Manganese Titanium Lithium Rechargeable Batteries (MT series): Individual Specifications MT621 MT920 ■ Dimensions(mm) ■ Dimensions(mm) +0 ∅6.8 -0.15 ∅9.5 -0.15 ∅3.5 ∅5.0 +0 0.05 0.05 +0 +0 2.05 -0.2 2.15 -0.2 Weight:0.45g Weight:0.25g ■ Specification ■ Specification Nominal voltage (V) 1.5 Nominal voltage (V) 1.5 Nominal capacity (mAh) 2.5 Nominal capacity (mAh) 4.0 Continuous standard load (mA) 0.05 Continuous standard load (mA) 0.10 -20 ~ +60 Operating temperature (C) -20 ~ +60 Operating temperature (C) ■ Charge / discharge characteristics ■ Charge / discharge characteristics 3.0 3.0 Temp : 2 0 C Load : 5 0 A 2.0 charge 1.5 1.0 2.0 charge 1.5 1.0 discharge discharge 0.5 0.5 0.0 0.0 Temp : 2 0 C Load : 1 0 0 A 2.5 Voltage(V) Voltage(V) 2.5 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0.5 1.0 5.0 1.5 2.0 2.5 3.0 3.5 Discharge capacity(mAh) 4.0 4.5 5.0 Discharge capacity(mAh) ■ Consumption current vs. Duration time ■ Consumption current vs. Duration time Temp.: 20˚C Cut off voltage: 1.0V 100 Duration(days) Duration (days) 500 300 200 Temp. cut off voltage 50 30 20 10 5 3 2 Consumption current ■ Discharge characteristics 1 3 5 7 10 30 50 100 Consumption Current (µA) 300 1000 2.5 Load : 1 0 k Voltage (V) 2.0 60˚C 1.5 20˚C 1.0 -10˚C 0.5 0.0 0.0 LITHIUM HANDBOOK 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Discharge capacity(mAh) 4.0 4.5 5.0 AUGUST 2005 This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications are subject to modification without notice. Contact Panasonic for the latest information.