GEB 402020 3.7V 100mAh Lithium Polymer (LiPo) Battery Cell (4×20×20mm)
Grade-A GEB 402020 3.7V 100mAh Lithium Polymer (LiPo) Battery Cell (4×20×20mm) (3.7V, 100mAh) pouch cell engineered for Ultra-compact wearable devices, wearable fitness sensors, Bluetooth earbuds, medical biosensors, and IoT asset trackers with ultra-low IR, optional PCM circuit, and UN38.3 documentation where applicable.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB 402020 3.7V 100mAh Lithium Polymer (LiPo) Battery Cell is a miniature square-format pouch battery tailored for space-critical consumer wearables and medical biosensors. Featuring a compact 4.0 × 20.0 × 20.0 mm footprint weighing approximately 2.6g, it delivers 3.7V nominal output, 100mAh rated capacity (0.370Wh), and reliable continuous discharge up to 1C (100mA) with low self-discharge and robust cycle retention.
Product Overview
The GEB 402020 3.7V 100mAh Lithium Polymer (LiPo) Battery Cell (4×20×20mm) is a Grade-A flexible pouch lithium polymer cell engineered for space-constrained electronic hardware. Delivering 3.7V nominal voltage and 100mAh rated capacity (0.370Wh energy), this cell utilizes advanced high-energy-density stacking technology, ultra-pure electrolyte formulation, and low internal impedance. Featuring physical dimensions of 4.0 × 20.0 × 20.0 mm (±0.3mm) with net weight of Approx. 2.5g–2.8g, it is targeted for ultra-compact wearable devices, wearable fitness sensors, Bluetooth earbuds, medical biosensors, and IoT asset trackers. Before housing integration, verify enclosure clearance, required wire length, connector model, and any manufacturer-specified expansion allowance for the selected cell.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Cobalt Oxide / NCM Polymer (LiPo Pouch) |
| Nominal Voltage & Capacity | 3.7V / 100mAh (0.370Wh total energy) |
| Physical Dimensions & Weight | 4.0 × 20.0 × 20.0 mm (±0.3mm) / Approx. 2.5g–2.8g |
| Continuous Discharge Rating | 0.5C–1.0C (50mA–100mA continuous discharge) |
| Peak Pulse Discharge | 2.0C (200mA pulse ≤ 5s) |
| Target Applications | Ultra-compact wearable devices, wearable fitness sensors, Bluetooth earbuds, medical biosensors, IoT asset trackers |
| Standard Terminals | Bare nickel tabs / optional custom PCM with JST, Molex, or solder leads |
| Baseline Cycle Life | ≥ 500–800 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 discharge |
| Upper Charge Voltage Cutoff | 4.20V ± 0.02V | CC/CV charge mode, 0.02C termination current |
| Discharge Lower Cutoff | 3.00V ± 0.03V | PCM / Controller automatic low-voltage cutoff threshold |
| Standard Charge Current | 0.2C – 0.5C (20mA to 50mA) | Max recommended fast charge: 1.0C (100mA) |
| Internal AC Resistance (1kHz) | ≤ 90 mΩ | 1kHz AC test @ 25°C fully charged state |
| Cell Consistency Screening | ΔV ≤ 3mV | ΔR ≤ 1.5mΩ | Pre-assembly automated barcode classification |
| Operating Temperature Range | Charge: 0~45°C | Discharge: -10~55°C | Storage: 15~25°C (40%–60% SoC storage) |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 402020 3.7V 100mAh Lithium Polymer (LiPo) Battery Cell (4×20×20mm), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.7V / 100mAh 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.
What Are the Important Uses of Energy Storage Batteries? Industrial, Grid & C&I BESS Applications
Explore the vital applications of industrial energy storage batteries (BESS): grid frequency regulation, peak shaving, C&I backup, and renewable microgrids.
