Discharging protection device for battery-operated portable electric light

A discharge protection circuit comprising:

• (a) a battery;
• (b) a load;
• (c) a normally open-circuit switch;
• (d) a normally closed-circuit switch;
• (e) a relay having a coil and a normally open contact set, the coil being connected in parallel with the load and the contact set being connected in series with the normally closed-circuit switch;
• and
• (f) circuit means connecting the series connected contact set and said normally closed-circuit switch in parallel with the normally open-circuit switch which in turn are connected in series with said battery and said load.

A discharge protection circuit for a battery connected to a load, said circuit comprising:

• (a) a relay having a coil which is connected in parallel with the load;
• (b) normally open first switch means for temporarily energizing said load and coil;
• and
• (c) second switch means for continuing to energize said load and said coil after initial energization by said first switch means until the voltage output by the battery falls below a predetermined level, said second switch means including a manual switch and a contact of said relay wired in series and wherein said first switch means and said second switch means are connected together in parallel with each other and in series with the battery, the load and said coil.