Lithium Polymer Lipo Rechargeable Battery Model KP 500840 3.7V 250mAH

Lithium Polymer Lipo Rechargeable Battery Model KP 500840 3.7V 250mAH 

The KP 500840 Lithium Polymer (LiPo) Rechargeable Battery is a compact and lightweight 3.7V single-cell battery designed for small portable electronic devices. With a capacity of 250mAh, this cell is ideal for low-power applications where size, weight, and efficiency are critical.

The model number 500840 indicates its approximate dimensions (5.0 mm thickness × 08 mm width × 40 mm length), making it a slim and space-saving power source. LiPo technology provides excellent energy density, stable output voltage, and low self-discharge, ensuring reliable and long-lasting performance.

This battery is commonly used in miniature electronics such as wearable devices, Bluetooth modules, wireless sensors, and compact gadgets. Some variants include an integrated protection circuit module (PCM) to prevent overcharge, over-discharge, and short circuits.

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Features

• 3.7V single-cell LiPo battery
• Compact 500840 slim form factor
• Lightweight and portable
• Stable output voltage with high energy density
• Low self-discharge for extended standby time
• Optional protection circuit (PCM)
• Rechargeable with long cycle life
• Suitable for miniature electronics and embedded systems

Specifications

• Model: KP 500840
• Battery Type: Lithium Polymer (LiPo)
• Nominal Voltage: 3.7V
• Capacity: 250mAh
• Max Charging Voltage: 4.2V
• Discharge Cut-off Voltage: 2.75–3.0V
• Standard Charging Current: 0.5C (? 125mA)
• Maximum Charging Current: 1C (? 250mA)
• Max Continuous Discharge Current: 1C (? 250mA) or as per manufacturer
• Cycle Life: 300–500 cycles
• Dimensions (approx): 5 mm (T) × 8 mm (W) × 40 mm (L)
• Weight: Approx 5–10g
• Terminal Type: Bare leads / JST connector (varies by supplier)
• Protection: Optional overcharge/over-discharge/short-circuit PCM

Applications

• Wearable devices
• Bluetooth earphones & headsets
• Smart bands and fitness trackers
• Miniature IoT devices and sensors
• Wireless modules and beacons
• Small portable electronics
• GPS trackers
• LED gadgets and toys
• DIY embedded electronics