Sealed Rechargeable Polymer Lithium-ion Battery

Sealed Rechargeable Polymer Lithium-ion Battery 

2. Description and Model

2.1 Description Rechargeable Polymer Lithium-ion Battery

2.2 Model LIP752935-700-1S2P battery pack with leading wire

3. Ratings

3.1 Nominal Voltage 3.7V

3.2 Nominal Capacity 1400mAh

3.3 Typical Capacity 1450mAh after standard charge and standard discharge

3.4 Standard Charge Constant current at 700mA to 4.2V, followed constant voltage at 4.2V

till current taper to 14mA.

3.5 Fast Charge Constant current at 1400mA to 4.2V, followed constant voltage at 4.2V

till current taper to 14mA.

3.6 Standard Discharge Constant current at 280mA to 2.75V.

3.7 Maximum Continuous Charge Current 1400mA

3.8 Maximum Continuous Discharge Current 2000mA

3.9 Discharge End-off Voltage 2.75V

3.10 Operating Temperature Charging: 0ºC to 45ºC

Discharging: -10ºC to 60ºC

3.11 Storage Temperature Less than 30 days -10ºC to 45ºC

Less than 3 months -10ºC to 35ºC

Less than 1 year -10ºC to 25ºC

3.12 Dimensions Height 38.0mm (Maximum)

Width 30.0mm (Maximum)

Thickness 16.0mm (Maximum)

3.13 Leading Wire AWG24# UL1007 wire, red (+) / black (-)

Wire Length (out of battery pack) 80±5mm

3.14 Typical Weight 38g

4. Performance

Unless otherwise stated, tests should be conducted under the following conditions:

Time frame Within one month of delivery

Ambient temperature 20 ± 5ºC

Relative Humidity 65 ± 20%

4.1 Standard Capacity

The initial capacity is the discharge capacity of the cell measured with a discharge current of 0.2C to a discharge end-off voltage of 2.75V within 30 minutes after the standard charge.

Up to three cycles are permitted for this test.

Discharge capacity = 1400mAh

4.2 Open Circuit Voltage

The open circuit voltage is above 3.75V within one hour after standard charge

4.3 Initial Impedance (for reference only)

The initial internal resistance is measured at 1KHz within 30 minutes after standard charge.

Initial Impedance = 150mOhm

4.4 Fast Discharge Capacity

Fast discharge capacity is measured with a discharge current of 1C to a discharge end-off voltage of 2.75V after standard charge.

Fast discharge capacity = 1260mAh

4.5 Charge Retention

After standard charge and storage time of 28 days at ambient temperature, the capacity is measured with a discharge current of 0.2C to a discharge end-off voltage of 2.75V.

Capacity = 1190mAh

4.6 Discharge capacity at -10?

After the standard charge, the battery is stored in an ambient temperature of -10?±2? for not less than 16h and not more than 24h. The capacity is measured with a discharge current of 0.2C to a discharge end-off voltage of 2.75V.

Discharge capacity = 980mAh.

4.7 Discharge capacity at 55?

After the standard charge, the battery is stored in an ambient temperature of 55?±2? for not less than 16h and not more than 24h. The capacity is measured with a discharge current of 0.2C to a discharge end-off voltage of 2.75V.

Discharge capacity = 1260mAh.

4.8 Cycle life