The 3.7V 18650 Lithium-Ion Battery with JST Connector is a rechargeable cylindrical Li-ion battery supplied with a pre-wired JST connector, making it convenient for connecting to compatible electronic circuits, modules, and DIY projects. It is suitable for portable electronics, Arduino projects, robotics, LED applications, and battery-powered devices.
Features
- Rechargeable lithium-ion battery
- Nominal voltage of 3.7V
- Cylindrical 18650 format
- Pre-attached JST connector
- Red and black power wires
- Compact and portable
- Suitable for DIY electronics projects
Specifications
| Specification | Value |
|---|---|
| Product Type | Rechargeable Li-ion Battery |
| Battery Type | 18650 Lithium-Ion |
| Nominal Voltage | 3.7V |
| Full-Charge Voltage | 4.2V |
| Battery Size | 18650 |
| Connector | JST |
| Connector Type | 2-Pin |
| Polarity | Red = Positive (+), Black = Negative (−) |
| Rechargeable | Yes |
| Chemistry | Lithium-Ion |
| Capacity | Model Dependent |
| Protection Circuit | Model Dependent |
Wire Configuration
| Wire | Function |
|---|---|
| Red | Positive (+) |
| Black | Negative (−) |
| JST Connector | Battery connection to compatible circuit |
Applications
- Arduino and microcontroller projects
- Portable electronic devices
- DIY robotics
- LED lighting
- Sensor projects
- Small DC motors
- Battery-powered modules
- Portable power projects
- Educational electronics
Advantages
- Rechargeable and reusable
- Compact 18650 form factor
- Convenient JST connector
- Easy to integrate into projects
- Good energy density
- Suitable for portable applications
- Pre-wired for quick installation
Package Includes
- 1 × 3.7V 18650 Li-ion Battery
- 1 × 2-Pin JST Connector with Wires
Important Safety Note: Use only a proper Li-ion charger or charging module with a 4.2V charge limit. Do not charge the cell directly from a 5V or 12V power supply. Avoid short circuits, overcharging, deep discharge, puncturing, or exposing the battery to excessive heat. The capacity and protection features should be verified from the specific battery model before use.







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