Lithium Polymer Batteries

A 3.7V lithium polymer (LiPo) battery is a type of rechargeable battery commonly used in portable electronics and RC (radio-controlled) applications due to its high energy density, lightweight construction, and ability to deliver high discharge rates.

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🔋 General Description

A 3.7V LiPo battery typically refers to a single-cell battery, as each LiPo cell has a nominal voltage of 3.7 volts. These batteries are available in a wide range of capacities and sizes depending on the application.

📦 Key Features

• Nominal Voltage: 3.7V
• Fully Charged Voltage: 4.2V
• Cutoff Voltage (discharged): ~3.0V
• Chemistry: Lithium Polymer (LiPo)
• Shape/Form Factor: Flat and rectangular (pouch cell), sometimes cylindrical
• Capacity Range: From <100mAh to several thousand mAh
• Connector: Often comes with JST, Molex, or bare leads (depends on application)

✅ Advantages

• Lightweight and compact
• High energy density
• Capable of high discharge rates
• No memory effect
• Flexible shapes and sizes

⚠️ Precautions

• Must be charged using a LiPo-compatible charger
• Overcharging or deep discharging can damage the battery
• Risk of swelling or fire if punctured or mishandled
• Often requires battery protection circuitry (PCM/BMS)

📌 Common Applications

• Drones and RC vehicles
• Smartphones and tablets
• Wearable electronics
• Bluetooth devices
• Portable medical equipment

Let me know if you need help choosing one or writing a datasheet-style description!

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