3.7 v Li-ion smart battery charger

A 3.7V Li-ion smart battery charger is a device specifically designed to charge rechargeable lithium-ion batteries with a nominal voltage of 3.7 volts. These chargers are typically equipped with intelligent features to ensure safe and efficient charging, protecting the battery from overcharging, over-discharging, and other potential hazards.  

Description:

• Input Voltage: Typically powered by a USB power adapter or other external power source.
• Output Voltage: 3.7V (nominal) with a constant current charging mode.
• Charging Current: Varies depending on the charger model and battery type, but commonly ranges from 500mA to 2A.
• Charging Time: The charging time depends on the battery’s capacity and the charger’s output current. Generally, it takes several hours to fully charge a typical Li-ion battery.  
• Safety Features: Built-in protection circuits to prevent overcharging, over-discharging, short circuits, and overheating.
• LED Indicators: Visual indicators to show the charging status, such as a red light during charging and a green light when fully charged.  
• Compatibility: Designed to work with various Li-ion battery types and sizes, including popular formats like 18650, 26650, and cylindrical cells.  

Specifications:

• Input Voltage: 5V DC (USB)
• Output Voltage: 3.7V DC (constant voltage)
• Charging Current: 1A (adjustable)
• Charging Time: Approximately 4-6 hours for a 2000mAh battery
• Battery Types: Compatible with 3.7V Li-ion batteries (18650, 26650, etc.)  
• Safety Features: Overcharge protection, over-discharge protection, short circuit protection, temperature protection  
• LED Indicators: Red LED during charging, green LED when fully charged  
• Dimensions: 85 x 55 x 25mm
• Weight: 50g

Additional Features (may vary depending on the model):

• Temperature sensing: Automatically adjusts charging current based on battery temperature.
• Battery capacity detection: Estimates the battery’s remaining capacity.  
• USB output: Some chargers can also function as power banks, providing a USB output for charging other devices.

Note: It is essential to use a compatible charger specifically designed for 3.7V Li-ion batteries to ensure safe and optimal charging performance. Incorrect charging can lead to battery damage or safety hazards.