Would you believe if I said that you could build a smart battery charger very cheaply using just a single transistor as its main active component? Yes that's true the circuit idea described here utilizes just one transistor for the detections of both, the lower and the upper thresholds of the connected battery charge levls and automatically switches the supply to the battery according to the relevant situations
To learn exactly how to make a simplest one transistor lead acid battery charger circuit, please REFER THE CIRCUIT DIAGRAM....
Setting up this cocky acclimation automated array charger circuit is actual simple and may be done in the afterward way:
Initially, do not affix the anchored agent ability supply; instead affix a 0-24V, capricious accumulation voltage to the circuit.
Remove the anode of D6 from the broadcast acquaintance and affix it to the absolute of the ability supply.
Keep both the presets about at the centermost position,
Switch ON the ability and acclimatize the voltage to 11.5 volts or lower.
Adjust P2, so that the broadcast aloof activates.
Now access the volts to about 13.5 volts, and acclimatize P1 so that the broadcast aloof deactivates.
The ambience action of the ambit is now complete.
Check the accomplished action by continuously capricious the voltage up and down.
You may now abolish the capricious ability accumulation and affix the anchored transformer, arch ability accumulation to it.
DON’T FORGET TO RECONNECT THE ANODE OF D6 BACK TO THE RELAY CONTACT OR THE BATTERY POSITIVE.
The array affiliated to this ambit will be answerable alone as continued as its voltage is in amid the aloft "window" level.