Lithium Polymer Lipo Rechargeable Battery Model KP 357090 3.7V 4000mAH

Lithium Polymer Lipo Rechargeable Battery Model KP 357090 3.7V 4000mAH 

The KP 357090 3.7V 4000mAh Lithium Polymer Battery is a high-capacity, rechargeable Li-Po cell designed for medium- to high-power portable devices and embedded electronics. With a 4000mAh capacity and stable 3.7V output, it delivers reliable, long-lasting power for tablets, handheld devices, IoT modules, robotics, and other battery-operated electronics.

The model number 357090 indicates approximate dimensions of 3.5mm (thickness) × 70mm (width) × 90mm (length), providing a slim and space-efficient solution for devices requiring large capacity without excessive bulk. Built with premium lithium polymer technology, this battery ensures high energy density, low self-discharge, stable voltage output, and long cycle life. Optional PCM/BMS protection circuitry safeguards against overcharging, over-discharging, and short circuits.

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Features

• Nominal Voltage: 3.7V
• Capacity: 4000mAh
• High energy density for extended runtime
• Slim, lightweight design for space-constrained devices
• Stable discharge performance for sensitive electronics
• Low self-discharge for long-term storage
• Long cycle life for repeated charge/discharge cycles
• Built with premium-grade Li-Po cells
• Optional PCM/BMS protection for enhanced safety

Specifications

• Model: KP 357090
• Chemistry: Lithium Polymer (Li-Po)
• Nominal Voltage: 3.7V
• Capacity: 4000mAh
• Max Charge Voltage: 4.2V (CC/CV charging standard)
• Approx. Dimensions: 3.5 × 70 × 90 mm
• Operating Temperature:
• Charge: 0°C to 45°C
• Discharge: –20°C to 60°C
• Weight: Moderate, depending on batch

Applications

• Tablets, e-readers, and handheld devices
• IoT devices and smart modules
• Portable medical instruments
• Bluetooth speakers, wearables, and smart gadgets
• Robotics and DIY electronics projects
• High-capacity backup for microcontroller boards (Arduino, ESP, Raspberry Pi)
• Embedded devices requiring thin, high-capacity batteries
• Consumer electronics with high energy demands