Description
Introducing our 1300 mAh single-cell Lithium-ion Polymer (Li-Po) battery, built for projects that need longer runtime in a compact footprint. Its 802040 form factor packs high capacity into a slim, lightweight pouch, making it a great choice for IoT devices, portable gadgets and battery-powered ESP32 builds.
Specifications:
- Model: 802040
- Capacity: 1300 mAh
- Dimensions: 8.0 x 20 x 40 mm (Thickness x Width x Height)
- Nominal Voltage: 3.7V
- Fully Charged Voltage: 4.2V
- Discharge Cut-off Voltage: 3.0V
- Protection Circuitry: Built-in to prevent overcharging and over-discharging
- Connector Type: No connector (bare wire leads)
About This Li-Po Battery
Designed for compact, higher-capacity applications, this battery comes with built-in protection circuitry for safe operation. Charge it with a Li-Ion/LiPo constant-current/constant-voltage (CC/CV) charger at a recommended rate of 650 mA, up to a maximum of 1.3A.
Key Characteristics
- High Capacity: 1300 mAh in a 20 x 40 mm footprint for extended runtime.
- Lightweight Design: Ideal for portable and space-constrained projects.
- Safe and Reliable: Includes protection against overcharging and over-discharging.
- Versatile Use: Powers ESP32 and ESP8266 boards, IoT nodes, sensors and small devices.
Applications
- Portable IoT Devices and Wi-Fi Sensor Nodes
- Battery-Powered ESP32 / ESP8266 Projects
- Wearable Electronics and Handheld Gadgets
- Bluetooth Speakers and Remote-Controlled Toys
Note:
- Product images may vary slightly in size and color.
- Compatible with TP4056 charging modules. The standard 1A charge rate is safe for this 1300 mAh cell, so no modification is needed.
- Refer to our guide for proper usage and handling of Li-Po batteries.

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