Ni Cad battery advantages in that charger to reuse again. And thus may itself be a disadvantage. Because if a user brought back a new charger while the residual voltage will cause the memory effect that this phenomenon is a result. reaction when the battery voltage volt battery to this level of power will not come out. And lifetime is shorter by Solutions using energy r up To secure the discharge by using a longer usage.
This circuit is used to discharge the battery at a voltage bias to Q1 adjusted using VR1 serves volt bias to the base pin of Q1 is appropriate to bring the battery if the battery has voltage remaining Lamp. Light up until the battery runs out Lamp will gradually vanish if there is no battery power remaining lamp will not start.
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