Thanks BradtheRad, yeah I agree regarding the drop in battery voltage when the battery is taken off charge. Currently, I am trying to observe the characteristic of the battery by using a power supply to charge the battery. The upper limit current is set to 100mA and charging voltage is set to 1.6V, but from the reading in the measurement, the battery is only drawing about 14mA of current. Is it right that since I set my charging voltage to 1.6V, the battery voltage will reach 1.6V when almost fully charged?