Polymer Lithium Ion Battery - 3.7v 550mAh

Polymer Lithium Ion Battery - 3.7v 550mAh

These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 550mAh! Comes terminated with a standard 2-pin JST-JCY with lead connector - 2.5mm spacing between pins. These batteries require special charging. Do not attempt to charge these with anything but a specialized LiPo charger.

Battery includes built-in protection against over voltage, over current, and minimum voltage.

Lithium Polymer Battery Pack 550mAh 3.7V with Protection Circuit Module (PCM)

Specifications

• Length: 40 ± 0.4mm
• Width: 30 ± 0.4mm
• Thickness: 5.0 0.2mm
• Cable: 150 ± 3.0mm (26AWG UL 1007)
• Weight: appr. 11.0g
• Rated capacity: 550mAh min, 580mAh typ.
• Nominal voltage: 3.7V
• Max. operating voltage range: 3.0V to 4.2V
• Charge voltage: 4.2 ± 50mV
• Initial charge current: Standard charge: 275mA
• Rapid charge: 550mA
• Charging cut-off (A or B)
• A) By time: Standard charge: 7 hours
• Rapid charge: 4 hours
• B) By min. current: 11.0mA
• Max continuous discharge current: 550mA
• Internal impedance (1kHz): approx 67mOhm
• Exp. cycle life: >500 cycles >70% of initial cap. (0.5C/0.5C)

Cell protection

• Overcharge detection: 4.325 ± 25mV
• (0.5 to 2.0 sec. delay, resume 4.075 ± 50mV)
• Overdischarge detection: 3.00V ± 25mV
• (6.25 to 250msec. delay, resume 2.9V ± 100mV)

Temperature range

• Charge: 0 to +45 C
• Discharge: -20 to +60C

Charge retention/Storage:

• 1 year at -20 to 20 C >70%
• 3 month at -20 to 45 C > 70%
• 1 month at -20 to 60°C > 70%