Alkaline Cell Charger Circuit Diagram
This is the Simple Alkaline Cell Charger Circuit Diagram . This charger works as two channel current limited voltage source 1.6 V. Low charge current allows charging deep discharged cells (0.7 - 0.8 V) and non-rechargeable cells. Charge current can be changed by R9 and R10. With 470 Ohm is approx 7 mA. LED1 and LED indicates when cell voltage reached 1.6 V and cell is fully charged. If power supply is disconnected, reverse discharging current is negligibly (less than 1 microA). For this feature is operational amplifier type LM324 recommended or similar type with p-n-p transistor on input. Non-rechargeable cells can be charged, but their capacity will be significantly less than rechargeable cells Alkaline Cell Charger Circuit Diagram Parts list R1 2,2 kohm R2 10 kohm R3 2,7 kohm R4 15 kohm R5, R6 5,6 kohm R7, R8 22 kohm (viz text) / depend on R9, R10 (approx. 50 times greater than R9, R10) R9, R10 470 ohm (see text) / change charge current R11,...