12v charger with 555 timer

876

18:47:40

Auto charge a 12v lead acid battery, the capacitor acts as the battery and the 20k resistor drains the capacitor to activate the charge again. the relay switches at 14.4 volts, 

published 10 years ago

Electronics3038

10 years ago

Nice work rob_houlden !!! 😊

yra

10 years ago

Good job, working great in sim. Have you tried a real world breadboard yet

wyoelk

10 years ago

Yippee numerous safety components in place. Great job

Karma247

10 years ago

Very good

Sercan

10 years ago

Very good!

firagira

10 years ago

Good good

Lucan01

9 years ago

If @yra is happy with this then i must give this a try. I got a Yuasa YB9-B 12V 9aH bike battery to try with this circuit.

Marvin31

9 years ago

well done

kumhare_amit

8 years ago

can you please draw a circuit to charge 4v lead acid battery from 220v ac power supply.

swan47

8 years ago

Is their a way to make sure its fail safe. Such as if the relay failed on the N.O position? And over charged battery. Can there be somthing to protect against a failing relay

swan47

7 years ago

Is it possible to set the recharge trigger to something a little higher instead of 10v

swan47

7 years ago

This circuit does not work on bench

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