Nicad Battery charger include voltage limiting

In this my circuit , which is one of a series of simple battery charger , but this circuit to charger the Nicad battery . This circuit included with current and voltage limting . Why use it ?? because with current voltage you can choose voltage to charge a battery , and the limiting voltage use limit voltage if the battery is fully, because if battery fully that damaged quickly.

See this schematic below :

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Lamp 1 will glow brightly and the LED will be out when the battery is low or run out and the circuit is processing being to charged , but the LED will bright and the light dim when the battery is almost ready. Output voltage between 12 to 14 volt with current 100 mA.