GEB 201212 3.7V 10mAh Ultra-Small Lithium Polymer (LiPo) Battery Cell (2.2×12×12mm)
Ultra-compact Grade-A GEB 201212 3.7V 10mAh (0.037Wh) pouch lithium polymer cell (2.2×12×12mm, 0.65g) engineered for micro wearables, wearable fitness sensors, medical biosensors, and compact IoT tracking tags.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB 201212 3.7V 10mAh Ultra-Small Lithium Polymer (LiPo) Battery Cell (2.2×12×12mm) is a sub-miniature flexible pouch electrochemical cell engineered specifically for ultra-space-constrained wearable and ingestible/biometric micro-devices. Delivering a verified 3.7V nominal working voltage and 10mAh rated capacity (0.037Wh energy), this ultra-thin cell measures only 2.2mm in thickness with a footprint of 12×12mm and an ultra-light net weight of approximately 0.65g. Built with high-precision laminated aluminum foil packaging and pure nickel/copper micro-tabs, it supports standard 0.5C–1.0C continuous drain rates (5mA–10mA) and peak pulse loads up to 2.0C (20mA ≤ 5s). Housing designers must allocate an 8%–10% thickness swelling allowance across cyclic aging and specify low-temperature reflow or micro-spot-welded tab termination.
Product Overview
The GEB 201212 3.7V 10mAh Ultra-Small Lithium Polymer (LiPo) Battery Cell is an industrial-grade micro-power solution developed for wearable fitness sensors, true wireless earbud telemetry nodes, non-invasive health monitors, and miniature IoT asset tracking beacons. Utilizing precision nano-coated electrode foil stacking and specialized micro-cell sealing technology, the 201212 provides a stable 3.7V voltage plateau, 10mAh nominal capacity, and ultra-low self-discharge rates (≤ 3% per month @ 25°C). Measuring 2.2 ± 0.2 mm × 12.0 ± 0.5 mm × 12.0 ± 0.5 mm and weighing a negligible Approx. 0.65g ± 0.1g, it integrates seamlessly into curved, encapsulated, or ultra-thin product cavities.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Cobalt Oxide / High-Density Polymer (LiCoO2 / LiPo) |
| Nominal Voltage & Capacity | 3.7V / 10mAh (0.037Wh) |
| Physical Dimensions & Weight | 2.2 ± 0.2 mm × 12.0 ± 0.5 mm × 12.0 ± 0.5 mm / Approx. 0.65g ± 0.1g |
| Continuous Discharge Rating | 0.5C–1.0C (5.0mA–10.0mA continuous) |
| Peak Pulse Discharge | 2.0C (20.0mA pulse ≤ 5 seconds) |
| Target Applications | wearable fitness sensors, micro wireless earbuds, wearable biosensors, portable diagnostic instruments, IoT beacons |
| Terminal Configuration | Bare micro nickel/copper tabs / custom micro lead wires / optional micro PCM |
| Cycle Endurance | ≥ 500 cycles (@ 80% DoD, 25°C, 0.5C charge / 0.5C discharge) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Voltage | 3.7V | Standard measurement @ 25°C, 0.2C discharge |
| Charge Voltage Cutoff | 4.20V ± 0.02V | CC/CV charging mode, 0.02C termination current |
| Discharge Cutoff Voltage | 3.00V ± 0.03V | PCM or system low-voltage cutoff limit |
| Standard Charge Current | 0.2C–0.5C (2.0mA to 5.0mA) | Maximum recommended fast charge rate: 1.0C (10.0mA) |
| Internal AC Resistance (1kHz) | ≤ 800 mΩ | 1kHz AC impedance @ 25°C fully charged state (Micro-cell calibrated) |
| Cell Consistency Screening | ΔV ≤ 5mV | ΔR ≤ 20mΩ | Automated factory optical and electrochemical grading |
| Operating Temperature Range | Charge: 0°C to 45°C | Discharge: -10°C to 55°C | Storage: 15°C to 25°C (45%–60% state of charge) |
Integration & System Design Guidelines
Thermal & Mechanical Integration: Given the micro-scale pouch architecture, avoid applying mechanical clamping force exceeding 0.3 MPa to the cell body. When soldering lead wires to the micro nickel tabs, limit iron contact temperature to ≤ 350°C for less than 3 seconds per tab to protect the polymer seal barrier from thermal breakdown.
Swelling & Cavity Clearance: Allow a minimum 0.25mm lateral clearance and 0.20mm thickness clearance inside injection-molded ring or earbud housings to accommodate natural volumetric expansion across cycle life.
OEM Customization & B2B Sampling: GEB offers customized tab positioning, ultra-miniature flex-PCB protection modules (PCM) with Seiko/TI battery ICs, and pre-attached high-flex silicone micro-leads. Rapid prototyping samples delivered within 5–7 business days; full UN38.3, RoHS, and CE technical documentation supplied.
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 201212 3.7V 10mAh Ultra-Small Lithium Polymer (LiPo) Battery Cell (2.2×12×12mm), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.7V / 10mAh 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
What is a LiPo Battery [2026 Complete Engineering Guide]
In-depth overview of polymer chemistry, pouch packaging safety, high energy density, and custom geometric form factors.
Understanding S, P, and C in LiPo Battery Specs Explained
Clear technical guide to cell series/parallel architectures, voltage multiplication, and continuous vs burst discharge ratings.
Shipping Lithium Batteries: UN38.3 and IATA Compliance Checklist
Complete compliance guide for shipping lithium batteries: UN 38.3 test summary, IATA DGR Packing Instructions (PI 965-967), 30% SoC limits, and dangerous goods labeling.
