652540-650mAh Bluetooth headset lithium battery for TWS


  • Polymer battery, using lithium cobaltate high energy density material, long cycle life, low internal resistance, high current, small volume, high energy.
  • Green and environmentally friendly, free of Mercury, Chromium, Lead, and other harmful substances.
  • Passed authoritative testing and certification, with UL, CE, KC, PSE, and UN38.3 certification.
  • High-security performance, built-in protection board, over-charge / over-discharge protection, Customers can use safely.



TWS true wireless Bluetooth headset

Model: 602540-650mAh Nominal Voltage:  3.7V
Power: 2.405Wh Shipping Voltage:  3.8V-3..95V
Charging Cut-off Voltage:  4.2V Discharge Cut-off Voltage: 3.0V
Internal Resistance: ≤ 90 mΩ Standard Charging Current: 0.2C
Max. Charging Current: 1.0C Standard Discharge Current:  0.2C
Max. Discharge Current: 1.0C Nominal Capacity:  500mAh
Dimension: 6.5 * 25.0*40.0mm (Max.) Discharge Temperature: 0℃- +45 ℃
Charging Temperature:  -20℃- +60 ℃ Cycle Life:  300 times >80%
Certification: UL, CE, KC, PSE, ROHS, UN38.3, MSDS…
Safety Protection:  Overcharge, over-discharge, over current and short circuit protection