GEB LIR2032 3.6V 45mAh Rechargeable Lithium Coin Cell Battery with Solder Pins
Industrial-grade LIR2032 3.6V 45mAh rechargeable lithium-ion coin cell battery with laser-welded PCB solder pins, 500+ recharge cycles, and anti-leakage casing for RTC backup and IoT sensors.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB LIR2032 3.6V 45mAh Rechargeable Lithium Coin Cell Battery with Solder Pins is an industrial-grade secondary rechargeable lithium coin cell engineered for direct PCB through-hole mounting. Delivering a verified 3.6V/3.7V nominal operating voltage and 45mAh rated capacity (0.162Wh energy), this cell replaces disposable primary CR2032 batteries in hardware designs featuring integrated charging circuitry. Encapsulated in a corrosion-resistant stainless steel coin casing with factory laser-welded PCB solder pins, it supports 1.0C continuous discharge (45mA) and 2.0C pulse capability (90mA ≤ 5s) with a service life of ≥ 500 recharge cycles. Note: As an individual bare cell, charge voltage must be strictly regulated to 4.20V ± 0.02V via onboard charging controller circuitry.
Product Overview
The GEB LIR2032 3.6V 45mAh Rechargeable Lithium Coin Cell Battery with Solder Pins is an engineered micro-power solution featuring a 3.6V / 3.7V nominal rating and 45mAh capacity (@ 0.2C discharge to 2.75V cutoff). Manufactured with Grade-A lithium-ion chemistry, it provides reliable cycling performance and low self-discharge for memory backup and compact wireless nodes. Encased in an anti-leakage stainless steel coin casing measuring Ø 20.0 ± 0.1 mm × H 3.2 ± 0.1 mm and weighing Approx. 3.0g ± 0.2g, this cell features precision laser-welded solder pins (2-pin / 3-pin configurations) for rigid wave soldering or manual surface mounting on printed circuit boards. Widely deployed in TWS Bluetooth earbuds, wearable biosensors, automotive key fobs, IoT tracking beacons, and motherboard Real-Time Clock (RTC) backup.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Rechargeable Lithium-ion (LiCoO2 Coin Cell) |
| Nominal Voltage & Capacity | 3.6V / 3.7V / 45mAh (0.162Wh) |
| Physical Dimensions & Weight | Ø 20.0 ± 0.1 mm × H 3.2 ± 0.1 mm / Approx. 3.0g ± 0.2g |
| Continuous Discharge Rating | 1.0C (45mA continuous discharge) |
| Peak Pulse Discharge | 2.0C (90mA peak pulse ≤ 5s) |
| Target Applications | TWS Bluetooth earbuds, smart wearable sensors, automotive key fobs, motherboard RTC backup, IoT beacons |
| Standard Connectors / Terminals | Through-hole 2-pin / 3-pin laser-welded PCB solder pins (horizontal/vertical layout) |
| Service Life / Endurance | ≥ 500 cycles (@ 80% DoD, 25°C, 0.2C rate) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Operating Voltage | 3.6V / 3.7V | Standard measurement @ 25°C, 0.2C discharge |
| Upper Charge Voltage Cutoff | 4.20V ± 0.02V | CC/CV charge mode (0.2C charge, 0.02C termination) |
| Discharge Lower Cutoff | 2.75V ± 0.03V | Host device / controller low-voltage cutoff threshold |
| Standard Current Rating | 45mA continuous (1.0C rate) | Continuous rated discharge equilibrium |
| Peak Surge Tolerance | 90mA peak pulse (2.0C rate, ≤ 5s) | Transient RF transmission pulse capability |
| Internal AC Resistance (1kHz) | ≤ 450–600 mΩ | 1kHz AC test @ 25°C fully charged state |
| Operating Temperature Range | Charge: 0°C to +45°C | Discharge: -20°C to +60°C | Storage: -10°C to +35°C |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB LIR2032 3.6V 45mAh Rechargeable Lithium Coin Cell Battery with Solder Pins, verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.6V / 45Ah 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 4.09V.
- 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
Lithium Battery Quality Control Checklist for B2B Projects
15-point factory testing protocol covering automated cell grading, delta IR matching, spot-weld pull tests, and aging SOP.
LiPo Battery Shipping Documents: What Importers Should Prepare
Class 9 export compliance, UN38.3 test summaries, MSDS/SDS validation, and maritime/air cargo dangerous goods SOP.
Custom OEM/ODM Battery Engineering & Manufacturing Workflow
Turnkey engineering process: initial CAD modeling, smart BMS firmware development, prototype validation, and mass production.
