BAK INR2170-45D 21700 4500mAh 60A Lithium Ion Rechargeable Battery

Type   flat top
Rated Capacity    4400mAh
Typical Capacity    4500mAh
Rated Energy    15.84Wh
Typical Energy    16.2Wh
Limited Charging Voltage (Ucl)    4.2V
Upper Charging Voltage (Uup)    4.25V max
Discharge Cutoff Voltage (Udo)    2.0V (absolute), recommended 2.5V
Standard Charge Current    2.2A
Max Charge Current    13.2A
Standard Discharge Current    880mA
Max Discharge Current    60A (with 80°C cut off), 30A without cutoff
Cycle Life    ≥600 cycles @ 30A to 2.5V, ≥2640mAh (≥60%)
Internal Resistance    ≤5 mΩ (AC, 1kHz)
Diameter    Max 21.45mm
Length    Max 70.75mm
Weight    ≤69g
Operating Temp (Charge)    0°C to 45°C
Operating Temp (Discharge)    -20°C to 60°C (up to 80°C surface in use)
Max Surface Temp (Charge)    55°C (must cool below 45°C to recharge)
Max Surface Temp (Discharge)    80°C (must cool below 60°C to re-discharge)

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