AutomaticBattery Charger

This is a automatic battery charger, after completing the charge it turns off automatically. It runs on AC power but you can also run it with DC power. Its not my idea or my invention, I got it from net. After understanding the circuit I built it and it works fine. So try to built this nd charge your battery without any tension .

Step 1 Parts You Need

1 - 8R2
1 - 18R
1 - 470R
1 - 1k
1 - 4k7
5 - 10k
1 - 1M2
2 - 3M3
3 - 100n monoblock capacitors
1 - 100u 25v PC mount electrolytic
1 - 1N 4148 diode
6 - 1N 4004 power diodes
1 - 12v Zener diode 400mW
1 - BC 547 transistor
1 - BC 557 transistor
1 - BD 679 transistor
1 - 4541 IC
1 - 14 pin IC socket
1 - 3mm orange LED
1 - 3mm red LED
1 - 5mm green LED
1 - battery snap
1 - DPDT slide-switch
1 - 10cm tinned copper wire
1 - Auto Nicad Charger PC board

Comments

[MJamesM]

Incomplete. To be a valid Instructable, you should provide your own pictures & description of the actual build and of it in use. If you copied this design somewhere else, you should credit the source and provide the link.

[silencekilla]

i agree

[frans688]

can i charge 9v batterys?
Thanks for answer¡¡¡