SPIDER Automation | 3.7V 50mAh Micro Li-Po Battery | PCM Protected Ultra-Compact Rechargeable Cell
The 3.7V 50mAh Micro Li-Po Battery is an ultra-compact single-cell Lithium Polymer rechargeable battery developed for miniature electronic products, IoT devices and space-constrained embedded applications. Its small physical profile supports integration into electronic assemblies where available installation space and battery weight are important design considerations.
The battery incorporates an integrated Protection Circuit Module (PCM) and provides a nominal 3.7V supply. Its 50mAh rated capacity and specified discharge rate make it suitable for compatible miniature battery-powered electronic systems. The charging circuit and connected load should be selected according to the battery’s electrical characteristics and the requirements of the application.
Technical Features & Functional Characteristics
- Ultra-Compact Lithium Polymer Design: Provides a rechargeable power source for miniature electronic products designed around a single-cell Li-Po voltage range.
- 50mAh Energy Storage Capacity: Supports small electronic applications with low energy-storage requirements.
- Integrated PCM Protection: Includes a Protection Circuit Module within the battery assembly.
- Specified 0.5C Discharge Rate: Defines the stated discharge rate relative to the battery’s rated capacity.
- Miniature Dimensions: The 15 × 10.5 × 4.5mm form factor supports integration into small electronic enclosures and compact product designs.
- Lightweight Construction: Helps minimise the battery’s contribution to the overall weight of miniature portable equipment.
- Rechargeable Operation: Designed for repeated charging and discharging using a compatible Li-Po charging system.
Electrical Configuration & Charging Information
This battery uses a single-cell Lithium Polymer configuration with a nominal voltage of 3.7V. A fully charged conventional single-cell Li-Po battery reaches 4.2V. Charging must therefore be performed using a compatible 4.2V Constant Current / Constant Voltage (CC/CV) charging profile.
The specified 0.5C discharge rate corresponds to a calculated current of 25mA based on the rated capacity. This is a mathematical C-rate conversion and should not be treated as an independently verified continuous-current rating. The integrated PCM is a protection circuit, not a battery charger or voltage regulator.
Applications
The miniature dimensions and rechargeable characteristics make this battery suitable for compatible electronic products that require a small integrated battery power source.
- Miniature IoT Devices: Compact battery-powered sensor nodes and low-power connected electronic modules.
- Portable Electronics: Miniature handheld devices requiring a compact rechargeable power source.
- Electronic Gadgets: Small consumer electronics and custom-designed miniature products.
- Wireless Devices: Compact battery-powered wireless modules and accessories, where electrical requirements are compatible.
- Electronic Toys: Small rechargeable power systems for compatible miniature electronic toys.
- Embedded Systems: Miniature microcontroller-based products designed for single-cell Li-Po operation.
- DIY Electronics Projects: Compact prototypes, miniature circuits and small battery-powered assemblies.
- Compact Sensor Modules: Low-power sensing products requiring an onboard rechargeable battery.
Package Contents
- 1 × 50mAh PCM Protected Micro Li-Po Battery
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | Micro Lithium Polymer (Li-Po) Rechargeable Battery |
| Battery Chemistry | Lithium Polymer (Li-Po) |
| Cell Configuration | Single Cell (1S) |
| Nominal Voltage | 3.7V DC |
| Full-Charge Voltage | 4.2V DC |
| Rated Capacity | 50mAh (0.05Ah) |
| Nominal Energy | Approximately 0.185Wh (calculated from nominal voltage × rated capacity) |
| Discharge Rate | 0.5C |
| Calculated Current at 0.5C | 25mA (calculated from rated capacity) |
| Protection Circuit | Integrated PCM Protection |
| Charging Method | Single-cell Li-Po CC/CV charging |
| Charging Voltage | 4.2V DC |
| Recommended Charging Current | Refer to the battery datasheet |
| Cycle Life | 500 cycles |
| Operating Temperature | 0°C to 50°C |
| Length | 15mm |
| Width | 10.5mm |
| Height / Thickness | 4.5mm |
| Overall Dimensions (L × W × H) | 15 × 10.5 × 4.5mm |
| Weight | 0.05g (as listed in the supplied specifications) |
| Rechargeable | Yes |
| Package Quantity | 1 Battery |
Connection & Operating Recommendations
Use a charging and power-management arrangement specifically designed for a single-cell Li-Po battery. The battery should operate within its specified temperature range, and the connected electronics must be compatible with its voltage and discharge characteristics.
- Use a Compatible Charging Circuit: Charge through a dedicated single-cell Li-Po charger using a 4.2V CC/CV charging profile.
- Select the Appropriate Charging Current: Follow the battery datasheet’s charging-current recommendation. The discharge C-rate does not establish the permitted charging current.
- Observe Battery Polarity: Connect positive and negative terminals correctly. Confirm the wiring or datasheet before making connections.
- Match the Connected Load: Ensure the device’s voltage and current requirements are compatible with the battery’s electrical ratings.
- Avoid Excessive Heat: Keep the battery away from direct sunlight and external heat sources.
- Allow Temperature to Stabilise: Do not charge a battery while it remains warm after use or operate it while it remains warm after charging.
- Disconnect During Extended Non-Use: Disconnect the battery from the equipment where practical when it will remain unused for an extended period.
- Use Suitable Storage: Store the battery in a non-conductive, fire-resistant container, away from metal objects and other conductive materials.
- Prevent Physical Damage: Do not puncture, crush, bend or deform the battery pouch.
