“Dry cell is not rechargeable”, this is what people think. This concept can be proven wrong by this particular project ‘Dry cell charger‘. Now here is another electronics trick to make the concept of ‘Battery Saver’ come true. The project battery sever not only charges dry cell but also enhances battery life by saving energy. The project ‘Battery saver circuit’ is considered very useful project for those, who run their appliance solely based on dry cell.
Circuit Description Batter Saver Circuit:-
The circuit is so simple that anyone can understand, the working of the circuit is somehow similar to Dry cell charger based on PCR (Periodic Current Reversal) principle. As we all know that 0.6 volt is dropped by silicon diode. The power supply from battery is given to appliance only when the mains is off through diode D3, rest of the energy from mains is used to supply through diode D2. Diode D4 is connected to positive terminal from mains supply for charging.
PARTS LIST OF BATTERY SAVER CIRCUIT
| Capacitors |
| C1 = 1000 µF, 16V (Electrolytic Capacitor) |
| Semiconductors |
| D1 – D4 = 1N4007 (Rectifier Diode) |
| Miscellaneous |
| X1 = according to need or battery power |