3.7V 801742 500mAh TWS Wireless Earphone Polymer Lithium Battery

TWS charging cases require shrinking footprints with increasing playback demands. The 801742 500mAh cell addresses this “capacity ceiling,” fitting high energy into an ultra-compact 8x17x42mm space. It supports high-frequency micro-charging cycles without capacity loss, ensuring long-term case health. This cell solves “range anxiety” for wireless audio products while maintaining the pocketable form factor expected in the modern TWS market.

• Ultra-Compact: Specialized 801742 dimensions (8x17x42mm) for high-integration audio charging cases.
• Energy Density: 500mAh capacity optimized for multiple earbud recharge cycles.
• Charge Efficiency: Low self-discharge and high charge efficiency to maximize total standby time.
• Advanced Safety: Built-in protection against over-voltage and thermal instability in micro-electronics.
• OEM Ready: Flexible sizing and terminal options to match various PCB layouts and industrial designs.

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Description
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Battery specification: Polymer lithium battery 8.0 × 17.0 × 42.0mm
Nominal voltage: 3.7V
Nominal capacity: 500mAh
Application device: TWS wireless earphone polymer lithium battery
Product features: The maximum discharge current of this polymer battery can reach 1.0C

⊙ Single cell size: 8.0 × 17.0 × 42.0mm (Max, MM)
⊙ Nominal voltage: 3.7V
⊙ Nominal capacity: 500mAh
⊙ Charging cut-off voltage: 4.2V
⊙ Discharge cut-off voltage: 3.0V
⊙ Charging current: 1.0C
⊙ Discharge current: 1.0C
⊙ Working environment: Charging: 0 ℃~45 ℃, discharging: -40 ℃~+55 ℃
⊙ Lithium battery protection: overcharge protection, overdischarge protection, discharge overcurrent protection, discharge short circuit protection, etc
⊙ Product features:The maximum discharge current of polymer batteries can reach 1.0C, with a capacity of 500mAh and a long battery life
⊙ Application area: TWS earphone battery