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3.7V 300mAH Li-Po Rechargeable Battery

SKU: BZY432KQY2
★★★★ ★ ★
4.5 (78 reviews)
The 3.7V 300mAh Li-Po Rechargeable Battery is a compact and lightweight Lithium Polymer battery designed to provide a rechargeable power source for small electronic devices, portable electronics, IoT modules, sensors, wireless systems, miniature robotics, and DIY electronics projects. With a nominal voltage of 3.7V and a capacity of 300mAh, this single-cell battery provides a practical solution for applications where a...
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The 3.7V 300mAh Li-Po Rechargeable Battery is a compact and lightweight Lithium Polymer battery designed to provide a rechargeable power source for small electronic devices, portable electronics, IoT modules, sensors, wireless systems, miniature robotics, and DIY electronics projects. With a nominal voltage of 3.7V and a capacity of 300mAh, this single-cell battery provides a practical solution for applications where a small rechargeable power source is required.

Lithium Polymer technology allows the battery to use a lightweight pouch-cell construction, making it suitable for compact electronic products where space and weight are important considerations. The battery provides a nominal voltage of 3.7V and reaches approximately 4.2V when fully charged. Its compact form factor makes it suitable for embedding inside small electronic enclosures and portable projects.

With a rated capacity of 300mAh, the battery stores approximately 1.11Wh of nominal energy based on its 3.7V nominal voltage. Actual operating time depends on the current consumption of the connected device, discharge conditions, battery condition, temperature, and overall system efficiency. The battery can be repeatedly recharged when used with an appropriate single-cell Li-Po charging circuit.

The 3.7V 300mAh Li-Po Rechargeable Battery is suitable for low-power electronics, sensors, Bluetooth modules, small IoT devices, wearable electronics, miniature robots, wireless projects, Arduino and ESP32-based projects, portable displays, and other compact battery-powered applications. A dedicated 4.2V single-cell Li-Po charger should be used for charging, and suitable protection circuitry should be provided where required by the application.

Designed for electronics hobbyists, students, engineers, robotics enthusiasts, product developers, and DIY makers, this 300mAh Li-Po battery provides a convenient rechargeable power source for compact electronic systems where low weight, small size, and rechargeable operation are important.

Key Features

3.7V Li-Po Rechargeable Battery
300mAh Rated Capacity
Single-Cell Lithium Polymer Battery
3.7V Nominal Voltage
4.2V Fully Charged Voltage
Approximately 1.11Wh Nominal Energy
Rechargeable and Reusable
Lightweight Pouch Cell Construction
Compact and Slim Design
High Energy Density
Suitable for Portable Electronics
Ideal for DIY Electronics
Suitable for Arduino Projects
Compatible with ESP32 Projects
Ideal for IoT Devices
Suitable for Wireless Modules
Suitable for Bluetooth Projects
Ideal for Small Sensors
Suitable for Miniature Robotics
Perfect for Wearable Electronics
Suitable for Portable Displays
Ideal for Embedded Systems
Suitable for Battery-Powered Devices
Compact Space-Saving Design
Easy to Integrate
Low-Voltage Single-Cell Operation
Suitable for Custom Electronics
Ideal for Prototype Development
Suitable for Educational Projects
Useful for Robotics Applications
Suitable for Low-Power Devices
Practical Portable Power Solution
Easy to Recharge with Suitable Charger

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Product Name: 3.7V 300mAh Li-Po Rechargeable Battery
Product Type: Rechargeable Lithium Polymer Battery
Battery Chemistry: Lithium Polymer (Li-Po)
Battery Configuration: 1S
Number of Cells: 1
Nominal Voltage: 3.7V
Fully Charged Voltage: 4.2V
Rated Capacity: 300mAh
Nominal Energy: Approximately 1.11Wh
Battery Type: Rechargeable
Battery Construction: Lithium Polymer Pouch Cell
Battery Shape: Flat Pouch Cell
Charging Method: Constant Current / Constant Voltage
Recommended Charger: Suitable 4.2V Single-Cell Li-Po Charger
Maximum Charging Voltage: 4.2V
Charging Requirement: Dedicated Li-Po Charging Circuit
Battery Protection: Depends on Product Version
Protection Circuit: Depends on Product Version
Protected / Unprotected: Depends on Product Version
Discharge Capability: Depends on Battery Construction and Manufacturer
Cycle Life: Depends on Charging, Discharging and Operating Conditions
Self-Discharge: Low
Terminal Type: Wire / Connector Depending on Product Version
Battery Connection: Positive and Negative Leads
Operating Temperature: Depends on Manufacturer Specification and Application
Storage Conditions: Store in a Cool, Dry Environment
Battery Management: Suitable Protection Circuit Recommended
Series Connection: Possible With Proper BMS and Matched Cells
Parallel Connection: Possible With Properly Matched Cells and Protection
Package Includes: 1 × 3.7V 300mAh Li-Po Rechargeable Battery

Additional Resources

Li-Po Battery.PDF

FAQ

1. What is the voltage and capacity of this Li-Po battery?

The battery has a nominal voltage of 3.7V and a rated capacity of 300mAh. Its fully charged voltage is approximately 4.2V.

2. How much energy does the 300mAh Li-Po battery provide?

At its nominal voltage, the battery provides approximately 1.11Wh of nominal energy, calculated from 3.7V × 0.3Ah. Actual usable energy depends on the connected load and operating conditions.

3. How should this Li-Po battery be charged?

The battery should be charged using a dedicated single-cell Li-Po charger designed for a 4.2V charging voltage. It should not be connected directly to an unregulated power supply.

4. Does this battery include a protection circuit?

Protection depends on the specific battery version. Unless protection is explicitly specified, the battery should be treated as an unprotected Li-Po cell and used with suitable charging and protection circuitry.

5. What can this 300mAh Li-Po battery be used for?

It can be used for small IoT devices, sensors, Bluetooth modules, Arduino and ESP32 projects, miniature robots, wearable electronics, portable displays, wireless devices, and other compact low-power applications requiring a rechargeable 3.7V power source.

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