens, and compact telemetry sensors.
Product Overview
The GEB 10440 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (AAA Size, 10×44mm) is an ultra-miniature rechargeable power cell engineered for precision electronics requiring high gravimetric energy within the standard AAA physical envelope. Offering 3.7V nominal voltage and 320mAh rated capacity (1.18Wh total energy), this cell is built with automated electrode winding, airtight seal technology, and integrated thermal circuit protection. Measuring Ø 10.0 ± 0.2 mm × H 44.0 ± 0.3 mm with an ultra-light net weight of Approx. 9.5g ± 0.8g, it serves compact high-tech equipment including diagnostic medical penlights, presentation laser remotes, active stylus pens, and micro RC telemetry devices. Always verify device voltage compatibility (3.7V vs 1.5V) prior to deployment.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Cobalt Oxide / Nickel Manganese Cobalt (LCO/NCM 10440 Micro Cylindrical) |
| Nominal Voltage & Capacity | 3.7V / 320mAh (1.18Wh total energy) |
| Physical Dimensions & Weight | Ø 10.0 ± 0.2 mm × H 44.0 ± 0.3 mm (AAA Size) / Approx. 9.5g ± 0.8g |
| Continuous Discharge Rating | 1.0C–2.0C (0.32A–0.64A continuous discharge) |
| Peak Pulse Discharge | 3.0C (0.96A pulse ≤ 5s) |
| Target Applications | Micro LED penlights, digital stylus pens, laser pointers, micro RC models, portable medical diagnostic sensors |
| Terminal Form Factor | Button Top (direct battery slot fit) / Flat Top / Solder Tabs for PCB mounting |
| Service Life / Endurance | ≥ 500 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 Voltage / Cutoff | 4.20V ± 0.02V (CC/CV mode) | Regulation tolerance ±0.02V, cutoff @ 0.02C |
| Discharge Lower Cutoff | 3.00V ± 0.03V | Low-voltage cutoff limit |
| Internal AC Resistance (1kHz) | ≤ 55 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 |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 10440 3.7V 320mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (AAA Size, 10×44mm), 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 4.2V.
- 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 Manufacturing SOP & Export Compliance
Technical Whitepapers & Engineering Guides
High-Performance Cylindrical Batteries: 16 Years of B2B Manufacturing
Technical breakdown of automated cell sorting, delta IR matching, laser welding busbars, and cycle aging protocols.
Industrial Cylindrical Batteries: QC, Aging and Test Standards
Key factory inspection criteria for cylindrical packs, thermal management, vibration testing, and BMS protection thresholds.
Importing LiPo Batteries from China: Supply Chain Risk Guide
Practical B2B guide to importing LiPo batteries from China. Audit OEM factories, lock golden samples, verify UN38.3/MSDS compliance, and manage DG air/sea freight.
